BGE Baltimore Gas and Electric Pre-Employment Test (EEI CAST) — Questions and Answers

Question 1: What is indicated by a 'BV' notation on a gas distribution system blueprint?

Bottom View
Branch Volume
Ball Valve (Correct answer)
Back Vent

Correct answer: Ball Valve

BV on gas distribution blueprints stands for Ball Valve, indicating the location of an isolation valve on the pipeline.

Question 2: What is the significance of Maryland's Offshore Wind Energy Act in relation to BGE customers?

It mandates offshore wind procurement and allows costs to be recovered through customer rates (Correct answer)
It gives BGE exclusive rights to build offshore wind farms
It requires BGE to generate all power from wind by 2025
It prohibits BGE from purchasing fossil fuel energy

Correct answer: It mandates offshore wind procurement and allows costs to be recovered through customer rates

Maryland's Offshore Wind Energy Act authorized offshore wind development and allows utilities to recover associated costs through ratepayer charges, making customers partial funders of the projects.

Question 3: Which approach best supports quality outcomes in Blueprint Reading & Interpretation for Baltimore Gas and Electric?

Avoiding quality checks
Systematic application of evidence-based methods (Correct answer)
Relying solely on intuition
Rushing through tasks

Correct answer: Systematic application of evidence-based methods

Evidence-based methods provide a reliable foundation for achieving consistent, high-quality outcomes.

Question 4: What is the standard billing cycle length for most BGE residential customers?

60 days
14 days
7 days
30 days (Correct answer)

Correct answer: 30 days

BGE residential customers are typically billed on a monthly (approximately 30-day) billing cycle.

Question 5: What is the purpose of a 'detail drawing' included in a BGE construction blueprint package?

To provide a bird's-eye overview of the entire project site
To record as-built conditions after construction
To show a specific component or assembly at a larger scale with more specificity (Correct answer)
To list all materials and quantities for the project

Correct answer: To show a specific component or assembly at a larger scale with more specificity

Detail drawings zoom in on a specific part of the design, providing dimensions and specifications that cannot be shown clearly at the overall plan scale.

Question 6: According to NFPA 70E, which term describes the distance from an energized component within which an arc flash could cause a second-degree burn?

Prohibited approach boundary
Restricted approach boundary
Arc flash boundary (Correct answer)
Limited approach boundary

Correct answer: Arc flash boundary

The arc flash boundary is the distance at which an arc flash incident could deliver 1.2 cal/cm² of energy, sufficient to cause a second-degree burn.

Question 7: What is the purpose of the 'squeeze-off' pressure test sometimes used on polyethylene (PE) gas service lines?

To reduce gas pressure before customer meter replacement
To verify line integrity and isolate a section for inspection or repair without excavating the full line (Correct answer)
To test the effectiveness of the PE pipe's UV resistance
To increase the operating pressure temporarily

Correct answer: To verify line integrity and isolate a section for inspection or repair without excavating the full line

Squeeze-off tools mechanically compress PE pipe to stop gas flow, allowing a section to be isolated and pressure-tested or repaired with minimal excavation.

Question 8: BGE's underground distribution cables are most commonly insulated with which material?

Cross-linked polyethylene (XLPE) (Correct answer)
Glass fiber
Paper and oil
Ceramic composite

Correct answer: Cross-linked polyethylene (XLPE)

Modern underground distribution cables in BGE's network use cross-linked polyethylene insulation for durability and moisture resistance.

Question 9: Which skill is most important for success in Blueprint Reading & Interpretation within Baltimore Gas and Electric?

Avoiding feedback
Resisting change
Continuous learning and adaptation (Correct answer)
Working without any training

Correct answer: Continuous learning and adaptation

Continuous learning ensures professionals stay current with evolving practices in Blueprint Reading & Interpretation.

Question 10: What marking must be present on yellow polyethylene gas pipe to confirm it is approved for gas service?

The pipe requires no special marking since yellow color indicates gas use
A BGE-specific serial number must be stamped on each joint
Only the diameter and wall thickness need to be marked
The pipe must be marked with the manufacturer name, pipe size, material designation, pressure rating, and applicable standard (Correct answer)

Correct answer: The pipe must be marked with the manufacturer name, pipe size, material designation, pressure rating, and applicable standard

Approved gas pipe must be marked with manufacturer name, pipe size, material designation, pressure rating, and the applicable ASTM or ANSI standard to verify it meets specifications.

Question 11: A BGE crew must work on a 34.5 kV line. Per IEEE Std 516, which tool insulation class is required for live-line work at this voltage?

Class 0 (1,000V rated)
Class 3 (26,500V rated)
Class 4 (36,000V rated) (Correct answer)
Class 2 (17,000V rated)

Correct answer: Class 4 (36,000V rated)

IEEE Std 516 specifies Class 4 insulating tools (rated 36,000V) for live-line work on systems up to 36 kV phase-to-ground.

Question 12: Which component of the power grid is responsible for delivering electricity to end users?

Power plants
Circuit breakers
Transmission lines
Distribution network (Correct answer)

Correct answer: Distribution network

The distribution network is the final stage of the power grid responsible for delivering electricity directly to end users, such as homes, businesses, and industrial facilities. It consists of lower-voltage power lines, transformers, and local substations that branch out from the main transmission system. This network ensures that electricity is safely and reliably supplied to consumers.

Question 13: What is a 'switching order' in BGE distribution operations?

A work order for physically replacing a damaged switch
A customer request to change their BGE rate schedule
A purchase order for new switching equipment
A formal written or electronic sequence of steps authorizing specific switching operations to safely isolate or restore circuits (Correct answer)

Correct answer: A formal written or electronic sequence of steps authorizing specific switching operations to safely isolate or restore circuits

A switching order is a formal, sequenced document specifying exactly which switches to operate and in what order, ensuring circuits are safely isolated and restored with no steps missed.

Question 14: Under OSHA 1910.269, the minimum approach distance (MAD) for unqualified workers near energized 13.2 kV distribution lines is:

20 feet
2 feet 2 inches
1 foot 0 inches
10 feet (Correct answer)

Correct answer: 10 feet

OSHA 1910.269 Table R-6 requires unqualified persons to maintain a 10-foot limited approach distance from energized lines up to 50 kV.

