CPT Safety Protocols & Hazard Management 2 — Questions and Answers
Question 1: Which OSHA standard specifically governs Process Safety Management (PSM) for highly hazardous chemicals?
- 29 CFR 1910.119 (Correct answer)
- 29 CFR 1910.147
- 29 CFR 1910.120
- 29 CFR 1910.134
Correct answer: 29 CFR 1910.119
29 CFR 1910.119 is OSHA's PSM standard that applies to processes with highly hazardous chemicals above threshold quantities.
Question 2: A process technician notices a strong hydrocarbon odor near a pump. What is the FIRST action to take?
- Notify the supervisor and evacuate the area (Correct answer)
- Attempt to locate the leak source immediately
- Continue working and report it at shift end
- Turn off the pump using the local switch
Correct answer: Notify the supervisor and evacuate the area
The first action is to notify the supervisor and evacuate, as unidentified hydrocarbon leaks can ignite or displace oxygen.
Question 3: What does the term 'consequence analysis' mean in process hazard management?
- Evaluating the potential outcomes if a hazard scenario occurs (Correct answer)
- Counting the number of incidents in a given period
- Analyzing the root cause of a previous accident
- Calculating the probability that a failure will happen
Correct answer: Evaluating the potential outcomes if a hazard scenario occurs
Consequence analysis assesses what would happen — injury, damage, or environmental impact — if a specific hazard scenario were to occur.
Question 4: Which fire class designation applies to fires involving flammable liquids such as gasoline or oil?
- Class B (Correct answer)
- Class A
- Class C
- Class D
Correct answer: Class B
Class B fires involve flammable liquids and are commonly encountered in process plant environments.
Question 5: In a permit-to-work system, who is responsible for verifying that all safety conditions are met before signing the permit?
- The issuing authority / area supervisor (Correct answer)
- The contractor performing the work
- The safety department auditor
- The plant manager
Correct answer: The issuing authority / area supervisor
The issuing authority, typically the area supervisor, is responsible for confirming all precautions are in place before authorizing the permit.
Question 6: What is the primary purpose of a Safety Integrity Level (SIL) rating for instrumented safety functions?
- To quantify the risk reduction provided by a safety instrumented function (Correct answer)
- To rank personal protective equipment effectiveness
- To categorize the severity of chemical burns
- To measure the response time of emergency services
Correct answer: To quantify the risk reduction provided by a safety instrumented function
SIL ratings (1–4) express the probability of failure on demand for safety instrumented functions, guiding the required reliability level.
Question 7: When using a self-contained breathing apparatus (SCBA), what minimum oxygen concentration in the cylinder is typically required before entry into an IDLH atmosphere?
- Above the minimum safe-use pressure specified by the manufacturer (Correct answer)
- At least 50% of full cylinder pressure
- Any pressure, as long as entry is brief
- 100% full — no partial cylinders permitted
Correct answer: Above the minimum safe-use pressure specified by the manufacturer
SCBA cylinders must meet the manufacturer's minimum safe-use pressure to ensure enough air for the task duration plus escape.
CPT Safety Protocols & Hazard Management 2
Which OSHA standard specifically governs Process Safety Management (PSM) for highly hazardous chemicals?