MECHANICS M.E. NEEP EXAM
QUESTIONS
A contractor wants to raise the car speed from 100 fpm to 125 fpm, it
currently has a 12" sheave. What is required? - ANSWER ✔ 100
fpm/125 fpm= 12"/ X =15
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 - 630
On a Ward-Leonard circuit the brake is set, but the motor is trying to slip
through the brake. What is the issue? - ANSWER ✔ Suicide Circuit -
425
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 - 815
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" - 235
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 -535
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 - 850
Working pressure on a Hydro is 400 PSI. What is the maximum relief
valve setting? - ANSWER ✔ 400 x 150%= 600 PSI - 815
, What must be installed on a false care before operation? - ANSWER ✔
Spring Loaded safeties - 110
There is slight arcing between the brush and commutator. What action
must be taken? - ANSWER ✔ None
Note: Heavy arcing= light brush pressure, Heavy brush pressure=
mechanical wear
If rigging is roped 3:1 and a BEAM CLAMP is used to lift a 6,000lb load.
What is the beam capacity? - ANSWER ✔ 18,000lbs -210
How much resistance is measured over a normally closed switch? -
ANSWER ✔ .2 Ohms- 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 - 515
How is a class 1 yearly buffer test preformed? - ANSWER ✔ Car at the
bottom landing and on inspection, jump out direction and final limits.
, With pit clear, run down to compress the buffers, buffers should fully
extend within 90 seconds.
Note: 5 yr is Full load, full speed - 555
How many strain supports are required on a 350 ft raceway? - ANSWER
✔4
1 every 100ft - 505-510
How is stainless steel drilled out? - ANSWER ✔ Slow speed and
constant pressure - 205
What is the required amout of retainer clips for wedge shackles and
what is the spacing? - ANSWER ✔ At least 2. First clip being 4 times the
diameter of the rope from the top of the shackle, and the second clip is 8
times the diameter of the rope away from the shackle. - 245
A 300 ohm resistor burns out, but you dont have another one. How can
you make one? - ANSWER ✔ 2- 600 ohms resistors in parallel is 300
ohms. Resistance is half of the highest resistor in the parallel circuit. 3-
225 ohms is 75 ohms. - 345
QUESTIONS
A contractor wants to raise the car speed from 100 fpm to 125 fpm, it
currently has a 12" sheave. What is required? - ANSWER ✔ 100
fpm/125 fpm= 12"/ X =15
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 - 630
On a Ward-Leonard circuit the brake is set, but the motor is trying to slip
through the brake. What is the issue? - ANSWER ✔ Suicide Circuit -
425
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 - 815
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" - 235
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 -535
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 - 850
Working pressure on a Hydro is 400 PSI. What is the maximum relief
valve setting? - ANSWER ✔ 400 x 150%= 600 PSI - 815
, What must be installed on a false care before operation? - ANSWER ✔
Spring Loaded safeties - 110
There is slight arcing between the brush and commutator. What action
must be taken? - ANSWER ✔ None
Note: Heavy arcing= light brush pressure, Heavy brush pressure=
mechanical wear
If rigging is roped 3:1 and a BEAM CLAMP is used to lift a 6,000lb load.
What is the beam capacity? - ANSWER ✔ 18,000lbs -210
How much resistance is measured over a normally closed switch? -
ANSWER ✔ .2 Ohms- 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 - 515
How is a class 1 yearly buffer test preformed? - ANSWER ✔ Car at the
bottom landing and on inspection, jump out direction and final limits.
, With pit clear, run down to compress the buffers, buffers should fully
extend within 90 seconds.
Note: 5 yr is Full load, full speed - 555
How many strain supports are required on a 350 ft raceway? - ANSWER
✔4
1 every 100ft - 505-510
How is stainless steel drilled out? - ANSWER ✔ Slow speed and
constant pressure - 205
What is the required amout of retainer clips for wedge shackles and
what is the spacing? - ANSWER ✔ At least 2. First clip being 4 times the
diameter of the rope from the top of the shackle, and the second clip is 8
times the diameter of the rope away from the shackle. - 245
A 300 ohm resistor burns out, but you dont have another one. How can
you make one? - ANSWER ✔ 2- 600 ohms resistors in parallel is 300
ohms. Resistance is half of the highest resistor in the parallel circuit. 3-
225 ohms is 75 ohms. - 345