Question 15: In BGE's generation mix procurement through PJM auctions, what is the primary mechanism for ensuring long-term capacity adequacy?

Federal mandates from FERC Order 888
The PJM Capacity Market (RPM auction) (Correct answer)
Spot market day-ahead purchases only
Self-build agreements with Maryland utilities

Correct answer: The PJM Capacity Market (RPM auction)

PJM's Reliability Pricing Model (RPM) capacity auction commits resources years ahead to guarantee sufficient generation exists to meet future peak demand.

Question 16: What is the minimum clearance distance BGE requires between vegetation and high-voltage transmission lines during tree trimming operations?

1 foot
10 feet
The lines must be de-energized before any trimming (Correct answer)
5 feet

Correct answer: The lines must be de-energized before any trimming

For high-voltage transmission lines, BGE requires lines to be de-energized and grounded before vegetation management work begins in close proximity.

Question 17: What is a fundamental principle of Material Selection & Properties in Baltimore Gas and Electric practice?

Working in isolation without guidance
Following established standards and best practices (Correct answer)
Using outdated methods
Ignoring industry guidelines

Correct answer: Following established standards and best practices

Following established standards and best practices ensures quality and consistency in Material Selection & Properties.

Question 18: Which respiratory protection is required when entering a space with hydrogen sulfide (H2S) concentration above IDLH?

N95 disposable respirator
Half-face air-purifying respirator
Powered air-purifying respirator (PAPR)
Self-contained breathing apparatus (SCBA) (Correct answer)

Correct answer: Self-contained breathing apparatus (SCBA)

SCBA is required for IDLH atmospheres because air-purifying respirators cannot protect against immediately dangerous concentrations.

Question 19: Under the NESC, what is the required minimum working clearance between a lineman and an energized 4 kV conductor when using rubber gloves rated for 7,500V?

The glove rating alone determines the safe distance
No additional clearance is needed if PPE is worn
Contact is permitted within the glove-rated voltage
The MAD per NESC Table 441-1 must also be observed (Correct answer)

Correct answer: The MAD per NESC Table 441-1 must also be observed

Rubber glove ratings provide protection at the point of contact, but NESC Table 441-1 minimum approach distances must still be respected for the body and other conductive objects.

Question 20: Which approach best supports quality outcomes in Material Selection & Properties for Baltimore Gas and Electric?

Relying solely on intuition
Systematic application of evidence-based methods (Correct answer)
Avoiding quality checks
Rushing through tasks

Correct answer: Systematic application of evidence-based methods

Evidence-based methods provide a reliable foundation for achieving consistent, high-quality outcomes.

Question 21: What information does a 'bore log' or 'soil boring' notation on a BGE pipeline drawing provide?

The location where a boring machine was staged during construction
Subsurface soil and rock conditions encountered at that location during site investigation (Correct answer)
The diameter of the horizontal directional drill bore path
The borehole used for pressure testing the pipeline

Correct answer: Subsurface soil and rock conditions encountered at that location during site investigation

Soil boring logs document the subsurface conditions (soil type, rock, groundwater depth) encountered during geotechnical investigation, helping engineers design appropriate installation methods.

Question 22: Which arc flash PPE category is required for tasks with an incident energy level between 4 and 8 cal/cm²?

Category 3
Category 0
Category 1
Category 2 (Correct answer)

Correct answer: Category 2

NFPA 70E Category 2 PPE (minimum 8 cal/cm² arc rating) is required for incident energies between 4 and 8 cal/cm².

Question 23: Which unit is used to measure residential electric energy consumption on a BGE bill?

Kilowatt-hour (kWh) (Correct answer)
Volt
Watt
Ampere

Correct answer: Kilowatt-hour (kWh)

Residential electric energy consumption is measured in kilowatt-hours (kWh), which represents power usage over time.

Question 24: During a major storm event, BGE prioritizes restoration in which order?

Alphabetical by street name
Smallest outages first to maximize restored customer count
Residential before commercial at all times
Transmission → distribution substations → feeders → individual services (Correct answer)

Correct answer: Transmission → distribution substations → feeders → individual services

BGE follows a systematic priority: restore transmission, then distribution substations, then feeders serving critical facilities, then individual services.

Question 25: How does collaboration enhance Tools & Equipment Operation in Baltimore Gas and Electric?

It brings diverse perspectives and improves outcomes (Correct answer)
It reduces individual accountability
It creates unnecessary meetings
It slows down the process

Correct answer: It brings diverse perspectives and improves outcomes

Collaboration brings together different viewpoints and expertise, leading to better decision-making and outcomes.

Question 26: What is the purpose of a hot stick (live-line tool) minimum length rating?

To ensure the tool reaches the work point from ground level
To support the weight of heavy conductors
To comply with DOT height regulations for vehicle transport
To maintain safe electrical insulation distance between the worker and energized conductors (Correct answer)

Correct answer: To maintain safe electrical insulation distance between the worker and energized conductors

The rated length of a hot stick provides the required insulation and approach distance clearance for the voltage being worked.

Question 27: Which type of thread sealant is acceptable for use on gas pipe threaded connections?

Teflon paste compound rated for water only
Silicone caulk applied to threads before assembly
Yellow PTFE tape or pipe dope specifically listed for gas service (Correct answer)
Standard white plumber's PTFE tape (water-rated)

Correct answer: Yellow PTFE tape or pipe dope specifically listed for gas service

Only yellow PTFE tape or pipe dope specifically listed for gas service should be used on gas pipe threads, as water-rated products may degrade when exposed to gas.

Question 28: What is the primary purpose of grid reliability in an electrical system?

Ensure stable and continuous power supply (Correct answer)
Increase electricity demand
Eliminate the need for power plants
Reduce electricity costs

Correct answer: Ensure stable and continuous power supply

Grid reliability is paramount in an electrical system to guarantee that electricity is delivered consistently and without interruption to consumers. Its primary purpose is to prevent outages and ensure the power supply meets demand, maintaining the functionality of homes, businesses, and critical infrastructure.

Question 29: What communication technology do BGE smart meters typically use to transmit usage data back to BGE?

Bluetooth
Radio frequency (RF) mesh network (Correct answer)
Fiber optic cable
Wi-Fi 802.11n

Correct answer: Radio frequency (RF) mesh network

BGE smart meters use a radio frequency mesh network to relay consumption data to BGE collection points without requiring a technician site visit.

