10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
An indoor maintenance job requires a platform floor at least 24 ft high, at least 8 ft of horizontal outreach, and 450 lb of platform capacity. The access opening is 72 in wide, and the engineer limits any wheel reaction to 4,000 lb. Each electric machine otherwise suits the job; its listed height and outreach are available together at the stated capacity. Which machine meets all five requirements?
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Correct answer: C - 30-ft platform height; 12-ft outreach; 500-lb capacity; 68-in width; 3,800-lb maximum wheel reaction.
Question 2
A boom pivot's service procedure permits joint clearance up to 0.060 in. Correctly performed measurements show 0.048 in today, compared with 0.035 in at the previous inspection. The pin and retaining hardware are intact, no other defect is found, and the manufacturer specifies no separate rejection rule for this amount of change. How should the inspector handle the finding?
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Correct answer: A - Record 0.048 in as acceptable and note the increase.
Question 3
At a construction site, an operator becomes unresponsive in a truck-mounted boom platform. The truck is stable, the occupant is not trapped, no electrical hazard exists, and the lowering path is clear. Emergency medical help has been called. A trained ground responder is authorized to lower the platform under the site's rescue plan, and the lower controls work. The occupant cannot give permission. What should happen now?
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Correct answer: D - Use the lower controls to lower the platform under the rescue plan; this emergency does not require occupant permission.
Question 4
A vehicle-mounted aerial lift is rated for 300 lb in either basket and 500 lb combined, with no higher rating at shorter outreach. Each basket contains one occupant, within its occupancy limit. Including people, protective equipment, and tools, the first basket carries 275 lb and the second carries 250 lb. A removable 40-lb toolbox is in the first basket. Which loading plan is acceptable?
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Correct answer: B - Remove the toolbox from the lift; the combined basket load will be 485 lb.
Question 5
A boom lift has been removed from service after failing the manufacturer's load-holding test. With the controls centered, the boom descends farther than permitted. No external hydraulic leak is visible. Before any component is replaced, what do these findings establish?
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Correct answer: B - The holding function has failed, but the faulty component has not been identified.
Question 6
A 20,000-lb aerial-lift truck will use four outriggers. For the planned configuration, the manufacturer gives a maximum reaction of 8,000 lb at one outrigger. The verified allowable ground bearing pressure is 2,000 lb/ft². All listed pads have adequate strength and rigidity, and their entire area will bear on the prepared surface. Select the smallest listed square pad that meets the bearing-pressure limit.
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Correct answer: C - 30 in × 30 in
Question 7
A scissor lift is being returned to use after four months in storage. Its maintenance instructions require a frequent inspection after more than three months out of service. The annual inspection was completed five months ago and remains current, and today's operator pre-start check finds no defects. What inspection is required before return to service?
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Correct answer: A - A frequent inspection by a person qualified for that make and model.
Question 8
An indoor scissor lift passes its pre-use inspection with complete guardrails and a functioning gate. Its instructions permit the task with guardrails alone; neither employer policy nor an applicable rule requires additional personal tie-off. All work is reachable with both feet on the platform floor. An operator accustomed to boom lifts refuses the machine because it lacks an approved lanyard anchor. How should the supervisor resolve the disagreement?
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Correct answer: C - Accept the guardrail protection for this task and keep the gate closed.
Question 9
A qualified, employer-authorized boom-lift operator receives a replacement model in the same MEWP group and type. The operator has demonstrated proficiency but has never used this model's control layout or auxiliary lowering system. A coworker argues that the current training record covers any boom lift. What preparation is missing before this operator uses the replacement?
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Correct answer: D - Provide familiarization with this model's controls, operating limits, safety devices, and emergency lowering.
Question 10
A self-propelled articulating boom permits elevated travel from the platform controls. Its ground station can position and lower the boom but cannot drive the machine. The platform center can extend beyond the tipping lines. What is this mobile elevating work platform's group and type?
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Correct answer: A - Group B, Type 3
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