Elevator Mechanic Exam Review UPDATED
EXAM QUESTIONS WITH CORRECT AND
VERIFIED ANSWERS.
A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12"
sheave. What sheave is required? - CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅Suicide Circuit
You have an old DC motor and are adding an SCR drive, what do you do to the
interpoles? - CORRECT 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
A hydro runs up with no load, but will not run with a full load. What is the issue? -
CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅Adjust Tie Downs and Wall Ties
Working pressure on a Hydro is 400psi. What is the maximum relief valve setting? -
CORRECT ANSWERS✅✅400psi x 150%= 600psi
What must be installed on a false car before operation? - CORRECT
ANSWERS✅✅Spring Loaded Safeties.
There is slight arcing between the brush and commutator. What action must be taken? -
CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅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? - CORRECT
ANSWERS✅✅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? - CORRECT ANSWERS✅✅Traveling cable has a cut/exposed wire or
a short
How is a class 1 yearly buffer test preformed? - CORRECT 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.
5yr: Full load Full speed
CWT: Full speed Empty
How many strain supports are required on a 350ft raceway? - CORRECT
ANSWERS✅✅4. 1 every 100ft
How is stainless steel drilled out? - CORRECT ANSWERS✅✅Slow speed and
constant pressure
What is the required amount of retainer clips for wedge shackles and what is the
spacing? - CORRECT ANSWERS✅✅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?
- CORRECT ANSWERS✅✅2 600ohm resistors in parallel is 300ohms. Resistance is
half of highest resistor in parallel circuit.
3 225ohm resistors in parallel is 75ohms.
When cutting laminated panels, which direction should the finish side face? -
CORRECT ANSWERS✅✅Finish side facing the cutting edge of the tool. Blade will
burr the backside
How do you cut a finished floor? - CORRECT ANSWERS✅✅Cutting blade away
from finished side
A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier, what is the
output voltage? - CORRECT ANSWERS✅✅320vac
, 3 phase full wave = 1.33x output voltage
A car is loaded with 125% and sinks, why? - CORRECT ANSWERS✅✅Slipping
through the break
If you find a broken or missing barricade what should you do? - CORRECT
ANSWERS✅✅Write up a formal inspection request
What are the consequences of misaligned joints on a Rack and Pinion? - CORRECT
ANSWERS✅✅Broken Gear teeth. CWT derailment. Excessive wear/ crease the
surface of the tube
A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total capacity?
- CORRECT ANSWERS✅✅9 x 4 x 13.9= 500lbs Max capacity
You must enter a pit with a toxic atmosphere, how do you proceed? - CORRECT
ANSWERS✅✅Following proper OSHA procedure with proper training and PPE
When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what are the
new ratings? - CORRECT ANSWERS✅✅300fpm 4,000lbs capacity
Half the speed, Double the capacity
A vertical platform lift has a clearance of 1 inch. How much will it have to move to meet
code? - CORRECT ANSWERS✅✅Move in ¼ inch. Code is ¾ inch
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? - CORRECT
ANSWERS✅✅2500(car) + 1000(40%) 3500. 5000-3500=1500lbs lifted by the
machine
How must Oxygen and Acetylene tanks be stored? - CORRECT
ANSWERS✅✅Vertically, 12 feet apart, or on a cart with a ½ hour fire barrier between
them
What is code for sill to sill distance? - CORRECT ANSWERS✅✅Minimum ½ inch
Maximum 1 ½ inches
When drilling a jack hole in sandy conditions what type of drill rig is required? -
CORRECT ANSWERS✅✅Rotary or Auger bit. Rotary=Soft Percussion=Rocky
Combo=Solid
A customer does not want an escape hatch on a residential elevator, under what
condition is this legal? - CORRECT ANSWERS✅✅Manual operation must be
provided
EXAM QUESTIONS WITH CORRECT AND
VERIFIED ANSWERS.
A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12"
sheave. What sheave is required? - CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅Suicide Circuit
You have an old DC motor and are adding an SCR drive, what do you do to the
interpoles? - CORRECT 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
A hydro runs up with no load, but will not run with a full load. What is the issue? -
CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅Adjust Tie Downs and Wall Ties
Working pressure on a Hydro is 400psi. What is the maximum relief valve setting? -
CORRECT ANSWERS✅✅400psi x 150%= 600psi
What must be installed on a false car before operation? - CORRECT
ANSWERS✅✅Spring Loaded Safeties.
There is slight arcing between the brush and commutator. What action must be taken? -
CORRECT ANSWERS✅✅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? - CORRECT ANSWERS✅✅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? - CORRECT
ANSWERS✅✅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? - CORRECT ANSWERS✅✅Traveling cable has a cut/exposed wire or
a short
How is a class 1 yearly buffer test preformed? - CORRECT 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.
5yr: Full load Full speed
CWT: Full speed Empty
How many strain supports are required on a 350ft raceway? - CORRECT
ANSWERS✅✅4. 1 every 100ft
How is stainless steel drilled out? - CORRECT ANSWERS✅✅Slow speed and
constant pressure
What is the required amount of retainer clips for wedge shackles and what is the
spacing? - CORRECT ANSWERS✅✅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?
- CORRECT ANSWERS✅✅2 600ohm resistors in parallel is 300ohms. Resistance is
half of highest resistor in parallel circuit.
3 225ohm resistors in parallel is 75ohms.
When cutting laminated panels, which direction should the finish side face? -
CORRECT ANSWERS✅✅Finish side facing the cutting edge of the tool. Blade will
burr the backside
How do you cut a finished floor? - CORRECT ANSWERS✅✅Cutting blade away
from finished side
A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier, what is the
output voltage? - CORRECT ANSWERS✅✅320vac
, 3 phase full wave = 1.33x output voltage
A car is loaded with 125% and sinks, why? - CORRECT ANSWERS✅✅Slipping
through the break
If you find a broken or missing barricade what should you do? - CORRECT
ANSWERS✅✅Write up a formal inspection request
What are the consequences of misaligned joints on a Rack and Pinion? - CORRECT
ANSWERS✅✅Broken Gear teeth. CWT derailment. Excessive wear/ crease the
surface of the tube
A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total capacity?
- CORRECT ANSWERS✅✅9 x 4 x 13.9= 500lbs Max capacity
You must enter a pit with a toxic atmosphere, how do you proceed? - CORRECT
ANSWERS✅✅Following proper OSHA procedure with proper training and PPE
When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what are the
new ratings? - CORRECT ANSWERS✅✅300fpm 4,000lbs capacity
Half the speed, Double the capacity
A vertical platform lift has a clearance of 1 inch. How much will it have to move to meet
code? - CORRECT ANSWERS✅✅Move in ¼ inch. Code is ¾ inch
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? - CORRECT
ANSWERS✅✅2500(car) + 1000(40%) 3500. 5000-3500=1500lbs lifted by the
machine
How must Oxygen and Acetylene tanks be stored? - CORRECT
ANSWERS✅✅Vertically, 12 feet apart, or on a cart with a ½ hour fire barrier between
them
What is code for sill to sill distance? - CORRECT ANSWERS✅✅Minimum ½ inch
Maximum 1 ½ inches
When drilling a jack hole in sandy conditions what type of drill rig is required? -
CORRECT ANSWERS✅✅Rotary or Auger bit. Rotary=Soft Percussion=Rocky
Combo=Solid
A customer does not want an escape hatch on a residential elevator, under what
condition is this legal? - CORRECT ANSWERS✅✅Manual operation must be
provided