Question 30: Which of the following best describes the function of a voltage regulator on a BGE distribution feeder?

It prevents customer appliances from drawing more current than rated
It converts three-phase power to single-phase for residential use
It automatically adjusts voltage along the feeder to keep it within acceptable limits as load varies (Correct answer)
It disconnects the feeder during lightning storms

Correct answer: It automatically adjusts voltage along the feeder to keep it within acceptable limits as load varies

Voltage regulators are autotransformers that continuously tap-change to maintain voltage within ANSI standards as feeder load fluctuates.

Question 31: What does 'estimated restoration time' (ERT) represent in a BGE outage event?

The time a customer originally called to report the outage
BGE's best projection of when power will be restored based on damage assessment and crew availability (Correct answer)
The number of hours remaining in the field crew's work shift
A contractual guarantee of when service will be restored

Correct answer: BGE's best projection of when power will be restored based on damage assessment and crew availability

ERT is BGE's projected restoration time based on damage scope, crew availability, and repair complexity — it is an estimate that may be updated as more information becomes available.

Question 32: A BGE quality inspector is reviewing a contractor's material certifications. What is the inspector verifying?

That the contractor purchased materials locally
That materials meet the specified grade, standard, and traceability requirements (Correct answer)
That all materials are domestic-made
That materials are the cheapest available option

Correct answer: That materials meet the specified grade, standard, and traceability requirements

Material certifications confirm that materials conform to required specifications (e.g., ASTM, ANSI) and provide traceability to the manufacturer and heat/lot number.

Question 33: A gas line crossing a river requires a casing pipe. What material is specified in DOT regulations for the carrier pipe inside the casing?

Standard-weight carbon steel with external coating and cathodic protection (Correct answer)
PVC schedule 40
Corrugated stainless steel tubing (CSST)
Copper type K

Correct answer: Standard-weight carbon steel with external coating and cathodic protection

DOT 49 CFR Part 192 requires steel carrier pipe with external corrosion coating and cathodic protection for crossings through casings under water bodies.

Question 34: What is the purpose of the relief valve on a natural gas service pressure regulator?

To filter debris from the gas stream before it enters the regulator
To vent excess gas if downstream pressure exceeds a safe limit (Correct answer)
To prevent gas from flowing backward into the main
To increase downstream pressure when demand is high

Correct answer: To vent excess gas if downstream pressure exceeds a safe limit

The relief valve automatically vents gas to atmosphere if downstream pressure rises above the setpoint, protecting customers' appliances and piping from overpressure.

Question 35: A BGE technician is asked to work on energized electrical equipment above 50 volts. Per OSHA's Electrical Safety standard, what PPE is required at minimum?

A hard hat and steel-toed boots only
High-visibility vest and hearing protection
Standard work gloves and safety glasses
Rubber insulating gloves rated for the voltage level and arc flash protective equipment (Correct answer)

Correct answer: Rubber insulating gloves rated for the voltage level and arc flash protective equipment

OSHA requires rubber insulating gloves rated for the specific voltage and appropriate arc flash PPE when working on or near energized electrical equipment.

Question 36: A BGE field crew smells natural gas while working in a neighborhood. What is their first priority?

Identify the leak source immediately
Evacuate the area and call 911 and BGE emergency line (Correct answer)
Check all meters in the area
Ventilate nearby buildings

Correct answer: Evacuate the area and call 911 and BGE emergency line

Life safety comes first — evacuate and call emergency services before any investigation or repair attempts.

Question 37: What does the 'invert elevation' noted on a pipeline profile drawing refer to?

The elevation at the inside bottom of the pipe (Correct answer)
The elevation of the ground surface above the pipe
The elevation at the top of the pipe
The elevation of the pipe centerline

Correct answer: The elevation at the inside bottom of the pipe

Invert elevation is the elevation measured at the lowest interior point of a pipe, critical for calculating flow gradients and proper drainage.

Question 38: What is a fundamental principle of Blueprint Reading & Interpretation in Baltimore Gas and Electric practice?

Following established standards and best practices (Correct answer)
Ignoring industry guidelines
Working in isolation without guidance
Using outdated methods

Correct answer: Following established standards and best practices

Following established standards and best practices ensures quality and consistency in Blueprint Reading & Interpretation.

Question 39: BGE's Budget Billing plan is designed to help customers by:

Capping the maximum bill amount each month
Providing a fixed rate per kWh regardless of market prices
Eliminating all late payment fees permanently
Spreading estimated annual energy costs into equal monthly payments (Correct answer)

Correct answer: Spreading estimated annual energy costs into equal monthly payments

Budget Billing averages a customer's estimated annual costs into equal monthly installments to avoid seasonal bill spikes.

Question 40: What type of meter does BGE primarily use for its Advanced Metering Infrastructure (AMI) program?

Analog dial meter
Smart digital two-way communication meter (Correct answer)
Pulse counting meter
Electromechanical disk meter

Correct answer: Smart digital two-way communication meter

BGE's AMI program uses smart digital meters that communicate usage data two-way between the customer and BGE automatically.

Question 41: Under the Maryland Healthy Air Act and EPA regulations, BGE must report SF6 (sulfur hexafluoride) gas emissions from transmission equipment because SF6 is classified as:

A hazardous air pollutant under NESHAP
A toxic release chemical under EPCRA Section 313
A Class I ozone-depleting substance
A potent greenhouse gas under the Clean Air Act (Correct answer)

Correct answer: A potent greenhouse gas under the Clean Air Act

SF6 is a potent greenhouse gas with a global warming potential ~23,500 times that of CO2, and utilities must report emissions under EPA's Greenhouse Gas Reporting Program.

Question 42: Under the Maryland Healthy Air Act and related BGE compliance obligations, BGE must report emissions data from its generating facilities to:

The Federal Reserve Board
The Maryland Department of the Environment (MDE) (Correct answer)
The U.S. Department of Transportation
The Maryland Department of Labor

Correct answer: The Maryland Department of the Environment (MDE)

BGE's generation assets must comply with the Maryland Healthy Air Act and report emissions to the Maryland Department of the Environment.

Question 43: BGE's 'Peak Rewards' program asks customers to reduce energy use during peak demand periods. What type of program is this?

