ELEVATOR MECHANIC (COMPLETED) EXAM / 220+ QUESTIONS AND CORRECT ANSWERS 2023/2024 / GRADED A+
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Grado
Elevator Mechanic
Institución
Liberty University
ELEVATOR MECHANIC (COMPLETED) EXAM / 220+ QUESTIONS AND CORRECT ANSWERS 2023/2024 / GRADED A+. Elevator Mechanic Exam Review 2023 1. A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave. What sheave is required?: Diam=12" 12/4=3" 25fpm=3" 100fpm + 25fpm= 12
ELEVATOR MECHANIC (COMPLETED) EXAM / 220+
QUESTIONS AND CORRECT ANSWERS 2023/2024 /
GRADED A+
,A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has
a 12" sheave. What sheave is required? - ✔✔Diam=12" 12/4=3" 25fpm=3"
100fpm + 25fpm= 12"+3"= 15" sheave
A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage
or resistance. What should you do? - ✔✔Replace it with a larger MOV
On a Ward-Leonard circuit the break is set, but the motor is trying to slip through
the break. What is the issue? - ✔✔Suicide Circuit
You have an old DC motor and are adding an SCR drive, what do you do to the
interpoles? - ✔✔Leave the interpoles alone. When adding a SCR drive to the
ELEVATOR MECHANIC (COMPLETED) EXAM / 220+
QUESTIONS AND CORRECT ANSWERS 2023/2024 /
GRADED A+
,generator, the series loop is removed, as are the 3 resistors. Everything else
remains the same
A hydro runs up with no load, but will not run with a full load. What is the issue? -
✔✔The relief valve is set too low
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? - ✔✔22"
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? - ✔✔Door Operator Disconnect/
Main Line Disconnect
The contractor requests that the vertical center of a Rack and Pinion hoist be
moved. How do you do this? - ✔✔Adjust Tie Downs and Wall Ties
ELEVATOR MECHANIC (COMPLETED) EXAM / 220+
QUESTIONS AND CORRECT ANSWERS 2023/2024 /
GRADED A+
, Working pressure on a Hydro is 400psi. What is the maximum relief valve setting?
- ✔✔400psi x 150%= 600psi
What must be installed on a false car before operation? - ✔✔Spring Loaded
Safeties.
There is slight arcing between the brush and commutator. What action must be
taken? - ✔✔None.
Heavy arcing=Light brush pressure. Heavy bush pressure=mechanical wear
If rigging gear is roped 3:1 and a BEAM CLAMP is used to lift a 6,000lb load. What
is the beam capacity? - ✔✔18,000lbs. 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
ELEVATOR MECHANIC (COMPLETED) EXAM / 220+
QUESTIONS AND CORRECT ANSWERS 2023/2024 /
GRADED A+
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