CRST Safety Procedures & Environmental Regulations 5

Question 1

Which OSHA standard specifically governs process safety management (PSM) for facilities using large quantities of ammonia refrigerant?

Accepted Answer

OSHA 29 CFR 1910.119

Answer

OSHA's PSM standard (29 CFR 1910.119) applies to facilities with 10,000 pounds or more of ammonia, requiring formal safety management programs.

Question 2

What is the correct response when a refrigerant electronic leak detector alarms in a mechanical room?

Accepted Answer

Immediately evacuate personnel, ventilate, and investigate per emergency procedures

Answer

An alarming leak detector requires immediate evacuation of personnel, activation of ventilation, and investigation following the facility's emergency response procedures.

Question 3

What refrigerant recovery requirement applies to small appliances (systems containing 5 pounds or less of refrigerant)?

Accepted Answer

Recovery using self-contained recovery equipment to EPA standards

Answer

Small appliances require refrigerant recovery using EPA-approved self-contained recovery equipment, though specific vacuum levels differ from larger systems.

Question 4

When performing lockout/tagout (LOTO) on a refrigeration system, which energy sources must be controlled?

Accepted Answer

All energy sources including electrical, pressure, thermal, and gravitational

Answer

OSHA's LOTO standard requires isolation and control of all hazardous energy sources, including electrical, pneumatic, hydraulic, thermal, chemical, and gravitational energy.

Question 5

What is the EPA's requirement regarding the sale of refrigerant to uncertified individuals?

Accepted Answer

Only refrigerant in containers of 2 pounds or less may be sold without certification verification

Answer

EPA Section 608 allows refrigerant in containers of 2 pounds or less to be sold without certification, but containers larger than 2 pounds require buyer certification.

(CRST) Certified Refrigeration Service Technician Practice Test

(CRST) Certified Refrigeration Service Technician Practice Test

CRST Safety Procedures & Environmental Regulations 5