A rebate program for installing solar panels
A mandatory load shedding requirement for all residential customers
A fixed-rate plan that eliminates peak pricing
A demand response program with bill credits for curtailing usage (Correct answer)

Correct answer: A demand response program with bill credits for curtailing usage

Peak Rewards is a voluntary demand response program where customers earn bill credits in exchange for allowing BGE to cycle their central A/C or heat pump during high-demand periods.

Question 44: How does collaboration enhance Installation Techniques in Baltimore Gas and Electric?

It creates unnecessary meetings
It brings diverse perspectives and improves outcomes (Correct answer)
It reduces individual accountability
It slows down the process

Correct answer: It brings diverse perspectives and improves outcomes

Collaboration brings together different viewpoints and expertise, leading to better decision-making and outcomes.

Question 45: What is the maximum permissible noise exposure for BGE workers without hearing protection over an 8-hour shift?

85 dBA
95 dBA
80 dBA
90 dBA (Correct answer)

Correct answer: 90 dBA

OSHA's permissible exposure limit (PEL) for noise is 90 dBA as an 8-hour time-weighted average.

Question 46: What does 'spinning reserve' mean in the context of BGE's grid operations?

Reserve fuel stored at natural gas peaker plants
Online generators running below full capacity ready to increase output instantly (Correct answer)
Rotating equipment used in transformer cooling
Generators that are off but can start within 10 minutes

Correct answer: Online generators running below full capacity ready to increase output instantly

Spinning reserve refers to capacity from already-running generators that can be ramped up immediately to cover sudden load increases or generator failures.

Question 47: A BGE employee notices a co-worker has skipped wearing a hard hat in an active work zone. What is the correct action?

Immediately remind the co-worker and ensure compliance before continuing (Correct answer)
Wait for the supervisor to notice
Ignore it if the task is nearly complete
Report it in the weekly safety log

Correct answer: Immediately remind the co-worker and ensure compliance before continuing

Every employee has the authority and responsibility to stop unsafe behavior immediately — safety culture depends on peer accountability.

Question 48: Which of the following is a BGE-approved method for a customer to report a streetlight outage?

Posting on BGE's public social media page only
Contacting the local city mayor's office
Filing a complaint with the Maryland Attorney General
Calling BGE's customer service line or submitting a report via BGE's website (Correct answer)

Correct answer: Calling BGE's customer service line or submitting a report via BGE's website

Customers can report streetlight outages by calling BGE customer service or using the online reporting tool at BGE's website.

Question 49: A BGE technician must enter a confined space with an oxygen level of 18.5%. What action should be taken?

Enter with a respirator
Enter only with a buddy
Do not enter until ventilated to safe levels (Correct answer)
Enter briefly to assess conditions

Correct answer: Do not enter until ventilated to safe levels

Safe oxygen levels range from 19.5% to 23.5%; below 19.5% the space must be ventilated before entry.

Question 50: Which BGE program allows large commercial and industrial customers to voluntarily reduce load during peak grid stress events in exchange for bill credits?

Renewable Energy Certificate trading
Time-of-Use Pricing
Green Power Connection
Demand Response (Peak RewardsSM) (Correct answer)

Correct answer: Demand Response (Peak RewardsSM)

BGE's Peak Rewards and similar demand response programs compensate large customers for curtailing load when PJM or BGE declares a grid emergency or capacity event.

Question 51: What information must a BGE field crew relay to the system control center before opening a switch on an energized distribution line?

The switch ID, current load conditions, and confirmation that safe clearance distances are maintained (Correct answer)
Their scheduled lunch break and expected return time
The estimated material cost for completing the repair
The account numbers of all customers in the affected segment

Correct answer: The switch ID, current load conditions, and confirmation that safe clearance distances are maintained

Crews must communicate the switch identifier, confirm safe approach clearances, and verify load conditions with the control center to prevent unsafe switching operations or accidental energization.

Question 52: Which component helps prevent large-scale blackouts by managing electricity flow?

Transformers
Circuit breakers and protective relays (Correct answer)
Power meters
Voltage regulators

Correct answer: Circuit breakers and protective relays

Circuit breakers and protective relays are crucial safety devices designed to detect faults and automatically interrupt the flow of electricity when an anomaly occurs. This rapid response isolates the faulty section of the grid, preventing cascading failures and limiting the extent of potential blackouts.

Question 53: A drawing revision block shows 'Rev C – 03/15/2025 – Added service lateral.' What should a technician do before using this drawing in the field?

Request a new drawing from engineering
Verify they have Rev C and not an older version (Correct answer)
Disregard revisions if the original was approved
Use the previous revision as a backup

Correct answer: Verify they have Rev C and not an older version

Technicians must always confirm they are working from the latest revision to ensure field work reflects the most current design.

Question 54: Which BGE system is primarily used to aggregate customer outage reports and model fault locations?

SCADA
Outage Management System (OMS) (Correct answer)
Customer billing database
Geographic Information System (GIS) mapping only

Correct answer: Outage Management System (OMS)

BGE's Outage Management System aggregates customer calls and smart meter signals to model outage boundaries and efficiently dispatch repair crews.

Question 55: On a gas distribution map, a line labeled 'LP' differs from one labeled 'MP' in what fundamental way?

LP operates at low pressure while MP operates at medium pressure (Correct answer)
LP lines are plastic and MP lines are metal
LP is a lateral and MP is a main
LP lines are larger diameter than MP lines

Correct answer: LP operates at low pressure while MP operates at medium pressure

LP and MP designations refer to the operating pressure class of the gas main, with low pressure typically below 0.5 psig and medium pressure above that threshold.

Question 56: When a BGE blueprint shows a gas service line connecting to a residential meter, where is the 'service termination point' typically located?

At the curb valve in the street
At the point where the service enters the building foundation
At the main tee fitting
At the outlet side of the meter (Correct answer)

Correct answer: At the outlet side of the meter

BGE's responsibility typically ends at the outlet of the meter, after which the customer's piping begins.

Question 57: What does the PDCA cycle stand for in quality management?

Predict, Design, Create, Adapt
Plan, Do, Check, Act (Correct answer)
Prepare, Document, Certify, Approve
Price, Demand, Cost, Assessment

Correct answer: Plan, Do, Check, Act

PDCA (Plan, Do, Check, Act) is a four-step management method for continuous improvement of processes and products.

