OSHA OSHA - Safety Certificate Electrical Safety Standards Questions and Answers 2

Question 1

What is the minimum approach distance for an unqualified worker near exposed energized parts operating at 50 kV?

Accepted Answer

10 feet

Answer

OSHA 29 CFR 1926.416 requires unqualified workers to maintain at least 10 feet from overhead power lines energized at 50 kV or below.

Question 2

Under OSHA's Lockout/Tagout standard, what must be done BEFORE servicing equipment that has stored electrical energy in capacitors?

Accepted Answer

The stored energy must be dissipated or restrained before servicing begins

Answer

OSHA 29 CFR 1910.147 requires that all potentially hazardous stored energy, including charged capacitors, be relieved or restrained before any servicing work begins.

Question 3

Which OSHA standard specifically addresses electrical safety requirements for construction work?

Accepted Answer

29 CFR 1926 Subpart K

Answer

29 CFR 1926 Subpart K covers electrical safety standards specifically applicable to construction industry workplaces.

Question 4

What color is the standard insulation for a grounding conductor according to OSHA and NEC requirements?

Accepted Answer

Green or green with yellow stripes

Answer

OSHA and NEC standards require grounding conductors to be identified by green insulation or green with yellow stripes.

Question 5

According to OSHA, what is the primary purpose of Ground Fault Circuit Interrupters (GFCIs) on construction sites?

Accepted Answer

To protect workers from electrocution caused by ground faults

Answer

GFCIs are required on construction sites primarily to protect employees from electrocution by detecting imbalances in current flow caused by ground faults.

OSHA Safety Certificate Practice Test

OSHA Safety Certificate Practice Test

OSHA OSHA - Safety Certificate Electrical Safety Standards Questions and Answers 2