ALC Safety Protocols & Emergency Procedures 5 — Questions and Answers
Question 1: Why should at least one trained person on the ground know where the ground controls are and how to use them?
- To raise the platform faster
- To lower the platform if the occupants can't do it themselves (Correct answer)
- To refuel the machine while it is operating
- To override the load sensor
Correct answer: To lower the platform if the occupants can't do it themselves
A trained ground person can bring the platform down if the occupant is incapacitated or the platform controls fail.
Question 2: What does pressing the emergency stop button on an aerial lift do?
- Lowers the platform automatically
- Stops all powered machine functions (Correct answer)
- Sounds the horn only
- Locks the steering
Correct answer: Stops all powered machine functions
The emergency stop cuts power to all machine functions at once.
Question 3: Before driving with the platform elevated, what must the operator check along the travel path?
- Only overhead clearance
- Holes, drop-offs, debris, and soft or uneven ground (Correct answer)
- The radio signal strength
- The paint condition of the chassis
Correct answer: Holes, drop-offs, debris, and soft or uneven ground
Ground hazards can tip an elevated machine, so the travel path must be firm, level, and clear.
Question 4: What must be done with a shock-absorbing lanyard and harness after they have arrested a fall?
- Wash them and reuse them
- Remove them from service until a competent person inspects them or they are destroyed (Correct answer)
- Retighten the straps
- Use them only for restraint afterward
Correct answer: Remove them from service until a competent person inspects them or they are destroyed
Fall arrest equipment that has taken a fall load may be damaged and must be removed from service.
Question 5: What is the purpose of suspension trauma relief straps on a harness?
- To attach tools
- To let a suspended worker stand in the straps and relieve pressure on the legs (Correct answer)
- To shorten the lanyard
- To connect to the guardrail
Correct answer: To let a suspended worker stand in the straps and relieve pressure on the legs
Relief straps let a suspended worker push with their legs, which improves circulation while waiting for rescue.
Question 6: Which practice is correct when refueling an engine-powered aerial lift?
- Refuel while the engine is running
- Shut off the engine, lower the platform, and keep ignition sources away (Correct answer)
- Refuel with the platform fully raised
- Smoke only at a distance of 5 feet
Correct answer: Shut off the engine, lower the platform, and keep ignition sources away
Engine-off refueling with no ignition sources nearby prevents fuel fires.
Question 7: While the platform is elevated, wind gusts rise above the manufacturer's rated limit. What should the operator do?
- Hold a large panel to block the wind
- Stop work and lower the platform right away (Correct answer)
- Extend the boom to its full length
- Keep working but move more slowly
Correct answer: Stop work and lower the platform right away
Wind above the rated limit can overturn the machine, so the platform must come down immediately.
ALC Safety Protocols & Emergency Procedures 5
Why should at least one trained person on the ground know where the ground controls are and how to use them?