Question 58: Why must BGE crews establish personal protective grounds before working on de-energized distribution lines?

To prevent static charge buildup on the cable insulation
To protect workers from induced voltage and accidental re-energization by shorting fault current to ground (Correct answer)
To satisfy meter calibration requirements at the work site
To improve the quality of the spliced electrical connection

Correct answer: To protect workers from induced voltage and accidental re-energization by shorting fault current to ground

Personal protective grounds ensure that if a line is accidentally re-energized or carries induced voltage, the fault current flows to ground rather than through the worker's body.

Question 59: Which federal regulation requires BGE to provide advance notice before disconnecting service to a customer with a documented medical condition?

DOT Pipeline Safety Regulations Part 192
Maryland Public Service Commission Order 88-853 (Correct answer)
OSHA 29 CFR 1910.147
Clean Air Act Section 112

Correct answer: Maryland Public Service Commission Order 88-853

Maryland PSC Order 88-853 mandates extended notice and protections for customers with life-threatening medical conditions before disconnection.

Question 60: A customer complains that their bill doubled compared to the same month last year. Before assuming a billing error, a representative should first check:

Whether BGE changed its logo recently
Degree day data and the customer's usage history for weather-related consumption differences (Correct answer)
If the customer's neighbor has a similar account balance
The customer's credit report

Correct answer: Degree day data and the customer's usage history for weather-related consumption differences

Comparing degree day data (heating/cooling demand) with usage history often explains apparent billing anomalies driven by seasonal weather differences.

Question 61: What is the purpose of a CSO (Curb Stop/Curb Valve) installed on a gas service line?

It prevents backflow of gas from the customer's system into the main
It measures gas consumption for billing purposes
It is BGE's control point to shut off gas to the service without entering the property (Correct answer)
It regulates gas pressure between the main and the meter

Correct answer: It is BGE's control point to shut off gas to the service without entering the property

The curb stop is a valve installed near the property line that BGE uses to control gas supply to the service without needing access to the customer's property.

Question 62: Per 49 CFR Part 192, how frequently must gas distribution mains located in business districts be surveyed for leaks using leak detection equipment?

At least once per calendar year (Correct answer)
At least twice per calendar year
Once every 3 years
Once every 5 years

Correct answer: At least once per calendar year

Federal regulations require that gas distribution mains in business districts be surveyed for leaks at least once per calendar year using leak detection equipment.

Question 63: What role do transformers play in electricity distribution?

Regulate electricity usage
Convert AC to DC
Increase or decrease voltage levels (Correct answer)
Generate electricity

Correct answer: Increase or decrease voltage levels

Transformers are essential components in electricity distribution systems, primarily responsible for changing voltage levels. Step-up transformers increase voltage for efficient long-distance transmission, while step-down transformers decrease voltage for safe distribution to homes and businesses. This ability to adjust voltage is critical for the effective and safe delivery of electricity across the grid.

Question 64: Under BGE's emergency response plan, when is a 'major event' declaration typically triggered?

Only during events covered by a federal or state disaster declaration
When five or more customers call to report an outage simultaneously
Whenever a BGE vice president or executive is personally notified of an outage
When outage magnitude or storm damage exceeds normal operating thresholds and requires activation of additional resources and command structure (Correct answer)

Correct answer: When outage magnitude or storm damage exceeds normal operating thresholds and requires activation of additional resources and command structure

A major event declaration activates enhanced staffing, mutual aid requests, full ICS protocols, and proactive public communications when outage scale exceeds routine restoration capabilities.

Question 65: What does the term 'qualified person' mean in the context of OSHA 29 CFR 1910.269 for electric utility work?

An employee holding a state electrician's license
Any employee with more than one year of experience
A person trained and knowledgeable in construction and operation of electric equipment and hazards (Correct answer)
A supervisor with OSHA 30-hour certification

Correct answer: A person trained and knowledgeable in construction and operation of electric equipment and hazards

OSHA 1910.269 defines a qualified person as one trained and knowledgeable about electric equipment construction, operation, and associated hazards.

Question 66: For gas service risers transitioning from underground PE to aboveground steel, what fitting is required at the transition point?

Flanged union
Compression coupling
Electrofusion saddle
Anodeless riser or PE-to-steel transition fitting (Correct answer)

Correct answer: Anodeless riser or PE-to-steel transition fitting

An anodeless riser or factory-made PE-to-steel transition fitting safely joins the two incompatible materials while maintaining pressure integrity and corrosion protection.

Question 67: In BGE's distribution system, what is the purpose of a sectionalizing switch?

To regulate billing intervals for commercial customers
To isolate a faulted section of line while maintaining power to healthy sections (Correct answer)
To convert AC power to DC for battery storage
To measure voltage levels at a distribution transformer

Correct answer: To isolate a faulted section of line while maintaining power to healthy sections

Sectionalizing switches allow BGE operators to isolate the faulted segment and reroute power through alternate paths, minimizing the number of customers affected by a single fault.

Question 68: What is the purpose of installing a drip leg (sediment trap) on a gas appliance supply line?

To measure gas flow rate to the appliance
To collect moisture and debris before they enter the appliance (Correct answer)
To regulate gas pressure to the appliance
To act as an emergency shutoff valve

Correct answer: To collect moisture and debris before they enter the appliance

A drip leg collects condensation and pipe debris before they can enter and damage appliance controls or burners.

Question 69: On a BGE construction drawing, what is the purpose of a 'match line'?

It marks where two different materials are joined
It indicates where one drawing sheet continues on another sheet (Correct answer)
It denotes a property boundary line
It shows where an inspection weld was performed

Correct answer: It indicates where one drawing sheet continues on another sheet

A match line is used when a project is too large to fit on one sheet; it shows where to find the continuation of the drawing on an adjacent sheet.

Question 70: What is the function of BGE's SCADA system during outage management operations?

To dispatch and route field crews to outage locations
To process payroll for mutual aid crews
To provide real-time monitoring and remote control of substations and switching equipment (Correct answer)
To generate and distribute customer invoices automatically

Correct answer: To provide real-time monitoring and remote control of substations and switching equipment

SCADA gives BGE system operators real-time visibility of substation status and allows remote operation of switching equipment without requiring a crew to travel to each site.

