Download NEIEP 100 Final Exam Study Guide (2026/2027) | Elevator Tech | NEIEP (PDF) and more Exams International Trade Union Law in PDF only on Docsity!
NEIEP 100 Final Exam Study Guide
Questions and Verified Answers
100% Guarantee Score Pass
Consist of 200+ Questions and Answers
1. If rigging gear is roped 3:1 and a BEAM CLAMP is used to lift a 6,000lb load.
What is the beam capacity Ans>> 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
2. What are the consequences of misaligned joints on a Rack and Pinion
Ans>> - Broken Gear teeth. CWT derailment. Excessive wear/ crease the surface of the tube
3. There is a noise coming from a freight door.The sheave is moving, but the chain is not. What is the problem
Ans>> Oil on the drive chain
4. What is the effect when you change a sling angle from 60 degrees to 30 degrees
Ans>> More tension, less capacity. Any angle 30 or less is dangerous
5. Generator runs at 600rpm and has 4 poles, what is the output frequency?-
: 20hz 600/60=10 10x2=20 RPM 60 x frequency / pole/
6. How many wires are needed for the following circuit? Exclude spares. BCE---SPI/BCD---SP2/BCD---SP4/BCD---
UR1/BCE---UR2/BCE---DR1/CRE--- DR2/GRD: 11 wires.You do not need the duplicates
7. How must a 9 lead 480/240 motor be wired for High Voltage
Ans>> L1(1) L2(2) L3(3) Low Voltage L1(1-7) L2(2- 8) L3(3-9) 7-4 8-6 9-5 4 5 6 + 120v 0-------0 R2 A R1 GRD
8. There is voltage at the switch, but none at A, what is wrong
Ans>> Open at R2 or R
9. The close door limit switch is not working, you have power at points 35-8, no voltage at 1-S2 why
Ans>> Door limit switch malfunction
10. The step level switch on an escalator has been tripped, where do you check
Ans>> Upper and Lower Truss assemblies, trips if step sags more than 1/8th inch
11. A motor needs a sleeve bearing replaced, what type of bearing do you need
Ans>> Friction bearing AKA Sleeve bearing. Anti-Friction Bearing AKA Ball bearing
12. What type of safeties are required on a 300fpm car
Ans>> Type B wedge clamp
13. What stopping devices are required on vertical platforms
Ans>> 2 pan switches. 15lbs max pressure
23. How many gallons are needed to run a 6" plunger 30'
Ans>> 30' to inch= 360" 3x3x3.14=28.26 28.26x360=10,173.6/231=44.04 gallons 4" 25': 25x12= 2x2x3.14=12.56x300=3768/231=16.3 gallons
24. A force of 5,000lbs is applied to a plunger with an area of 25sqin. What is system pressure
Ans>> 200psi 500/25 PRESSURE=FORCE/AREA AREA=FORCE/PRESSURE
25. What is the definition of working pressure
Ans>> Fully loaded to capacity, Full speed running up
26. On a geared machine the worm and worm gear are made out of what materials
Ans>> Steel and Bronze
27. What is the purpose of a gear reduction unit on a geared machine
Ans>> In- creased lifting capacity
28. What holds a stopped Hydraulic elevator
Ans>> Check valve
29. What must be done if you get on top of a dumbwaiter
Ans>> Never fully get on top. Work only partially on with the mainline disconnect off
30. How do you measure an escalator hand rail
Ans>> Mark the top and bottom of the inclination, measure in between and move the car until the bottom mark is at the top, measure again and continue doing this until you see your 1st mark. The last measurement will be shorter. Add all the measurements together to get your length.
31. A moving walk has an inclination of 10degrees, what is the highest angle it can be
Ans>> 12degrees escalator 31degrees
32. In a Ward-Leonard system, if all 3 contacts close what will happen
Ans>> The car will run at full speed
33. What type of oil do you put in a machine
Ans>> Gear oil, non-detergent, single viscosity
34. If a Rack and Pinion hoist is not plumb, level and square. What can hap- pen
Ans>> Set the Safeties
35. What are extension tubes used for
Ans>> Necessary clearance for placement of concrete forms.
