G60 Industrial Safety Protocols and Risk Assessment 2 — Questions and Answers
Question 1: When conducting a Job Hazard Analysis (JHA) before torch operations in a confined space, what is the FIRST step?
- Identify all potential ignition sources
- Define the job steps and tasks to be performed (Correct answer)
- Distribute PPE to all workers
- Notify the fire department
Correct answer: Define the job steps and tasks to be performed
A JHA begins by breaking the job into discrete steps before hazards for each step can be identified and controlled.
Question 2: Under OSHA 29 CFR 1910.252, a hot work permit must include which of the following?
- The contractor's insurance certificate number
- The time period for which the permit is valid (Correct answer)
- A list of all employees on-site that day
- The cost estimate for the work
Correct answer: The time period for which the permit is valid
Hot work permits must specify the authorized time period so that work is not continued beyond safe, inspected conditions.
Question 3: A risk matrix is used to prioritize hazards by combining which two factors?
- Cost and duration
- Likelihood of occurrence and severity of consequence (Correct answer)
- Number of workers exposed and work location
- Regulatory penalty and corrective cost
Correct answer: Likelihood of occurrence and severity of consequence
Risk matrices plot probability against consequence severity to assign a risk level and prioritize corrective actions.
Question 4: Which hierarchy of controls level is considered MOST effective for reducing torch-related fire hazards?
- Administrative controls
- Personal protective equipment
- Elimination or substitution of the hazard (Correct answer)
- Engineering controls
Correct answer: Elimination or substitution of the hazard
Elimination removes the hazard entirely, making it the most effective control measure in the hierarchy.
Question 5: What does a Lockout/Tagout (LOTO) procedure protect against when performing torch work near machinery?
- UV radiation from the flame
- Unexpected energization or startup of equipment (Correct answer)
- Backfire pressure in the torch hose
- Combustible gas accumulation
Correct answer: Unexpected energization or startup of equipment
LOTO ensures machinery cannot be unexpectedly energized, preventing crush, cut, or burn injuries to workers using torches nearby.
Question 6: If a flammable gas concentration reading is at 25% of the Lower Explosive Limit (LEL) in a work area, what action should be taken?
- Proceed with torch work using additional PPE
- Stop all hot work and ventilate the area immediately (Correct answer)
- Reduce torch flame size and continue
- Document the reading and notify a supervisor after work is complete
Correct answer: Stop all hot work and ventilate the area immediately
Hot work must be stopped and the area ventilated any time the flammable gas concentration reaches or exceeds 10% of the LEL.
Question 7: Which document provides site-specific emergency response procedures that a torch operator must review before starting work?
- The equipment manufacturer's warranty card
- The facility's Emergency Action Plan (EAP) (Correct answer)
- The cylinder hydrostatic test record
- The operator's personal training transcript
Correct answer: The facility's Emergency Action Plan (EAP)
The Emergency Action Plan outlines evacuation routes, assembly points, and emergency contacts specific to the facility.
G60 Industrial Safety Protocols and Risk Assessment 2
When conducting a Job Hazard Analysis (JHA) before torch operations in a confined space, what is the FIRST step?