ESC Safe Work Practices & Procedures 2

Question 1

When performing electrical work in a confined space, what is the FIRST action a worker must take before entering?

Accepted Answer

Test the atmosphere for oxygen, flammable gases, and toxic contaminants

Answer

Atmospheric testing for oxygen levels, flammable gases, and toxic contaminants is mandatory before entering any confined space to prevent asphyxiation, fire, or poisoning.

Question 2

A worker needs to replace a 240V circuit breaker. Under NFPA 70E, what is the preferred safe work method?

Accepted Answer

Establish an electrically safe work condition (ESWC) by de-energizing and locking out

Answer

NFPA 70E requires establishing an electrically safe work condition through de-energization, lockout/tagout, and voltage verification before contact with electrical equipment whenever feasible.

Question 3

During a job briefing, which element is MOST critical to communicate to all workers before starting a task?

Accepted Answer

Hazards associated with the job and the safe work procedures to control them

Answer

A job briefing must cover the specific hazards of the task and the procedures to mitigate them so every worker understands the risks before work begins.

Question 4

What does the term 'two-person rule' require in high-voltage electrical work scenarios?

Accepted Answer

A qualified worker must never work alone; a second person must be present and aware

Answer

The two-person rule requires a second qualified individual to be present during high-hazard electrical tasks to provide assistance or summon help in an emergency.

Question 5

An energized electrical panel is exposed during renovation work. What immediate action should unqualified workers take?

Accepted Answer

Maintain the restricted approach boundary and notify a qualified electrician

Answer

Unqualified workers must stay outside restricted approach boundaries and alert a qualified electrical worker to address energized equipment.

(ESC) Electrical Safety Certification Practice Test

(ESC) Electrical Safety Certification Practice Test

ESC Safe Work Practices & Procedures 2