Licensed Electrical Contractor OSHA Safety Standards Questions and Answers

Question 1

An electrician is preparing to perform maintenance on a permanently installed industrial machine.
After shutting down the equipment using the normal stopping procedure, what is the next critical step required by the OSHA Lockout/Tagout standard (29 CFR 1910.147) before applying a lock?

Accepted Answer

Locate and operate the energy isolating device(s) to isolate the machine from its energy source.

Answer

Verbally inform all coworkers in the immediate area.

Answer

Test the machine's start button to ensure it doesn't operate.

Answer

Immediately attach a personal lock to the main control panel.

Question 2

On a construction site, an electrical contractor opts to implement an Assured Equipment Grounding Conductor Program (AEGCP) as an alternative to using GFCIs. According to OSHA 29 CFR 1926.404, which of the following is a mandatory component of this program?

Accepted Answer

A written description of the program must be kept at the jobsite, and specific equipment tests must be performed at regular intervals.

Answer

All cord sets and receptacles must be visually inspected weekly by a designated safety officer.

Answer

All employees must receive specialized training on GFCI operation and theory.

Answer

The jobsite superintendent must personally test every tool each morning before use.

Question 3

According to OSHA 29 CFR 1926.416, work on or near energized electrical circuits is generally prohibited. Energized work is only permitted under specific conditions, such as when:

Accepted Answer

de-energizing the circuit is infeasible or would introduce additional or increased hazards.

Answer

the project is behind schedule and de-energizing would cause a significant delay.

Answer

the qualified electrician has over 20 years of experience with similar systems.

Answer

the work is considered minor, such as replacing a single receptacle or switch.

Question 4

An electrical contractor is tasked with running conduit on the exterior of a building, and a 25 kV overhead power line is present. According to OSHA's standards for equipment operation near power lines (29 CFR 1926.1408), what is the mandatory minimum approach distance that must be maintained from the line?

Accepted Answer

10 feet

Answer

5 feet

Answer

20 feet

Answer

15 feet

Question 5

An electrician is using an 8-foot A-frame stepladder to install a smoke detector. According to OSHA safety standards for ladders (29 CFR 1926 Subpart X), which of the following actions is a direct violation?

Accepted Answer

Standing on the ladder's top step to reach the ceiling.

Answer

Facing the ladder while climbing and descending.

Answer

Placing the ladder on a level, stable concrete floor.

Answer

Maintaining three points of contact while climbing.

Question 6

An electrical contractor's crew must enter a trench that is 7 feet deep to install underground conduit. Per OSHA standards for excavations (29 CFR 1926 Subpart P), what is the primary requirement that must be met before any worker enters the trench?

Accepted Answer

A competent person must inspect the trench and the protective systems and deem it safe for entry.

Answer

The spoil pile must be placed at least 1 foot from the edge of the trench.

Answer

A means of egress, such as a ladder, must be located within the trench.

Answer

The atmosphere within the trench must be tested for oxygen deficiency.