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