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ELEVATOR MECHANIC EXAM REVIEW QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) | ASSURED SUCCESS
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  • Elevator mechanic
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ELEVATOR MECHANIC EXAM REVIEW QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) | ASSURED SUCCESS

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  • April 11, 2025
  • 45
  • 2024/2025
  • Exam (elaborations)
  • Unknown

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  • elevator mechanic exam review questions and correc

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  • Elevator mechanic
  • Elevator mechanic

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Estudyr

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ESTUDYR



ELEVATOR MECHANIC EXAM REVIEW QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) | ASSURED SUCCESS
1. A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12"
sheave. What sheave is required?

o A. 18"

o B. 12"

o C. 15"

o D. 10"

Rationale: Increasing the speed by 25fpm requires increasing the sheave size proportionally. The
calculation suggests a 15" sheave is required.

2. A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage or resistance.
What should you do?

o A. Use the same size MOV again

o B. Replace it with a larger MOV

o C. Test the circuit for shorts

o D. Install a fuse alongside the MOV

Rationale: A larger MOV can handle higher voltage surges, reducing the likelihood of burnout.

3. On a Ward-Leonard circuit, the break is set, but the motor is trying to slip through the break.
What is the issue?

o A. Overloaded motor

o B. Suicide Circuit

o C. Faulty relay

o D. Mechanical failure

Rationale: The "Suicide Circuit" allows current leakage, causing the motor to try to bypass the brake.

4. You have an old DC motor and are adding an SCR drive. What do you do to the interpoles?

,ESTUDYR


o A. Replace them

o B. Disconnect them

o C. Leave them alone

o D. Adjust their alignment

Rationale: The interpoles are left unchanged when adding an SCR drive, as they are integral to motor
operation.

5. A hydro runs up with no load, but will not run with a full load. What is the issue?

o A. Motor failure

o B. High friction in the system

o C. Relief valve is set too low

o D. Low hydraulic fluid level

Rationale: A relief valve set too low prevents the system from handling full load pressures.

6. Runby for a 1:1 hits the CWT buffer 4" below the top landing. CWT runby should be set at 18".
How much should the ropes be shortened?

o A. 20"

o B. 18"

o C. 22"

o D. 24"

Rationale: The ropes need to be shortened by the difference between the current and required runby.

7. You need to work on a freight door retiring cam. You LOTO the main line, but there is still
power on the cam. What circuit is still hot?

o A. Main circuit

o B. Door Operator Disconnect/Main Line Disconnect

o C. Auxiliary circuit

o D. Emergency override

Rationale: Power may remain due to separate door operator or auxiliary circuit feeds.

,ESTUDYR


8. The contractor requests that the vertical center of a Rack and Pinion hoist be moved. How do
you do this?

o A. Shift the base plate

o B. Adjust Tie Downs and Wall Ties

o C. Modify the rack alignment

o D. Realign the pinion gear

Rationale: Tie downs and wall ties provide the structural adjustments needed.

9. Working pressure on a Hydro is 400psi. What is the maximum relief valve setting?

o A. 500psi

o B. 600psi

o C. 450psi

o D. 700psi

Rationale: Relief valves are set to 150% of the working pressure for safety.

10. What must be installed on a false car before operation?

o A. Stabilizing weights

o B. Spring Loaded Safeties

o C. Hydraulic buffers

o D. Counterweight ropes

Rationale: Spring-loaded safeties are crucial for operational safety of a false car.

11. There is slight arcing between the brush and commutator. What action must be taken?

o A. Increase brush pressure

o B. Decrease brush pressure

o C. None

o D. Replace the brush immediately

Rationale: Slight arcing is normal. Heavy arcing suggests improper brush pressure or wear.

, ESTUDYR


12. If rigging gear is roped 3:1 and a BEAM CLAMP is used to lift a 6,000lb load, what is the beam
capacity?

o A. 6,000lbs

o B. 9,000lbs

o C. 18,000lbs

o D. 12,000lbs

Rationale: Beam capacity is halved with clamps. The full system must match the load rating.

13. How much resistance is measured over a normally closed switch?

o A. 0.5 ohms

o B. 1.2 ohms

o C. 2.0 ohms

o D. Zero

Rationale: Though ideally zero, contact resistance usually measures slightly above this.

14. A car traveling in the hoistway always stops at the same spot and blows a fuse. What causes
this?

o A. Faulty relay

o B. Overloaded circuit

o C. Cut or exposed wire in the traveling cable

o D. Improper grounding

Rationale: A cut or short in the traveling cable causes circuit failure at the same spot.

15. How is a class 1 yearly buffer test performed?

o A. Fully loaded and running full speed

o B. Car at bottom landing, pit clear, jump direction/final limits, observe buffer
compression/extension

o C. Empty car running at full speed

o D. Without load or speed requirements

Rationale: The test ensures buffers function as designed under safe conditions.

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