DCI Safety Practices & Procedures 3 — Questions and Answers
Question 1: Which ANSI/ISEA standard governs the selection of protective eyewear for cable installation work?
- ANSI Z87.1 (Correct answer)
- ANSI Z89.1
- ANSI Z41.1
- ANSI Z359.1
Correct answer: ANSI Z87.1
ANSI Z87.1 is the standard for occupational and educational personal eye and face protection devices.
Question 2: When working on a ladder near energized electrical panels, which type of ladder is safest?
- Aluminum extension ladder
- Steel step ladder
- Fiberglass ladder (Correct answer)
- Wooden ladder with metal bracing
Correct answer: Fiberglass ladder
Fiberglass ladders are non-conductive and are the safest choice when working near electrical hazards.
Question 3: A lockout/tagout procedure requires an installer to verify isolation. After locking out the energy source, what is the next step?
- Begin work immediately
- Notify the building owner
- Attempt to operate the equipment to verify it is de-energized (Correct answer)
- Apply additional locks for each worker on the job
Correct answer: Attempt to operate the equipment to verify it is de-energized
After applying lockout devices, OSHA requires verifying that energy isolation is effective by attempting to operate the equipment.
Question 4: What is the primary purpose of a spotter when a cable installer is working from an aerial lift?
- To hold tools and materials
- To watch for overhead power lines and ground-level hazards (Correct answer)
- To operate the lift controls from below
- To maintain radio communication with the office
Correct answer: To watch for overhead power lines and ground-level hazards
A spotter's primary role is to watch for hazards the operator cannot see, especially overhead obstructions and nearby workers.
Question 5: Cable ties are being used to bundle 25 Category 6 cables tightly together. What safety and performance concern does this create?
- Increased fire risk from static buildup
- Alien crosstalk and potential cable jacket deformation affecting performance (Correct answer)
- Violation of grounding requirements
- The bundle exceeds the allowable conduit fill ratio
Correct answer: Alien crosstalk and potential cable jacket deformation affecting performance
Over-cinching cable ties deforms cable jackets and pair geometry, increasing crosstalk and potentially degrading transmission performance.
Question 6: When trenching for outdoor cable runs, what utility notification service must be contacted before digging in the US?
- Local building department
- 811 (Call Before You Dig) (Correct answer)
- OSHA regional office
- National Electrical Code hotline
Correct answer: 811 (Call Before You Dig)
Dialing 811 activates the One Call system, which notifies utilities to mark underground lines and prevent accidental strikes.
Question 7: Which condition requires a cable installer to immediately stop work and evacuate the work area?
- A missing conduit label
- The smell of gas or detection of toxic fumes (Correct answer)
- Temporary loss of site Wi-Fi connectivity
- A supervisor being unavailable by phone
Correct answer: The smell of gas or detection of toxic fumes
Gas or toxic fume detection is a life-safety emergency requiring immediate evacuation and notification of emergency services.
DCI Safety Practices & Procedures 3
Which ANSI/ISEA standard governs the selection of protective eyewear for cable installation work?