G60 Industrial Safety Protocols and Risk Assessment 3 — Questions and Answers
Question 1: A torch operator notices a co-worker has bypassed a pressure regulator safety relief valve. What is the correct response?
- Continue work since the co-worker is experienced
- Stop operations and report the unsafe condition immediately (Correct answer)
- Reduce operating pressure to compensate
- Cover the valve with insulating tape to prevent leaks
Correct answer: Stop operations and report the unsafe condition immediately
Bypassing safety relief valves creates an uncontrolled overpressure risk and must be reported and corrected before work continues.
Question 2: Before torch work is performed on or near a previously used fuel tank, what is the required safety step?
- Paint the exterior with fire-retardant coating
- Test, purge, and certify the tank free of flammable vapors (Correct answer)
- Seal all openings with non-sparking plugs
- Cool the tank with water for at least 30 minutes
Correct answer: Test, purge, and certify the tank free of flammable vapors
Tanks that have held flammable materials must be tested, purged, and certified vapor-free before any hot work to prevent explosion.
Question 3: What is the primary purpose of a pre-task safety briefing (toolbox talk) before torch operations?
- To document billable labor hours
- To communicate hazards, controls, and emergency procedures to all workers on-site (Correct answer)
- To satisfy OSHA recordkeeping requirements only
- To assign blame for prior incidents
Correct answer: To communicate hazards, controls, and emergency procedures to all workers on-site
Toolbox talks ensure every worker understands the specific hazards and controls before work begins, reducing the risk of incidents.
Question 4: Which factor makes a risk HIGH priority requiring immediate corrective action on a standard risk matrix?
- Low likelihood combined with low severity
- High likelihood combined with high severity (Correct answer)
- Low likelihood combined with moderate severity
- Moderate likelihood combined with negligible severity
Correct answer: High likelihood combined with high severity
High likelihood plus high severity produces the highest risk score, requiring immediate action to protect workers.
Question 5: Under NFPA 51B, after hot work is completed, a fire watch must be maintained for a minimum of how long?
- 15 minutes
- 30 minutes (Correct answer)
- 1 hour
- 2 hours
Correct answer: 30 minutes
NFPA 51B requires a minimum 30-minute fire watch after hot work to detect smoldering fires that may not be immediately visible.
Question 6: A Safety Data Sheet (SDS) for a flammable gas must be available to torch operators primarily to provide information about what?
- Pricing and supplier contact details
- Hazard properties, safe handling, and emergency response (Correct answer)
- Equipment warranty and service intervals
- Shipping weight and pallet configuration
Correct answer: Hazard properties, safe handling, and emergency response
The SDS communicates physical, health, and reactivity hazards along with safe handling and emergency response procedures for the gas.
Question 7: What type of control is installing a ventilation fan to dilute flammable gas concentrations in a workspace?
- Administrative control
- Personal protective equipment
- Engineering control (Correct answer)
- Elimination control
Correct answer: Engineering control
Ventilation systems are physical modifications to the work environment that reduce hazard exposure, classifying them as engineering controls.
G60 Industrial Safety Protocols and Risk Assessment 3
A torch operator notices a co-worker has bypassed a pressure regulator safety relief valve.
What is the correct response?