CEA Safety Standards & Regulations 3

Question 1

Which OSHA standard regulates the control of hazardous energy (lockout/tagout) for electrical equipment?

Accepted Answer

29 CFR 1910.147

Answer

29 CFR 1910.147 is OSHA's standard for the Control of Hazardous Energy, commonly known as the Lockout/Tagout standard.

Question 2

What action must be taken FIRST before applying a lockout device to electrical equipment?

Accepted Answer

Shut down the equipment using normal stopping procedures

Answer

OSHA's LOTO sequence requires shutting down the equipment through normal stopping procedures before isolating the energy source and applying lockout devices.

Question 3

Arc flash boundary distances are determined by which factor?

Accepted Answer

The incident energy level that could cause a second-degree burn at a given distance

Answer

The arc flash boundary is the distance at which incident energy equals 1.2 cal/cm², the threshold for a curable second-degree burn.

Question 4

Which regulatory body sets the minimum safe approach distances for qualified electrical workers?

Accepted Answer

OSHA and NFPA 70E

Answer

OSHA's 29 CFR 1910.333 and NFPA 70E Table 130.4 together establish minimum approach distances for shock protection.

Question 5

A 'qualified person' under OSHA 1910.399 is defined as someone who:

Accepted Answer

Has training or experience to avoid electrical hazards when working on energized equipment

Answer

OSHA defines a qualified person as one with training and/or experience that enables them to avoid the electrical hazards of working on or near exposed energized parts.

(CEA) Certified Electrical Apprentice Practice Test

(CEA) Certified Electrical Apprentice Practice Test

CEA Safety Standards & Regulations 3