ELEVATORS MECHANICS EXAM 2024/2025 |ACCURATE ANSWERS
1. A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave. What sheave is required? - ACCURATE ANSWER100fpm / 125fpm = 12" / X= 15"
2. A MOV (Metal Oxide Varistor) burns out. You replace it, but canno...
ELEVATORS MECHANICS EXAM
2024/2025 |ACCURATE ANSWERS
1. A contractor wants to raise the car speed from 100fpm to 125fpm, it currently
has a 12" sheave. What sheave is required? - ACCURATE ANSWER✅✅100fpm
/ 125fpm = 12" / X= 15"
2. A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage
or resistance. What should you do? - ACCURATE ANSWER✅✅Replace it with
a larger MOV 630
3. On a Ward-Leonard circuit the break is set, but the motor is trying to slip
through the break. What is the issue? - ACCURATE ANSWER✅✅Suicide
Circuit 425
4. You have an old DC motor and are adding an SCR drive, what do you do to the
interpoles? - ACCURATE ANSWER✅✅Leave the interpoles alone. When
adding a SCR drive to the generator, the series loop is removed, as are the 3
resistors. Everything else remains the same.
5. A hydro runs up with no load, but will not run with a full load. What is the issue?
- ACCURATE ANSWER✅✅The relief valve is set too low 815
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? - ACCURATE
ANSWER✅✅22" 235
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? - ACCURATE
ANSWER✅✅Door Operator Disconnect/ Main Line Disconnect 535
,8. The contractor requests that the vertical center of a Rack and Pinion hoist be
moved. How do you do this? - ACCURATE ANSWER✅✅Adjust Tie Downs
and Wall Ties 850
9. Working pressure on a Hydro is 400psi. What is the maximum relief valve
setting? - ACCURATE ANSWER✅✅400psi x 150%= 600psi 815
10. What must be installed on a false car before operation? - ACCURATE
ANSWER✅✅Spring Loaded Safeties 110
11. There is slight arcing between the brush and commutator. What action must be
taken? - ACCURATE ANSWER✅✅None
Note: Heavy arcing=Light brush pressure, Heavy bush pressure=mechanical wear
430
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 requirement? - ACCURATE ANSWER✅✅18,000lbs.
Note: Beam capacity is cut in half with use of clamp, when rigging all blocks,
rope, and clamps will be Equal to the lowest load rating 210
13. How much resistance is measured over a normally closed switch? -
ACCURATE ANSWER✅✅1.2ohms. should be zero, but will never be that low
14. A car traveling in the hoistway always stops at the same spot and blows a fuse.
What causes this - ACCURATE ANSWER✅✅Traveling cable has a cut/exposed
wire or a short 515
,15. How is a class 1 yearly buffer test preformed? - ACCURATE
ANSWER✅✅Car at bottom landing and on inspection, jump out direction and
final limits.
With pit clear, run down to compress buffers, buffers should fully extend within 90
seconds.
Note: 5yr: Full load Full speed CWT: Full speed Empty 555 (may be 60 on test)
16. How many strain supports are required on a 350ft raceway? - ACCURATE
ANSWER✅✅4. 1 every 100ft 505-510
17) How is stainless steel drilled out? - ACCURATE ANSWER✅✅Slow speed
and constant pressure 205
18. What is the required amount of retainer clips for wedge shackles and what is
the spacing? - ACCURATE ANSWER✅✅At least 2. First clip being maximum 4
times the diameter of the rope from the top of the shackle, and the second clip is
maximum 8 times the diameter of the rope above the first clip. 245
19. A 300ohm resistor burns out, but you don't have another one. How can you
make one? - ACCURATE ANSWER✅✅2-600ohm resistors in parallel is
300ohms. Resistance is half of highest resistor in parallel circuit. 3-225ohm
resistors in parallel is 75ohms. 345
20. When cutting laminated panels, which direction should the finish side face? -
ACCURATE ANSWER✅✅Finish side facing the cutting edge of the tool. Blade
will burr the backside 255
21. How do you cut a finished floor? - ACCURATE ANSWER✅✅Cutting blade
away from finished side 255
, 22. A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier, what
is the output voltage? - ACCURATE ANSWER✅✅320vac 3 phase full wave =
1.33x output voltage. 715
23) Car is loaded with 125% and sinks. Why? - ACCURATE
ANSWER✅✅Slipping through the break
24. If you find a broken or missing barricade what should you do? - ACCURATE
ANSWER✅✅Write up a formal inspection request
25. What are the consequences of misaligned joints on a Rack and Pinion? -
ACCURATE ANSWER✅✅Broken Gear teeth. CWT derailment. Excessive
wear/ crease the surface of the tube 850
26. A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total
capacity? - ACCURATE ANSWER✅✅9 x 4 x 13.9= 500lbs Max capacity
27. You must enter a pit with a toxic atmosphere, how do you proceed? -
ACCURATE ANSWER✅✅Following proper OSHA procedure with proper
training and PPE 133
28. When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what
are the new ratings? - ACCURATE ANSWER✅✅300fpm 4,000lbs capacity Half
the speed, Double the capacity
29. A vertical platform lift has a clearance of 1 inch. How much will it have to
move to meet code? - ACCURATE ANSWER✅✅Move in ¼ inch. Code is ¾
inch
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