Energy and Utilities Electricity Generation and Distribution 2 — Questions and Answers
Question 1: What is a smart grid primarily designed to do?
- Generate more electricity
- Use digital technology to improve efficiency and reliability (Correct answer)
- Replace all coal plants
- Eliminate the need for transformers
Correct answer: Use digital technology to improve efficiency and reliability
Smart grids integrate digital communication and automation to optimize electricity delivery and enable two-way energy flow.
Question 2: Which component protects electrical circuits from overloads in a home panel?
- Capacitor
- Resistor
- Circuit breaker (Correct answer)
- Inductor
Correct answer: Circuit breaker
Circuit breakers automatically interrupt current flow when it exceeds safe levels, protecting wiring and devices.
Question 3: What does 'spinning reserve' mean in grid operations?
- Wind turbines on standby
- Generators running but not fully loaded, ready to ramp up quickly (Correct answer)
- Stored hydroelectric water
- Extra transmission lines
Correct answer: Generators running but not fully loaded, ready to ramp up quickly
Spinning reserve is generation capacity that is synchronized to the grid and can respond within seconds to sudden demand increases.
Question 4: Which organization sets mandatory reliability standards for the North American bulk power system?
- FERC
- NERC (Correct answer)
- EIA
- ISO-NE
Correct answer: NERC
The North American Electric Reliability Corporation (NERC) develops and enforces reliability standards for the bulk electric system.
Question 5: What is the purpose of a substation in the electrical grid?
- To generate power from natural gas
- To transform, switch, and protect voltage levels between transmission and distribution (Correct answer)
- To store excess electricity
- To meter customer usage
Correct answer: To transform, switch, and protect voltage levels between transmission and distribution
Substations contain transformers, switches, and protective equipment to safely transfer power between voltage levels.
Question 6: What does 'demand response' allow electric utilities to do?
- Increase generation capacity instantly
- Incentivize customers to reduce load during peak periods (Correct answer)
- Automatically repair outages
- Store electricity underground
Correct answer: Incentivize customers to reduce load during peak periods
Demand response programs compensate customers for voluntarily reducing electricity use when grid demand is high.
Energy and Utilities Electricity Generation and Distribution 2
What is a smart grid primarily designed to do?