ESC Electrical Hazard Identification & Risk Assessment 3

Question 1

When assessing the risk of electrical shock, which body path is considered the MOST dangerous?

Accepted Answer

Hand to hand

Answer

A hand-to-hand current path passes through the chest and heart, making it the most likely to cause ventricular fibrillation and cardiac arrest.

Question 2

What does a Category 2 (CAT II) rating on a multimeter indicate?

Accepted Answer

It is rated for single-phase receptacle-connected loads

Answer

CAT II-rated meters are designed for use on single-phase receptacle-connected loads, such as household appliances and portable tools.

Question 3

Which of the following BEST describes an 'electrically safe work condition'?

Accepted Answer

All hazardous energy has been isolated, locked out, and verified absent

Answer

An electrically safe work condition is achieved only when all energy sources are isolated, locked or tagged out, and the absence of voltage is verified.

Question 4

A ground fault occurs when:

Accepted Answer

Current flows through an unintended path to ground

Answer

A ground fault happens when electrical current diverts from its intended path and flows through an unintended conductor or path to ground.

Question 5

Incident energy in an arc flash hazard analysis is measured in:

Accepted Answer

Calories per centimeter squared (cal/cm²)

Answer

Incident energy is expressed in cal/cm² to quantify the thermal energy a worker at a given distance could receive during an arc flash event.

(ESC) Electrical Safety Certification Practice Test

(ESC) Electrical Safety Certification Practice Test

ESC Electrical Hazard Identification & Risk Assessment 3