Mechanics Exam UPDATED ACTUAL Questions and
CORRECT Answers
** An MOV burns out, you replace it but cannot read Replace it with a larger one (630)
voltage or resistance. What should you do?
* On a Ward-Leonard circuit, the brake is set but the Suicide circuit (425)
motor is trying to slip through the brake. What circuit is
the issue?
** A Hydro runs up with no load but does not run up The relief valve is set too low (805)
with a full load. What is the issue?
** Runby for a 1:1 car hits the CWT buffer 4" below the 22" for 1:1.
top landing. The CWT runby should be set at 18". How For a 2:1 with the same issue is 44".
much should the ropes be shortened?
** You need to work on a freight door retiring cam. You Mainline disconnect (535)
LOTO the mainline disconnect but there is still power to
the cam. What circuit is still hot?
** The contractor requests that the vertical center of the Adjust Tie downs/Wall ties (805)
Rack and Pinion hoist be moved. How is this
accomplished?
** Working pressure on a Hydro is 400 PSI. What is the 600 PSI Max. (805)
correct Relief Valve Setting? 400 psi x 150% = 600 psi
** A contractor wants to raise the car speed from 100 15"
FPM to 125 FPM. It currently has a 12" sheave. What size (125 /100 = 1.25 1.25 x 12 = 15)
sheave is required?
** There is slight arcing at the Brushes and Commutator. None. (430)
What actions must be taken? "Heavy arcing is due to light brush pressure. Mechanical wear indicates heavy
brush pressure.
** How much resistance is normally measured across a 1.2 ohms or 1 to 2 ohms
normally closed switch ?
** A car traveling in the hoistway always stops at the Traveling cable has a cut or short
same point and blows a fuse. What is the problem?
** How is a Class 1 (yearly) buffer test performed? At slow speed and the buffer must return in 90 seconds. (555) *(60 seconds is
acceptable) (90 seconds is code)
5 year test (Class 5) is car at rated load and speed. Buffer must return in 90
seconds. CWT at rated speed and buffer must return in 90 seconds.
** How many Strain Supports are required on a 350' 4
raceway? One for every 100'
, ** How is Stainless steel drilled out? Slow speed and constant pressure (205)
** What are the required amount of clips for Wedge At least 2, with the first being 4 times the diameter of the rope from the top of
Shackles and what is their spacing? shackle.
Second is 8 times the diameter of the rope from the first.
** Car is loaded with 125% and sinks. Why? Slipped through the brake.
** A 300 Ohm resistor burns out. You don't have a 300 2 600 Ohms resistors in Parallel. "The resistance is half of the highest rating in a
Ohm resistor to replace it. What can you use to make parallel circuit.
up the resistor? 3, 225 Ohm resistors in parallel equal 75 Ohms.
** A 480 VAC Step Down Transformer is connected to a 320 VDC
3 phase rectifier. What will the output be? 480 - 33.33% = 320
** If you find a broken or missing barricade, what do Write up a formal inspection request.
you do?
** If a Dumbwaiter has 9 square feet in Area, 500 lb/ft3.
4 ' High and the rated Capacity is 13.9 lb/ft3, what is the "The area of a Dumbwaiter is 9 sq' max and is 4' High. Multiply that by 13.9.
total capacity? 9x4 = 36. 36 x 13.9 = 500
** What are the consequences of a misaligned Rack and Broken Gear Teeth (850) Motor not aligned.
Pinion hoist joint?
** You enter a Pit where toxic fumes are present. How Follow proper procedures.
do you proceed? "Confined Space entry procedures are now guided by OSHA for pit entry".
** When changing a 1:1 car rated at 600 FPM and 2000 300 FPM and 4000 lb capacity.
lb capacity to a 2:1, what will the new ratings be? "Halves the speed and doubles the capacity ".
** A "Vertical" platform lift has a clearance of 1". How Deduct 1/4".
much will it need to be moved to meet code? ( 3/4" ) is needed.
** A car weighs 2500 lbs with a capacity of 2500 lbs. 1500 lbs
The CWT is weighed at 40%. How much is the motor 2500 x .40 = 1000 lbs
lifting at 100% load? 2500 + 1000 = 3500 lbs
5000 - 3500 = 1500 lbs
** When drilling a Jack Hole in sandy conditions, what Rotary or Auger bit (805)
type of drill rig is required?
Rotary = Compacted soil
Percussion = Rocky conditions
Percussion Rotary = Solid rock
** A customer does not want an Escape Hatch on his Manual Operation must be provided (850)
residential elevator. Under what conditions is this legal?
** You wired the Down Direction and Final Limit You wired the Down Direction Limit wrong.
switches. Now the car only runs up. What is the
problem?
** What are the effects of one rope sitting deeper in the The rope wears out and breaks faster (250)
sheave groove?
