AEP Tools & Equipment Operation 3 — Questions and Answers
Question 1: When operating a digger derrick near overhead energized lines, the minimum approach distance for the boom must comply with which standard?
- OSHA 29 CFR 1910.333 Table S-5
- OSHA 29 CFR 1926.1408 and NESC approach tables (Correct answer)
- NFPA 70E arc flash boundary only
- ANSI Z10 ergonomic guidelines
Correct answer: OSHA 29 CFR 1926.1408 and NESC approach tables
OSHA 1926.1408 governs crane/derrick operations near power lines and references NESC minimum approach distances for qualified workers.
Question 2: A strap wrench is preferred over a pipe wrench when working on certain transformer bushings because it:
- Applies higher torque than a pipe wrench
- Grips without leaving jaw marks on porcelain or polished fittings (Correct answer)
- Is lighter and easier to carry up a pole
- Can be used in energized environments without insulation
Correct answer: Grips without leaving jaw marks on porcelain or polished fittings
A strap wrench's fabric strap distributes force evenly, preventing damage to porcelain bushings or chrome-plated fittings that pipe jaws would scar.
Question 3: Before using a chain saw for vegetation management on a right-of-way, AEP safety procedures require the operator to:
- Disable the chain brake to speed up cutting
- Inspect the chain tension, bar lubrication, and all safety guards (Correct answer)
- Remove the anti-kickback tip guard for clearance cutting
- Set the throttle lock to wide-open position
Correct answer: Inspect the chain tension, bar lubrication, and all safety guards
Pre-use inspection of chain tension, bar oil level, and operational guards ensures the saw functions safely and reduces kickback risk.
Question 4: What type of fire extinguisher is approved for use on energized electrical equipment at an AEP substation?
- Class A water extinguisher
- Class B CO2 or dry chemical (Class C rated) (Correct answer)
- Class K wet-chemical extinguisher
- Class A foam extinguisher
Correct answer: Class B CO2 or dry chemical (Class C rated)
Class C ratings on CO2 or dry chemical extinguishers indicate the agent is non-conductive and safe for energized electrical fires.
Question 5: A cable puller's tension gauge reads 8,000 lbs while pulling a cable rated for 5,000 lbs maximum pulling tension. The lineman should:
- Continue pulling since the puller has a higher capacity
- Stop immediately, release tension, and reassess the pull setup (Correct answer)
- Increase speed to minimize time under excess tension
- Add cable lubricant and resume pulling
Correct answer: Stop immediately, release tension, and reassess the pull setup
Exceeding the cable's rated pulling tension can damage the conductor or insulation; work must stop and the setup must be re-evaluated.
Question 6: When using a torque wrench to tighten a transformer bushing connector, the torque should be applied:
- Until the wrench handle clicks or the indicator reaches the specified value (Correct answer)
- Until the bolt can no longer be turned by hand
- At maximum torque to ensure the connector never loosens
- By feel, stopping when resistance increases sharply
Correct answer: Until the wrench handle clicks or the indicator reaches the specified value
A torque wrench click or indicator reaching the set value signals the specified torque has been achieved, preventing under- or over-tightening.
Question 7: Aerial lift platforms used by AEP must have their insulating boom sections tested at which interval to maintain certification?
- Every 5 years regardless of use
- Annually or after any damage, whichever comes first (Correct answer)
- Only when the equipment fails a visual inspection
- Every 10,000 operating hours
Correct answer: Annually or after any damage, whichever comes first
ANSI A92.2 and OSHA require annual dielectric testing of aerial lift booms, with additional testing after any event that may have compromised insulation.
AEP Tools & Equipment Operation 3
When operating a digger derrick near overhead energized lines, the minimum approach distance for the boom must comply with which standard?