Question 71: A customer calls BGE reporting a strong gas odor inside their home. What is the FIRST instruction you should give them?

Tell them to check the stove burners immediately
Schedule a next-day service appointment
Instruct them to leave the home and call 911 and BGE from outside (Correct answer)
Ask them to open windows and wait for a technician

Correct answer: Instruct them to leave the home and call 911 and BGE from outside

When a customer smells gas inside their home, they must evacuate immediately and call emergency services from a safe location outside.

Question 72: What does the term 'two-man rule' mean in BGE safety procedures?

Two approvals needed for work orders
A second worker must be present when performing high-hazard tasks (Correct answer)
Two safety checks must be performed daily
Two supervisors must sign off on safety plans

Correct answer: A second worker must be present when performing high-hazard tasks

The two-man rule requires a second trained worker present during high-hazard tasks to provide assistance or call for help.

Question 73: What is the most important aspect of customer service in the utility industry?

Only responding to complaints
Providing clear and timely communication (Correct answer)
Encouraging customers to use less energy
Minimizing service requests

Correct answer: Providing clear and timely communication

In the utility industry, providing clear and timely communication is paramount for customer service, especially during outages or service disruptions. Keeping customers informed about issues, expected restoration times, and safety measures builds trust and manages expectations effectively.

Question 74: What does 'restoration priority' mean during a BGE major outage event?

Critical facilities and upstream transmission faults are addressed before individual residential outages (Correct answer)
All customers are restored strictly in the order their outage was reported
Commercial accounts are always restored before any residential customers
Customers who have been without power the longest are always restored first

Correct answer: Critical facilities and upstream transmission faults are addressed before individual residential outages

BGE prioritizes transmission-level faults first because clearing them restores the most customers simultaneously, then addresses critical facilities, then works down to individual service restorations.

Question 75: On a BGE electrical distribution drawing, what does the symbol of a circle with an 'X' inside typically represent?

A streetlight
A junction box
A fuse or cutout (Correct answer)
A transformer

Correct answer: A fuse or cutout

A circle with an X inside is a common symbol for a fuse or fused cutout on electrical distribution single-line diagrams.

Question 76: When installing an underground gas service line, what is the minimum depth requirement for burial in BGE territory?

18 inches
36 inches
24 inches (Correct answer)
12 inches

Correct answer: 24 inches

Underground gas service lines must be buried at a minimum depth of 24 inches to protect against damage from surface activities.

Question 77: What term describes the maximum electrical load BGE's system must be able to serve, typically occurring on the hottest summer afternoons in Maryland?

Base load
Installed capacity
System peak demand (Correct answer)
Nameplate rating

Correct answer: System peak demand

System peak demand is the highest load level BGE must reliably serve, which in Maryland typically occurs during hot summer weekday afternoons due to air conditioning.

Question 78: When excavating near underground gas lines, contractors in Maryland are required by law to call the one-call notification system at least how many business days in advance?

5 business days
3 business days
1 business day
2 business days (Correct answer)

Correct answer: 2 business days

Maryland law requires contractors to notify the one-call center (Miss Utility / 811) at least 2 business days before excavation to allow utility marking.

Question 79: Maryland PSC regulations require BGE to restore power to what percentage of customers within 24 hours following a major storm event?

85%
90% (Correct answer)
75%
95%

Correct answer: 90%

Maryland PSC outage restoration benchmarks require utilities like BGE to restore approximately 90% of affected customers within 24 hours of a major storm.

Question 80: Why is it important for utility companies to follow safety compliance standards?

To reduce the number of employees
To protect workers and customers from hazards (Correct answer)
To increase electricity prices
To eliminate customer service calls

Correct answer: To protect workers and customers from hazards

Following safety compliance standards is crucial for utility companies to protect both their workers and the public from inherent hazards like electrocution, gas leaks, and equipment malfunctions. Adherence to these standards minimizes accidents, injuries, and potential fatalities, ensuring a safe operating environment.

Question 81: After installing a new BGE AMI meter, what must the technician verify before leaving the job site?

That the meter is communicating on the RF network and the initial reading is confirmed in BGE's system (Correct answer)
That the customer has signed the digital work order on the technician's device
That the customer's HVAC system is functioning correctly after the meter swap
That all service panel breakers are in the ON position

Correct answer: That the meter is communicating on the RF network and the initial reading is confirmed in BGE's system

Confirming successful AMI network registration and initial read capture is mandatory; a meter that is not communicating fails the primary purpose of the AMI deployment.

Question 82: Which sustainability metric measures the total greenhouse gas emissions across a product's entire life cycle, including manufacturing and disposal?

Carbon intensity rating
Energy return on investment (EROI)
Life cycle assessment (LCA) (Correct answer)
Scope 1 emissions factor

Correct answer: Life cycle assessment (LCA)

A life cycle assessment (LCA) evaluates all environmental impacts—including manufacturing, operation, and end-of-life—of energy technologies like solar panels or wind turbines.

Question 83: What does 'load shedding' mean in the context of grid reliability emergencies?

Shedding ice from transmission lines in winter
Deliberately de-energizing portions of the network to prevent system collapse (Correct answer)
Moving load from one feeder to another
Reducing transformer tap position under heavy load

Correct answer: Deliberately de-energizing portions of the network to prevent system collapse

Load shedding is the intentional disconnection of customer load to reduce system stress and prevent a wider, uncontrolled blackout during a grid emergency.

Question 84: Which conductor material is most commonly used for overhead transmission lines due to its high strength-to-weight ratio?

Galvanized steel
Solid aluminum
Copper
ACSR (Aluminum Conductor Steel Reinforced) (Correct answer)

Correct answer: ACSR (Aluminum Conductor Steel Reinforced)

ACSR combines aluminum's conductivity with a steel core for tensile strength, making it ideal for long-span overhead transmission lines.

Question 85: What does net metering mean for a BGE customer who has rooftop solar panels?

A discount for using only gas appliances
Paying only for net new appliances installed on the property
A program reserved for low-income customers
Receiving a billing credit for surplus electricity generated and fed back to the grid (Correct answer)

Correct answer: Receiving a billing credit for surplus electricity generated and fed back to the grid

Under net metering, BGE credits customers for excess solar electricity exported to the grid, offsetting charges for energy drawn from BGE.

