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MIKE'S ULTIMATE ELEVATOR MECHANICS EXAM QUESTIONS AND ANSWERS 2024
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MIKE'S ULTIMATE ELEVATOR MECHANICS EXAM QUESTIONS AND ANSWERS 2024
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MIKE'S ULTIMATE ELEVATOR MECHANICSEXAM
1. How do you cut a finished floor? - ANSWERS-Cutting blade away from finished
side 255
2. A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier,
what is the output voltage? - ANSWERS-320vac 3 phase full wave = 1.33x output
voltage. 715
3) Car is loaded with 125% and sinks. Why? - ANSWERS-Slipping through the
break
4. If you find a broken or missing barricade what should you do? - ANSWERS-
Write up a formal inspection request
5. What are the consequences of misaligned joints on a Rack and Pinion? -
ANSWERS-Broken Gear teeth. CWT derailment. Excessive wear/ crease the
surface of the tube 850
6. A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total
capacity? - ANSWERS-9 x 4 x 13.9= 500lbs Max capacity
,7. You must enter a pit with a toxic atmosphere, how do you proceed? -
ANSWERS-Following proper OSHA procedure with proper training and PPE 133
8. When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what
are the new ratings? - ANSWERS-300fpm 4,000lbs capacity Half the speed, Double
the capacity
9. A vertical platform lift has a clearance of 1 inch. How much will it have to move
to meet code? - ANSWERS-Move in ¼ inch. Code is ¾ inch
20. A car weighs 2500lbs with a capacity of 2500lbs, the CWT is weighted at 40%,
how much is the motor lifting when the car is fully loaded? - ANSWERS-2500(car)
+ 1000(40%) 3500. 5000-3500=1500lbs lifted by the machine 240
21. A contractor wants to raise the car speed from 100fpm to 125fpm, it currently
has a 12" sheave. What sheave is required? - ANSWERS-100fpm / 125fpm = 12" /
X= 15"
22. A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read
voltage or resistance. What should you do? - ANSWERS-Replace it with a larger
MOV 630
23. On a Ward-Leonard circuit the break is set, but the motor is trying to slip
through the break. What is the issue? - ANSWERS-Suicide Circuit 425
,24. You have an old DC motor and are adding an SCR drive, what do you do to the
interpoles? - ANSWERS-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.
25. A hydro runs up with no load, but will not run with a full load. What is the
issue? - ANSWERS-The relief valve is set too low 815
26. 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? - ANSWERS-22"
235
27. 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? - ANSWERS-Door
Operator Disconnect/ Main Line Disconnect 535
28. The contractor requests that the vertical center of a Rack and Pinion hoist be
moved. How do you do this? - ANSWERS-Adjust Tie Downs and Wall Ties 850
29. Working pressure on a Hydro is 400psi. What is the maximum relief valve
setting? - ANSWERS-400psi x 150%= 600psi 815
30. What must be installed on a false car before operation? - ANSWERS-Spring
Loaded Safeties 110
, 31. There is slight arcing between the brush and commutator. What action must
be taken? - ANSWERS-None
Note: Heavy arcing=Light brush pressure, Heavy bush pressure=mechanical wear
430
32. 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? - ANSWERS-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
33. How much resistance is measured over a normally closed switch? - ANSWERS-
1.2ohms. should be zero, but will never be that low
34. A car traveling in the hoistway always stops at the same spot and blows a
fuse. What causes this - ANSWERS-Traveling cable has a cut/exposed wire or a
short 515
35. How is a class 1 yearly buffer test preformed? - ANSWERS-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)
36. How many strain supports are required on a 350ft raceway? - ANSWERS-4. 1
every 100ft 505-510
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