Elevator Mechanic Exam Review/ 216 Qs with
Definitive Ans/ 2024-2025.
A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave.
What sheave is required? - Answer: 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? - Answer: 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? - Answer: Suicide Circuit
You have an old DC motor and are adding an SCR drive, what do you do to the interpoles? -
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
Page 1 of 25
,What is the ratio between the loop and diameter of a round traveler? - Answer: 30 times
What are the most common features of Load Weigh? - Answer: Control generator field and
Inside express operation
What is required by ASME on the car top? - Answer: Inspection station, Light, and Duplex outlet.
At what distance from closed does the gate switch operate? - Answer: 2 inches
What is the minimum number of spares that should be pulled? - Answer: 10 %
At what speed should the Gov. switch contact be set to open? - Answer: Electrical 90% of
Tripping speed for 150fpm-500fpm. 95% for +500fpm
If the DC output of a 3 phase rectifier is lower than specified, what is the problem? - Answer: AC
fuse is blown.
1 input phase is missing
What is the overlap minimum on 2 & 3 speed doors? - Answer: Horizontal ½ inch Vertical 1 inch
What are minimum and maximum clearance between sill and car doors? - Answer: ¼ inch
Minimum 3/8-inch Maximum
What is maximum leading edges for center opening doors? - Answer: ½ inch
What is minimum sill to gib engagement? - Answer: ¼ inch
What is minimum and maximum sill to sill gap? - Answer: ½ inch to 1 ½ inch
Page 2 of 25
, 1 gallon equals how many cubic feet? - Answer: .134 cubic feet
How many gallons are needed to run a 6" plunger 30'? - Answer: 30' to inch= 360"
3x3x3.14=28.26 28.26x360=10,173.6/231=44.04 gallons 4" 25': 25x12=300
2x2x3.14=12.56x300=3768/231=16.3 gallons
A force of 5,000lbs is applied to a plunger with an area of 25sqin. What is system pressure? -
Answer: 200psi
500/25 PRESSURE=FORCE/AREA AREA=FORCE/PRESSURE
What best describes the operation of a hydro valve, with the elevator at the lobby? - Answer:
Down valve: Closed
Check valve: Closed
Up valve: Open
What is the definition of working pressure? - Answer: Fully loaded to capacity, Full speed
running up
What is the conversion for kg to pounds? - Answer: 1kg=2.205lbs
On a geared machine the worm and worm gear are made out of what materials? - Answer:
Steel and Bronze
What is the purpose of a gear reduction unit on a geared machine? - Answer: Increased lifting
capacity
What holds a stopped Hydraulic elevator? - Answer: Check valve
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Definitive Ans/ 2024-2025.
A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave.
What sheave is required? - Answer: 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? - Answer: 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? - Answer: Suicide Circuit
You have an old DC motor and are adding an SCR drive, what do you do to the interpoles? -
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
Page 1 of 25
,What is the ratio between the loop and diameter of a round traveler? - Answer: 30 times
What are the most common features of Load Weigh? - Answer: Control generator field and
Inside express operation
What is required by ASME on the car top? - Answer: Inspection station, Light, and Duplex outlet.
At what distance from closed does the gate switch operate? - Answer: 2 inches
What is the minimum number of spares that should be pulled? - Answer: 10 %
At what speed should the Gov. switch contact be set to open? - Answer: Electrical 90% of
Tripping speed for 150fpm-500fpm. 95% for +500fpm
If the DC output of a 3 phase rectifier is lower than specified, what is the problem? - Answer: AC
fuse is blown.
1 input phase is missing
What is the overlap minimum on 2 & 3 speed doors? - Answer: Horizontal ½ inch Vertical 1 inch
What are minimum and maximum clearance between sill and car doors? - Answer: ¼ inch
Minimum 3/8-inch Maximum
What is maximum leading edges for center opening doors? - Answer: ½ inch
What is minimum sill to gib engagement? - Answer: ¼ inch
What is minimum and maximum sill to sill gap? - Answer: ½ inch to 1 ½ inch
Page 2 of 25
, 1 gallon equals how many cubic feet? - Answer: .134 cubic feet
How many gallons are needed to run a 6" plunger 30'? - Answer: 30' to inch= 360"
3x3x3.14=28.26 28.26x360=10,173.6/231=44.04 gallons 4" 25': 25x12=300
2x2x3.14=12.56x300=3768/231=16.3 gallons
A force of 5,000lbs is applied to a plunger with an area of 25sqin. What is system pressure? -
Answer: 200psi
500/25 PRESSURE=FORCE/AREA AREA=FORCE/PRESSURE
What best describes the operation of a hydro valve, with the elevator at the lobby? - Answer:
Down valve: Closed
Check valve: Closed
Up valve: Open
What is the definition of working pressure? - Answer: Fully loaded to capacity, Full speed
running up
What is the conversion for kg to pounds? - Answer: 1kg=2.205lbs
On a geared machine the worm and worm gear are made out of what materials? - Answer:
Steel and Bronze
What is the purpose of a gear reduction unit on a geared machine? - Answer: Increased lifting
capacity
What holds a stopped Hydraulic elevator? - Answer: Check valve
Page 3 of 25