CORRECT Answers
** An MOV burns out, you replace it but cannot read Replace it with a larger one (630)
voltage or resistance. What should you do?
* On a Ward-Leonard circuit, the brake is set but the Suicide circuit (425)
motor is trying to slip through the brake. What circuit is
the issue?
** A Hydro runs up with no load but does not run up The relief valve is set too low (805)
with a full load. What is the issue?
** Runby for a 1:1 car hits the CWT buffer 4" below the 22" for 1:1.
top landing. The CWT runby should be set at 18". How For a 2:1 with the same issue is 44".
much should the ropes be shortened?
** You need to work on a freight door retiring cam. You Mainline disconnect (535)
LOTO the mainline disconnect but there is still power to
the cam. What circuit is still hot?
** The contractor requests that the vertical center of the Adjust Tie downs/Wall ties (805)
Rack and Pinion hoist be moved. How is this
accomplished?
** Working pressure on a Hydro is 400 PSI. What is the 600 PSI Max. (805)
correct Relief Valve Setting? 400 psi x 150% = 600 psi
** A contractor wants to raise the car speed from 100 15"
FPM to 125 FPM. It currently has a 12" sheave. What size (125 /100 = 1.25 1.25 x 12 = 15)
sheave is required?
** There is slight arcing at the Brushes and Commutator. None. (430)
What actions must be taken? "Heavy arcing is due to light brush pressure. Mechanical wear indicates heavy
brush pressure.
** How much resistance is normally measured across a 1.2 ohms or 1 to 2 ohms
normally closed switch ?
** A car traveling in the hoistway always stops at the Traveling cable has a cut or short
same point and blows a fuse. What is the problem?
** How is a Class 1 (yearly) buffer test performed? At slow speed and the buffer must return in 90 seconds. (555) *(60 seconds is
acceptable) (90 seconds is code)
5 year test (Class 5) is car at rated load and speed. Buffer must return in 90
seconds. CWT at rated speed and buffer must return in 90 seconds.
** How many Strain Supports are required on a 350' 4
raceway? One for every 100'
, ** How is Stainless steel drilled out? Slow speed and constant pressure (205)
** What are the required amount of clips for Wedge At least 2, with the first being 4 times the diameter of the rope from the top of
Shackles and what is their spacing? shackle.
Second is 8 times the diameter of the rope from the first.
** Car is loaded with 125% and sinks. Why? Slipped through the brake.
** A 300 Ohm resistor burns out. You don't have a 300 2 600 Ohms resistors in Parallel. "The resistance is half of the highest rating in a
Ohm resistor to replace it. What can you use to make parallel circuit.
up the resistor? 3, 225 Ohm resistors in parallel equal 75 Ohms.
** A 480 VAC Step Down Transformer is connected to a 320 VDC
3 phase rectifier. What will the output be? 480 - 33.33% = 320
** If you find a broken or missing barricade, what do Write up a formal inspection request.
you do?
** If a Dumbwaiter has 9 square feet in Area, 500 lb/ft3.
4 ' High and the rated Capacity is 13.9 lb/ft3, what is the "The area of a Dumbwaiter is 9 sq' max and is 4' High. Multiply that by 13.9.
total capacity? 9x4 = 36. 36 x 13.9 = 500
** What are the consequences of a misaligned Rack and Broken Gear Teeth (850) Motor not aligned.
Pinion hoist joint?
** You enter a Pit where toxic fumes are present. How Follow proper procedures.
do you proceed? "Confined Space entry procedures are now guided by OSHA for pit entry".
** When changing a 1:1 car rated at 600 FPM and 2000 300 FPM and 4000 lb capacity.
lb capacity to a 2:1, what will the new ratings be? "Halves the speed and doubles the capacity ".
** A "Vertical" platform lift has a clearance of 1". How Deduct 1/4".
much will it need to be moved to meet code? ( 3/4" ) is needed.
** A car weighs 2500 lbs with a capacity of 2500 lbs. 1500 lbs
The CWT is weighed at 40%. How much is the motor 2500 x .40 = 1000 lbs
lifting at 100% load? 2500 + 1000 = 3500 lbs
5000 - 3500 = 1500 lbs
** When drilling a Jack Hole in sandy conditions, what Rotary or Auger bit (805)
type of drill rig is required?
Rotary = Compacted soil
Percussion = Rocky conditions
Percussion Rotary = Solid rock
** A customer does not want an Escape Hatch on his Manual Operation must be provided (850)
residential elevator. Under what conditions is this legal?
** You wired the Down Direction and Final Limit You wired the Down Direction Limit wrong.
switches. Now the car only runs up. What is the
problem?
** What are the effects of one rope sitting deeper in the The rope wears out and breaks faster (250)
sheave groove?