Question 86: A blueprint indicates a gas main with the notation 'XCOAT.' What does this describe?

The pipe requires extra coating before backfill
The pipe is coated with an external corrosion-resistant material (Correct answer)
The pipe coating was inspected and approved
The pipe has crossed an existing coated main

Correct answer: The pipe is coated with an external corrosion-resistant material

XCOAT indicates the pipe has an external protective coating applied to resist corrosion, commonly used on steel mains in corrosive soil conditions.

Question 87: What type of wrench is required when connecting a stainless steel corrugated flexible gas connector to a brass valve to prevent galling?

Open-end wrench only on the connector; no counter-hold needed
Two wrenches — one to hold the valve body, one to turn the fitting (Correct answer)
Impact wrench to achieve rapid torque
Pipe wrench with serrated jaws

Correct answer: Two wrenches — one to hold the valve body, one to turn the fitting

Using two wrenches — one holding the stationary fitting and one turning the connector — prevents torque from being transmitted into the valve body or flexible connector tubing, avoiding joint damage and galling.

Question 88: Which OSHA standard primarily governs electrical safety requirements for BGE utility workers?

29 CFR 1910.1200
29 CFR 1910.147
29 CFR 1910.269 (Correct answer)
29 CFR 1926.451

Correct answer: 29 CFR 1910.269

29 CFR 1910.269 is the OSHA standard specifically governing electric power generation, transmission, and distribution.

Question 89: What is the primary environmental benefit of BGE's underground cable projects compared to overhead lines?

They eliminate storm-related outages and reduce tree trimming needs (Correct answer)
They generate electricity from ground heat
They reduce electromagnetic interference only
They increase transmission voltage capacity

Correct answer: They eliminate storm-related outages and reduce tree trimming needs

Underground cables are protected from weather events and eliminate the need for tree trimming, improving reliability and reducing vegetation management impacts.

Question 90: What does the demand charge on a BGE commercial electric bill represent?

Monthly fixed meter rental fee
Total energy consumed during the billing period
The peak power draw in kilowatts recorded during a set interval (Correct answer)
The cost of connecting service to the property

Correct answer: The peak power draw in kilowatts recorded during a set interval

Demand charges reflect the highest rate of power draw (in kW) recorded during a specified interval, typically 15 or 30 minutes.

Question 91: When interpreting a gas system schematic showing a 'PRV' symbol, what function does this device perform?

Prevents reverse gas flow
Purges residual gas from a pipe section
Reduces upstream pressure to a lower set downstream pressure (Correct answer)
Monitors pipeline vibration remotely

Correct answer: Reduces upstream pressure to a lower set downstream pressure

A PRV (Pressure Reducing Valve) automatically reduces higher inlet pressure to a lower, controlled outlet pressure for safe distribution.

Question 92: A BGE gas main drawing shows 'PE 2" SDR 11' for a service line. What does SDR 11 specify?

The pipe's standard pressure rating class
The static delivery rate in flow units
The ratio of pipe outer diameter to wall thickness (Correct answer)
The soil displacement ratio during installation

Correct answer: The ratio of pipe outer diameter to wall thickness

SDR (Standard Dimension Ratio) is the ratio of outside diameter to wall thickness; SDR 11 indicates a specific wall thickness relative to pipe diameter, defining pressure capacity.

Question 93: What action is required before a gas technician can cut into an existing live gas main for a new service connection?

Shut off gas to the entire block and purge the main
Apply for a variance from the state utility commission
Obtain a BGE line location, secure all necessary permits, and follow hot-tap or pressure-reduction procedures (Correct answer)
Notify the local fire department and proceed

Correct answer: Obtain a BGE line location, secure all necessary permits, and follow hot-tap or pressure-reduction procedures

Before cutting into a live main, the technician must confirm line location, obtain permits, and follow approved hot-tap or pressure-control procedures to safely make the connection.

Question 94: A pipe coating inspection using a holiday detector finds a discontinuity (holiday) in the coating. What must occur?

Apply a tape flag and move on
Increase cathodic protection current to compensate
Document but allow backfilling if the holiday is small
Repair the holiday and re-test the repaired area before backfilling (Correct answer)

Correct answer: Repair the holiday and re-test the repaired area before backfilling

All coating holidays must be repaired and re-tested prior to backfilling to ensure continuous corrosion protection.

Question 95: Under BGE's low-income assistance programs, which program provides bill credits to eligible Maryland customers?

Electric Universal Service Program (EUSP) (Correct answer)
LIHEAP Energy Assistance
BGE SMART Energy Savers Program
Peak Rewards Rebate Program

Correct answer: Electric Universal Service Program (EUSP)

The Electric Universal Service Program (EUSP) provides ongoing bill credits to income-qualified Maryland electric customers.

Question 96: A BGE gas map shows a valve marked 'NO.' In normal system operations, what does this mean?

The valve was installed with no flow restriction
The valve is Normally Open (Correct answer)
The valve has no operational status assigned
The valve is Not Operable and requires maintenance

Correct answer: The valve is Normally Open

On utility system maps, 'NO' designates a Normally Open valve, meaning it is open during standard operating conditions and would be closed only during emergencies or maintenance.

Question 97: The NESC requires that all new overhead distribution poles in Maryland be designed to withstand wind and ice loading based on which loading district classification for the Baltimore area?

Heavy loading district (Correct answer)
Medium loading district
Extreme wind zone
Light loading district

Correct answer: Heavy loading district

Baltimore falls within the Heavy loading district per the NESC, requiring poles and conductors to be designed for heavy ice and wind loading.

Question 98: When should a gas technician install a pressure regulator on a residential gas service?

Only on commercial accounts
When the distribution system pressure exceeds the maximum inlet pressure for the customer's appliances (Correct answer)
Only when the customer requests lower pressure
Regulators are installed by BGE only and not by contractors

Correct answer: When the distribution system pressure exceeds the maximum inlet pressure for the customer's appliances

A pressure regulator must be installed when distribution pressure exceeds the maximum inlet pressure rating of the customer's gas appliances to prevent equipment damage and unsafe operation.

Question 99: A BGE crew is about to perform switching operations during a thunderstorm. What should they do?

