Elevator Mechanic Review
Exam Study Guide – Practice
Questions with Verified
Answers. GRADED A+. Latest
2026/2027 Update
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
,A hydro runs up with no load, but will not run with a full load. What is the
issue? - Answer✔✔-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? - Answer✔✔-
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? - Answer✔✔-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? - Answer✔✔-Adjust Tie Downs and Wall Ties
Working pressure on a Hydro is 400psi. What is the maximum relief valve
setting? - Answer✔✔-400psi x 150%= 600psi
What must be installed on a false car before operation? - Answer✔✔-Spring
Loaded Safeties.
There is slight arcing between the brush and commutator. What action must be
taken? - Answer✔✔-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? - Answer✔✔-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
, How much resistance is measured over a normally closed switch? -
Answer✔✔-1.2ohms. should be zero, but will never be that low
A car traveling in the hoistway always stops at the same spot and blows a fuse.
What causes this? - Answer✔✔-Traveling cable has a cut/exposed wire or a
short
How is a class 1 yearly buffer test preformed? - 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.
5yr: Full load Full speed
CWT: Full speed Empty
How many strain supports are required on a 350ft raceway? - Answer✔✔-4. 1
every 100ft
How is stainless steel drilled out? - Answer✔✔-Slow speed and constant
pressure
What is the required amount of retainer clips for wedge shackles and what is
the spacing? - Answer✔✔-Minimum 2 clips. 1st at a maximum 4x the diameter
of the rope
2nd at a maximum 8x the diameter above the 1st clip
A 300ohm resistor burns out, but you don't have another one. How can you
make one? - Answer✔✔-2 600ohm resistors in parallel is 300ohms. Resistance
is half of highest resistor in parallel circuit.
Exam Study Guide – Practice
Questions with Verified
Answers. GRADED A+. Latest
2026/2027 Update
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
,A hydro runs up with no load, but will not run with a full load. What is the
issue? - Answer✔✔-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? - Answer✔✔-
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? - Answer✔✔-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? - Answer✔✔-Adjust Tie Downs and Wall Ties
Working pressure on a Hydro is 400psi. What is the maximum relief valve
setting? - Answer✔✔-400psi x 150%= 600psi
What must be installed on a false car before operation? - Answer✔✔-Spring
Loaded Safeties.
There is slight arcing between the brush and commutator. What action must be
taken? - Answer✔✔-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? - Answer✔✔-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
, How much resistance is measured over a normally closed switch? -
Answer✔✔-1.2ohms. should be zero, but will never be that low
A car traveling in the hoistway always stops at the same spot and blows a fuse.
What causes this? - Answer✔✔-Traveling cable has a cut/exposed wire or a
short
How is a class 1 yearly buffer test preformed? - 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.
5yr: Full load Full speed
CWT: Full speed Empty
How many strain supports are required on a 350ft raceway? - Answer✔✔-4. 1
every 100ft
How is stainless steel drilled out? - Answer✔✔-Slow speed and constant
pressure
What is the required amount of retainer clips for wedge shackles and what is
the spacing? - Answer✔✔-Minimum 2 clips. 1st at a maximum 4x the diameter
of the rope
2nd at a maximum 8x the diameter above the 1st clip
A 300ohm resistor burns out, but you don't have another one. How can you
make one? - Answer✔✔-2 600ohm resistors in parallel is 300ohms. Resistance
is half of highest resistor in parallel circuit.
