CPO CPO Emergency Procedures & Incident Response 2 — Questions and Answers
Question 1: What is the correct procedure if a concrete pump engine catches fire?
- Continue pumping to use up remaining concrete
- Shut down the engine, evacuate the area, and use a fire extinguisher if safe to do so (Correct answer)
- Pour water from the hopper onto the fire
- Open the engine cover to inspect the fire source
Correct answer: Shut down the engine, evacuate the area, and use a fire extinguisher if safe to do so
On engine fire, immediately shut down, evacuate, and use a suitable extinguisher only if it is safe — otherwise wait for emergency services.
Question 2: How should an operator respond if the pump boom begins to sway or vibrate excessively during a pour?
- Ignore it and finish the pour quickly
- Stop pumping, lower the boom, and inspect for mechanical failure or excessive load (Correct answer)
- Extend the boom further to redistribute the load
- Increase engine speed to stabilize the boom
Correct answer: Stop pumping, lower the boom, and inspect for mechanical failure or excessive load
Excessive boom vibration or sway indicates potential structural fatigue, loose hardware, or overloading that must be investigated immediately.
Question 3: What should be done if a worker becomes covered in wet concrete and reports skin irritation?
- Advise them to continue working until the pour is complete
- Immediately flush affected skin with large amounts of water and seek medical attention (Correct answer)
- Apply dry concrete powder to absorb the moisture
- Scrub the affected area with a wire brush
Correct answer: Immediately flush affected skin with large amounts of water and seek medical attention
Wet concrete causes severe alkaline chemical burns; immediately flush with water and seek medical evaluation, as damage worsens with delayed treatment.
Question 4: What action should an operator take if an outrigger begins to sink or shift during pumping operations?
- Continue pumping at a reduced rate
- Immediately stop all pump and boom movement, secure the machine, and reassess ground conditions (Correct answer)
- Extend the boom to redistribute machine weight
- Add more outrigger pads while the boom is extended
Correct answer: Immediately stop all pump and boom movement, secure the machine, and reassess ground conditions
Outrigger sinking signals ground failure that could lead to tip-over; all operations must stop immediately to stabilize the machine.
Question 5: How should a concrete pump operator respond to a medical emergency involving a worker on site?
- Finish the current pour before calling for help
- Stop operations, call 911, send someone to meet emergency responders, and provide first aid if trained (Correct answer)
- Move the injured worker to the truck cab
- Resume work after administering basic first aid
Correct answer: Stop operations, call 911, send someone to meet emergency responders, and provide first aid if trained
In a medical emergency, stop all operations, immediately call 911, dispatch someone to guide responders, and provide trained first aid until EMS arrives.
Question 6: What is the safest way to handle a concrete plug (blockage) in the pipeline?
- Use maximum pump pressure to force the plug through
- Relieve pressure, locate the blockage, disassemble the line, and clear the plug manually (Correct answer)
- Reverse pump direction repeatedly at high pressure
- Add water to the hopper to thin the mix and push the plug
Correct answer: Relieve pressure, locate the blockage, disassemble the line, and clear the plug manually
Pipeline blockages must be cleared by first fully relieving pressure, then manually locating and removing the plug after safely disassembling the affected section.
CPO CPO Emergency Procedures & Incident Response 2
What is the correct procedure if a concrete pump engine catches fire?