Wear rubber gloves and continue normally
Complete the switching quickly before lightning worsens
Suspend outdoor switching operations and wait for the storm to pass (Correct answer)
Call dispatch for authorization to continue

Correct answer: Suspend outdoor switching operations and wait for the storm to pass

Outdoor switching operations must be suspended during thunderstorms due to the extreme risk of lightning striking energized equipment.

Question 100: What pressure test is typically used to verify the integrity of new gas piping before placing it in service?

An air or nitrogen pressure test at 1.5 times the maximum allowable operating pressure (Correct answer)
A visual inspection with gas flowing at normal operating pressure
A water pressure test at 150% of operating pressure
A soap bubble test at normal operating pressure only

Correct answer: An air or nitrogen pressure test at 1.5 times the maximum allowable operating pressure

New gas piping must be pressure-tested with air or inert gas (not gas) at 1.5 times the MAOP to verify integrity before being placed in service.

Question 101: What does 'traceability' mean in the context of BGE utility material quality control?

The ability to link an installed component back to its manufacturer, lot, and test records (Correct answer)
The GPS tracking of utility vehicles
The process of marking pipes with spray paint before burial
The ability to track a shipment's delivery location

Correct answer: The ability to link an installed component back to its manufacturer, lot, and test records

Traceability ensures that any installed material can be traced back to its origin, certifications, and test results, enabling targeted response if a defect or recall occurs.

Question 102: What does the abbreviation 'ROW' stand for on a BGE pipeline blueprint?

Riser on Wall
Regulator Output Width
Recorded Operating Wattage
Right-of-Way (Correct answer)

Correct answer: Right-of-Way

ROW stands for Right-of-Way, designating the corridor of land where BGE has legal authority to install and maintain utility infrastructure.

Question 103: Which principle underpins Total Quality Management (TQM) in Baltimore Gas and Electric?

Minimize customer feedback
Top-down control only
Everyone in the organization is responsible for quality (Correct answer)
Quality is only the QA department's job

Correct answer: Everyone in the organization is responsible for quality

TQM is based on the principle that quality is everyone's responsibility, from leadership to front-line workers.

Question 104: What is the correct way to test a completed gas installation for leaks using a combustible gas detector?

Pass the probe quickly along all joints at a rate of at least 12 inches per second
Move the probe slowly along all joints and connections at a rate not exceeding 1-2 inches per second while monitoring the reading (Correct answer)
Use the detector only at high points in the piping where gas would accumulate
Hold the detector 6 inches away from joints and check for the alarm to sound

Correct answer: Move the probe slowly along all joints and connections at a rate not exceeding 1-2 inches per second while monitoring the reading

The probe must be moved slowly at 1-2 inches per second along all joints so the instrument has time to sample and detect even small gas concentrations.

Question 105: When a BGE meter is found to be running slow (under-registering consumption), what is the standard corrective action?

BGE back-bills the customer for estimated unbilled consumption up to a Maryland PSC regulatory time limit (Correct answer)
The meter is replaced and no billing adjustment is made
The customer is charged a flat penalty fee
The customer receives a credit for the undercharge

Correct answer: BGE back-bills the customer for estimated unbilled consumption up to a Maryland PSC regulatory time limit

When a meter under-registers, BGE may back-bill for the estimated unbilled amount, subject to Maryland Public Service Commission limits on the allowable back-billing period.

Question 106: What information is typically recorded when a BGE field technician performs a meter exchange?

Date and weather conditions only
Customer name and credit score
Only the new meter serial number
Old meter serial number with final reading, and new meter serial number with initial reading (Correct answer)

Correct answer: Old meter serial number with final reading, and new meter serial number with initial reading

A complete meter exchange record captures the outgoing serial number with its final reading and the incoming serial number with its initial reading to ensure seamless billing continuity.

Question 107: What information must be verified before a BGE worker accepts an equipment clearance from the control center?

The supervisor's name and badge number
Time of clearance and crew size only
Equipment number, its de-energized status, and the isolation points (Correct answer)
Only the equipment number

Correct answer: Equipment number, its de-energized status, and the isolation points

Workers must verify equipment identity, confirmation of de-energization, and all isolation/grounding points before accepting a clearance.

Question 108: What does the 'W' designation in wire types like THWN indicate about the insulation material?

White-colored insulation
Wound in a specific configuration
Woven braid outer jacket
Rated for wet or damp locations (Correct answer)

Correct answer: Rated for wet or damp locations

In NEC wire designations, 'W' signifies the insulation is suitable for wet locations, meaning it resists moisture intrusion in conduit or direct burial applications.

Question 109: A technician uses a pipe threading machine to thread a 1-inch steel gas service riser. After threading, what is the immediate next step before applying pipe dope?

Pressure test the thread
Apply PTFE tape to the threads
Ream the inside of the pipe
Blow out chips with compressed air and inspect the thread (Correct answer)

Correct answer: Blow out chips with compressed air and inspect the thread

Metal chips and cutting oil from the threading process must be cleared with compressed air and the thread visually inspected for completeness before any sealant is applied.

Question 110: Which of the following is considered a renewable energy source?

Natural gas
Coal
Solar power (Correct answer)
Petroleum

Correct answer: Solar power

Solar power is considered a renewable energy source because it harnesses energy from the sun, which is an inexhaustible natural resource. Unlike fossil fuels like natural gas, coal, and petroleum, solar energy replenishes naturally and does not deplete finite resources.

Question 111: When operating a cable pulling machine (tugger) to install underground distribution cable, the maximum pulling tension should not exceed:

The cable's rated short-circuit current in amperes
The cable manufacturer's maximum pulling tension specification (Correct answer)
500 lbs regardless of cable size
10% of the conduit's rated mechanical strength

Correct answer: The cable manufacturer's maximum pulling tension specification

Exceeding the cable manufacturer's maximum pulling tension can damage conductors, insulation, or jacket, so the spec sheet value is the absolute limit during installation.

BGE Baltimore Gas and Electric Pre-Employment Test (EEI CAST)

The BGE pre-employment assessment uses the EEI Construction and Skilled Trades Selection System (CAST) to evaluate candidates for skilled utility positions across blueprint reading, mechanical concepts, safety compliance, and metering operations.

110

Questions

90 min

Time Limit

70%

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