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 1 (minimum 4 cal/cm² arc rating)

Answer

PPE Category 3 (minimum 25 cal/cm² arc rating)

Answer

PPE Category 4 (minimum 40 cal/cm² arc rating)

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

The employee, since PPE is considered personal property

Answer

The equipment manufacturer, as part of the equipment's safe-use requirements

Answer

The insurance carrier covering 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

First aid measures and emergency response procedures

Answer

Physical and chemical properties such as boiling point and vapor pressure

Answer

Regulatory compliance information and transportation requirements

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

4 feet or more to a lower level

Answer

8 feet or more to a lower level

Answer

10 feet or more to a lower level

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

A half-face air-purifying respirator with combination cartridges

Answer

A powered air-purifying respirator (PAPR) with HEPA filters

Answer

A dust mask rated N95 or higher

Question 6

During a maintenance task, a technician must work on a hydraulic system that stores energy in an accumulator. According to LOTO procedures, the accumulator energy must be:

Accepted Answer

Isolated and bled down to zero energy before work proceeds

Answer

Labeled with a caution tag indicating stored pressure

Answer

Monitored with a pressure gauge throughout the task

Answer

Reduced to 50% of operating pressure as an acceptable safe level

Question 7

What is the correct sequence for donning and doffing PPE to minimize self-contamination when working with hazardous chemicals?

Accepted Answer

Don from innermost to outermost layers; doff from outermost to innermost layers

Answer

Don outer gloves last; doff inner gloves last

Answer

Don from most contaminated layer inward; doff from least contaminated layer outward

Answer

The sequence does not matter as long as all PPE is worn and removed in a clean area