DCI Job Site Safety Practices 2 — Questions and Answers
Question 1: When working in a ceiling plenum space, which respiratory hazard is MOST commonly encountered by data cabling installers?
- Carbon monoxide from HVAC equipment
- Fiberglass particles from insulation and old cable jackets (Correct answer)
- Radon gas seeping from concrete
- Chlorine fumes from cleaning products
Correct answer: Fiberglass particles from insulation and old cable jackets
Plenum spaces often contain fiberglass insulation and older cable jackets that release irritating particles when disturbed.
Question 2: A data cabling technician notices a wet floor near a server rack during installation. What is the FIRST action to take?
- Continue working but avoid the wet area
- Report the hazard and place wet floor signs before proceeding (Correct answer)
- Dry the floor with available rags and keep working
- Disconnect all power in the building immediately
Correct answer: Report the hazard and place wet floor signs before proceeding
Slip hazards must be identified, marked, and reported before work continues to protect all workers in the area.
Question 3: What does the term 'lockout/tagout' (LOTO) primarily protect against during cabling work near electrical panels?
- Unauthorized access to the job site
- Accidental energization of electrical circuits while workers are present (Correct answer)
- Theft of tools and equipment
- Data breaches on the customer's network
Correct answer: Accidental energization of electrical circuits while workers are present
LOTO procedures prevent equipment from being accidentally energized while technicians are working on or near electrical systems.
Question 4: Which fall protection measure is required when working on a ladder that extends more than 4 feet above a lower level?
- A hard hat must be worn
- A spotter must hold the base of the ladder at all times
- The ladder must be secured at the top or bottom to prevent movement (Correct answer)
- Non-slip shoes are sufficient fall protection
Correct answer: The ladder must be secured at the top or bottom to prevent movement
OSHA requires ladders to be secured at the top, bottom, or both to prevent slipping or tipping when extended above 4 feet.
Question 5: When drilling through fire-rated walls for cable pathways, which safety step is MANDATORY after completing the penetration?
- Apply duct tape over the hole temporarily
- Fill the penetration with listed firestop material (Correct answer)
- Label both sides of the wall with the drill date
- Install a conduit sleeve regardless of cable count
Correct answer: Fill the penetration with listed firestop material
Fire-rated assemblies must be restored with listed firestop materials to maintain their fire-resistance rating after any penetration.
Question 6: A cabling installer is asked to work in a room where the temperature exceeds 95°F (35°C) due to server heat loads. Which heat illness symptom requires IMMEDIATE evacuation?
- Mild sweating and thirst
- Confusion, slurred speech, or loss of consciousness (Correct answer)
- Skin redness from the heat
- Increased heart rate and mild fatigue
Correct answer: Confusion, slurred speech, or loss of consciousness
Confusion, slurred speech, and loss of consciousness are signs of heat stroke, a life-threatening emergency requiring immediate action.
Question 7: What is the correct way to dispose of old coaxial cable with a polyvinyl chloride (PVC) jacket on a job site?
- Burn it on-site to reduce volume
- Place it in standard trash bins since it is non-hazardous
- Coil and label it for recycling or proper waste disposal per local regulations (Correct answer)
- Bury it in the ground away from structures
Correct answer: Coil and label it for recycling or proper waste disposal per local regulations
PVC cable should be coiled, labeled, and disposed of through proper recycling or waste channels per local environmental regulations.
DCI Job Site Safety Practices 2
When working in a ceiling plenum space, which respiratory hazard is MOST commonly encountered by data cabling installers?