Mechanics Exam NEIEP 2025 Questions and
Answers (Verified Answers by
Expert)
1. ** An MOV burns out, you replace it but cannot read voltage or resistance.
What should you do?ANS: Replace it with a larger one (630)
2. * On a Ward-Leonard circuit, the brake is set but the motor is trying to slip
through the brake. What circuit is the issue? ANS: Suicide circuit (425)
3. ** A Hydro runs up with no load but does not run up with a full load. What is
the issue? ANS: The relief valve is set too low (805)
4. ** Runby for a 1:1 car hits the CWT buffer 4" below the top landing. The CWT
runby should be set at 18". How much should the ropes be shortened? ANS:
,22" for 1:1.
For a 2:1 with the same issue is 44".
5. ** You need to work on a freight door retiring cam. You LOTO the mainline
disconnect but there is still power to the cam. What circuit is still hot? ANS:
Mainline disconnect (535)
6. ** The contractor requests that the vertical center of the Rack and Pinion
hoist be moved. How is this accomplished? ANS: Adjust Tie downs/Wall ties
(805)
7. ** Working pressure on a Hydro is 400 PSI. What is the correct Relief Valve
Setting? ANS: 600 PSI Max. (805)
400 psi x 150% = 600 psi
8. ** A contractor wants to raise the car speed from 100 FPM to 125 FPM. It
,currently has a 12" sheave. What size sheave is required? ANS: 15"
(125 /100 = 1.25 1.25 x 12 = 15)
9. ** There is slight arcing at the Brushes and Commutator. What actions must
be taken? ANS: None. (430)
"Heavy arcing is due to light brush pressure. Mechanical wear indicates heavy brush
pressure.
10. ** How much resistance is normally measured across a normally closed
switch ? ANS: 1.2 ohms or 1 to 2 ohms
11. ** A car traveling in the hoistway always stops at the same point and blows
a fuse. What is the problem? ANS: Traveling cable has a cut or short
12. ** How is a Class 1 (yearly) buffer test performed? ANS: 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.
13. ** How many Strain Supports are required on a 350' raceway?
ANS: 4 One for every 100'
14. ** How is Stainless steel drilled out? ANS: Slow speed and constant pressure
(205)
15. ** What are the required amount of clips for Wedge Shackles and what is
their spacing? ANS: At least 2, with the first being 4 times the diameter of the rope
from
Answers (Verified Answers by
Expert)
1. ** An MOV burns out, you replace it but cannot read voltage or resistance.
What should you do?ANS: Replace it with a larger one (630)
2. * On a Ward-Leonard circuit, the brake is set but the motor is trying to slip
through the brake. What circuit is the issue? ANS: Suicide circuit (425)
3. ** A Hydro runs up with no load but does not run up with a full load. What is
the issue? ANS: The relief valve is set too low (805)
4. ** Runby for a 1:1 car hits the CWT buffer 4" below the top landing. The CWT
runby should be set at 18". How much should the ropes be shortened? ANS:
,22" for 1:1.
For a 2:1 with the same issue is 44".
5. ** You need to work on a freight door retiring cam. You LOTO the mainline
disconnect but there is still power to the cam. What circuit is still hot? ANS:
Mainline disconnect (535)
6. ** The contractor requests that the vertical center of the Rack and Pinion
hoist be moved. How is this accomplished? ANS: Adjust Tie downs/Wall ties
(805)
7. ** Working pressure on a Hydro is 400 PSI. What is the correct Relief Valve
Setting? ANS: 600 PSI Max. (805)
400 psi x 150% = 600 psi
8. ** A contractor wants to raise the car speed from 100 FPM to 125 FPM. It
,currently has a 12" sheave. What size sheave is required? ANS: 15"
(125 /100 = 1.25 1.25 x 12 = 15)
9. ** There is slight arcing at the Brushes and Commutator. What actions must
be taken? ANS: None. (430)
"Heavy arcing is due to light brush pressure. Mechanical wear indicates heavy brush
pressure.
10. ** How much resistance is normally measured across a normally closed
switch ? ANS: 1.2 ohms or 1 to 2 ohms
11. ** A car traveling in the hoistway always stops at the same point and blows
a fuse. What is the problem? ANS: Traveling cable has a cut or short
12. ** How is a Class 1 (yearly) buffer test performed? ANS: 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.
13. ** How many Strain Supports are required on a 350' raceway?
ANS: 4 One for every 100'
14. ** How is Stainless steel drilled out? ANS: Slow speed and constant pressure
(205)
15. ** What are the required amount of clips for Wedge Shackles and what is
their spacing? ANS: At least 2, with the first being 4 times the diameter of the rope
from
