Safety Procedures & Environmental Regulations Flashcards
7 cards from real CRST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety Procedures & Environmental Regulations flashcards as text
Which OSHA standard specifically governs process safety management (PSM) for facilities using large quantities of ammonia refrigerant?
Answer: OSHA 29 CFR 1910.119
OSHA's PSM standard (29 CFR 1910.119) applies to facilities with 10,000 pounds or more of ammonia, requiring formal safety management programs.
What is the correct response when a refrigerant electronic leak detector alarms in a mechanical room?
Answer: Immediately evacuate personnel, ventilate, and investigate per emergency procedures
An alarming leak detector requires immediate evacuation of personnel, activation of ventilation, and investigation following the facility's emergency response procedures.
What refrigerant recovery requirement applies to small appliances (systems containing 5 pounds or less of refrigerant)?
Answer: Recovery using self-contained recovery equipment to EPA standards
Small appliances require refrigerant recovery using EPA-approved self-contained recovery equipment, though specific vacuum levels differ from larger systems.
When performing lockout/tagout (LOTO) on a refrigeration system, which energy sources must be controlled?
Answer: All energy sources including electrical, pressure, thermal, and gravitational
OSHA's LOTO standard requires isolation and control of all hazardous energy sources, including electrical, pneumatic, hydraulic, thermal, chemical, and gravitational energy.
What is the EPA's requirement regarding the sale of refrigerant to uncertified individuals?
Answer: Only refrigerant in containers of 2 pounds or less may be sold without certification verification
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.
A technician is replacing a compressor on an R-410A system. Which recovery equipment pressure rating is required for this refrigerant?
Answer: High-pressure recovery equipment rated to at least 800 psig
R-410A operates at significantly higher pressures than older refrigerants, requiring recovery equipment rated for high-pressure service (typically 800 psig or higher).
Under EPA's refrigerant management regulations, what must a technician do if a system they serviced leaks again within 30 days of repair?
Answer: Conduct another repair attempt and document the second repair
If a repaired system leaks again within 30 days, technicians must perform another repair and maintain documentation showing continued good-faith efforts at compliance.