Licensed Electrical Contractor FREE Licensed Electrical Contractor Safety and OSHA Regulations Questions and Answers 3

Question 1

What is the OSHA-required frequency for inspecting portable electrical equipment on construction sites?

Accepted Answer

Before each use

Answer

Weekly

Answer

Monthly

Answer

Quarterly

Question 2

Under OSHA standards, what type of GFCI protection is required for temporary wiring on construction sites?

Accepted Answer

All 120V, single-phase, 15 and 20 ampere receptacles must have GFCI protection

Answer

Only receptacles in wet locations need GFCI

Answer

GFCI is optional if an assured equipment grounding program is used alone

Answer

Only 240V circuits require GFCI

Question 3

What is the maximum allowable ground-fault current leakage for a Class A GFCI device?

Accepted Answer

5 milliamps

Answer

10 milliamps

Answer

15 milliamps

Answer

30 milliamps

Question 4

According to OSHA, which of the following is a requirement for electrical safety training of employees?

Accepted Answer

Training must be provided for employees who face a risk of electrical shock not reduced to a safe level by installation requirements

Answer

Only licensed electricians need formal training

Answer

Training is only required for supervisors

Answer

Training is optional if proper PPE is provided

Question 5

What is the OSHA requirement for marking the disconnecting means for electrical service equipment?

Accepted Answer

It must be legibly marked to indicate its purpose unless the purpose is evident

Answer

Marking is optional for residential installations

Answer

Only the main breaker needs to be marked

Answer

Color coding alone is sufficient

Question 6

Under OSHA's electrical safety standards, what is an arc flash boundary?

Accepted Answer

The distance from exposed energized conductors where a person could receive a second-degree burn

Answer

The distance at which voltage can be detected

Answer

The minimum clearance for installing electrical panels

Answer

The radius around a transformer requiring fencing