CMRT Maintenance Safety Procedures 3

Question 1

An arc flash hazard analysis determines an incident energy level of 8 cal/cm² at the working distance. What minimum arc flash PPE category is required per NFPA 70E?

Accepted Answer

PPE Category 2 (minimum 8 cal/cm² arc rating)

Answer

PPE Category 2 has a minimum arc rating of 8 cal/cm², which exactly meets the incident energy level of 8 cal/cm² and is therefore the minimum required category.

Question 2

Under OSHA 29 CFR 1910.132, who is responsible for providing PPE to employees at no cost when it is required for safety?

Accepted Answer

The employer, except for everyday clothing and items the employee controls away from work

Answer

OSHA requires employers to provide required PPE at no cost to employees, with limited exceptions for items like ordinary safety-toe footwear used away from the workplace.

Question 3

What does the Safety Data Sheet (SDS) Section 8 provide that is most directly useful to a maintenance technician handling a chemical?

Accepted Answer

Exposure limits and required engineering controls and PPE

Answer

SDS Section 8 (Exposure Controls/Personal Protection) specifies permissible exposure limits, threshold limit values, and the controls and PPE needed to protect workers.

Question 4

A fall protection plan is required under OSHA for general industry maintenance work when a worker is exposed to a fall of:

Accepted Answer

6 feet or more to a lower level

Answer

OSHA 29 CFR 1910.28 requires fall protection for general industry workers whenever they are exposed to a fall of 4 feet or more, except walking-working surfaces where the 4-foot trigger applies.

Question 5

Which type of respirator protection is appropriate when the oxygen content of the atmosphere is unknown or below 19.5%?

Accepted Answer

A self-contained breathing apparatus (SCBA) or supplied-air respirator

Answer

Air-purifying respirators cannot be used in oxygen-deficient atmospheres; only atmosphere-supplying respirators (SCBA or supplied-air) provide breathable air independent of the ambient atmosphere.

(CMRT) Certified Maintenance and Reliability Technician Practice Test

(CMRT) Certified Maintenance and Reliability Technician Practice Test

CMRT Maintenance Safety Procedures 3