CHST Electrical Safety and LOTO 4

Question 1

Under OSHA 29 CFR 1910.147, which condition allows an employer to use an alternative to traditional lockout when equipment design does not allow for lockout?

Accepted Answer

A written tagout program with additional safety measures

Answer

When equipment cannot be locked out, OSHA allows tagout if the employer demonstrates equivalent protection through additional safety measures documented in a written program.

Question 2

A construction worker discovers a frayed extension cord on a jobsite. What is the most appropriate immediate action?

Accepted Answer

Remove the cord from service and tag it out of service

Answer

Damaged extension cords must be immediately removed from service and tagged to prevent use until repaired or replaced.

Question 3

What is the minimum approach distance for unqualified workers near overhead power lines energized at 50 kV or less on a construction site?

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 less.

Question 4

During a group lockout procedure, each authorized employee must:

Accepted Answer

Apply their own personal lock to the group lockout hasp

Answer

In group LOTO, each authorized employee applies their own personal lock to a hasp so no one can restore energy until all workers have removed their locks.

Question 5

Which class of fire extinguisher is specifically rated for energized electrical equipment fires?

Accepted Answer

Class C

Answer

Class C extinguishers use non-conductive agents and are rated for fires involving energized electrical equipment.

CHST - Construction Health and Safety Technician Practice Test

CHST - Construction Health and Safety Technician Practice Test

CHST Electrical Safety and LOTO 4