CWLP Warehouse Safety & Hazardous Materials Handling 4 — Questions and Answers
Question 1: Which OSHA standard requires warehouses to maintain written emergency action plans (EAPs) when they have 10 or more employees?
- 29 CFR 1910.1200
- 29 CFR 1910.38 (Correct answer)
- 29 CFR 1910.119
- 29 CFR 1910.147
Correct answer: 29 CFR 1910.38
29 CFR 1910.38 mandates written Emergency Action Plans for workplaces with 10 or more employees, covering evacuation routes and procedures.
Question 2: A warehouse receives a shipment labeled with UN3077. What hazard class does this UN number represent?
- Flammable liquid
- Environmentally hazardous substance, solid (Correct answer)
- Toxic gas
- Oxidizer
Correct answer: Environmentally hazardous substance, solid
UN3077 is the UN number for Environmentally Hazardous Substance, Solid, n.o.s., indicating a material harmful to the aquatic environment.
Question 3: What is the correct action when a forklift operator notices a gas odor near a compressed gas cylinder storage area?
- Continue working and report at the end of the shift
- Immediately shut down the forklift and evacuate the area (Correct answer)
- Light a match to identify if gas is present
- Increase ventilation by opening all bay doors before investigating
Correct answer: Immediately shut down the forklift and evacuate the area
A gas odor indicates a potential leak; operators must shut down equipment (which can spark ignition) and evacuate immediately.
Question 4: Under the EPA's EPCRA Section 302, facilities must notify the Local Emergency Planning Committee (LEPC) when they store Extremely Hazardous Substances (EHS) above what threshold?
- Reportable Quantity (RQ)
- Threshold Planning Quantity (TPQ) (Correct answer)
- Permissible Exposure Limit (PEL)
- Time-Weighted Average (TWA)
Correct answer: Threshold Planning Quantity (TPQ)
EPCRA Section 302 requires facilities to notify their LEPC when EHS quantities exceed the Threshold Planning Quantity (TPQ) for that substance.
Question 5: Which label element is NOT required on a GHS-compliant workplace label under OSHA's HazCom 2012?
- Signal word
- Hazard statements
- Manufacturer's batch number (Correct answer)
- Precautionary statements
Correct answer: Manufacturer's batch number
GHS workplace labels require product identifier, signal word, hazard/precautionary statements, and pictograms, but not the batch number.
Question 6: What is the minimum aisle width required by OSHA for warehouses where forklifts are used to pick up loads from both sides?
- At least the width of the widest vehicle
- At least the width of the widest vehicle plus 3 feet on each side (Correct answer)
- A fixed minimum of 8 feet
- A fixed minimum of 12 feet
Correct answer: At least the width of the widest vehicle plus 3 feet on each side
OSHA requires aisles where forklifts operate to be at least the width of the widest vehicle plus 3 feet on each side for safe clearance.
Question 7: When using a chemical fume hood to handle volatile hazardous materials in a warehouse lab area, the face velocity should typically be maintained at:
- 25–50 linear feet per minute
- 60–100 linear feet per minute (Correct answer)
- 150–200 linear feet per minute
- Over 200 linear feet per minute
Correct answer: 60–100 linear feet per minute
A face velocity of 60–100 linear feet per minute is the standard range to contain chemical vapors without creating turbulence that reduces containment.
Which OSHA standard requires warehouses to maintain written emergency action plans (EAPs) when they have 10 or more employees?