36. If a hoist motor is making noise, what is the problem
Ans>> To help prevent distortion to the building AC supply, INDUCTORS can be used on AC input of a solid state drive. Inductors can serve double duty, they operate as Transformers, to
49. You are installing a machine and sheave, where would machine and sec- ondary sheaves be aligned
Ans>> In the center of the Rail measurements
50. You are testing an elevator with a rated speed of 500fpm. What is the min- imum speed the safeties should set
at Ans>> 575fpm. Mechanical:115% x 500=575. Electrical:90% x 575=517.5fpm
51. You are installing machines, governors, and generators, and need to know the location where it needs installed.
Where would you find the information?- : The machine room plan view
52. What is the minimum breaking strength of a wire rope used as Life Safe-
ty Ans>> 5,000 pounds
53. You go to a trouble call and the building owner keeps asking when the car will be back up and if you can take any
short cuts to get it up faster. What is your response Ans>> Give a reasonable response on time and safety factors. If that doesn't work, he can **** OFF
54. What are 3 major factors in Hydraulic pit maintenance
Ans>> Oil, Tripping haz- ards, Electricity
55. What is the tolerance for 3/8 at.
Ans>> 372-.378 bilateral=2 direction unilateral=1 direction
56. You are working with EYE BOLTS, where would you check for lifting capac- ity
Ans>> NEVER use eye bolts for hoisting
57. You are installing the limit cam on the car and notice that the holes are not lining up. Where do you find the
correct location for the cam Ans>> The mechanical detail drawing
58. You are on a call and find the pulley came off the pump motor and the set screw is missing, what kind of
screw would you use to replace the set screw Ans>> Cup Screw
59. You have to measure the outside of a pipe. What tool would you use
Ans>> - Caliper Rule
60. You are installing spring buffers on a 200fpm car, what is the minimum buffer stroke
Ans>> 4inch 100fpm 1 ½ inch 100fpm-150fpm 2 ½ inch 200fpm 4 inch
61. You are going to replace the disc on your grinder, what test should you do before using
Ans>> Ring test
62. How often do electrical cords need to be checked for continuity
Ans>> Every 3 months
63. The DBG is 6'6" using 15lb rails with ¼ shim on the brackets, what is DBB
66. You are stacking rails in a single hydro hoist way, with a rise of 48' how
many rails will you need Ans>> 6 total rails 48' / 16' = 3 3 x 2 sides = 6 rails
67. Installing a 3,000lb capacity car, how much load will the break stop and hold
Ans>> 3,750lbs 125% of rated capacity 3,000 x 125 = 375,000 / 100 = 3,
68. On traction elevators where are the bottom guide shoes mounted
Ans>> To the safety plank
69. You have a hoist rated at 3,000lbs, if you use a double block to single block reeving, what would your total lifting
capacity be Ans>> 6,000lbs
70. You need to find the DBG for the car, where would you find this informa- tion
Ans>> Final layout or Hoistway plan view drawing
71. You are hoisting rails into the hoist way using a capstan hoist, your apprentice is having a hard time pulling in
rails. What can be done to make it easier Ans>> Add another or more wraps to the capstan hoist
72. Responding to a call on a hydro, you determine that the 50amp circuit breaker that feeds the controller has
tripped. What component of the elevator has the ability to cause this problem Ans>> The pump motor
73. The motor field windings on a DC motor are wound around a laminated core. The composition of the core
material is dependent upon which charac- teristics Ans>> Permeability: the ability of a substance to pack in magnetic lines of flux in a given space
74. You suspect a phasing issue with building power. Which controller device should you check 1st
Ans>> Reverse phase relay: detects if incoming power has a loss of phase or phase reversal
75. How do you measure AC voltage on a Digital Multimeter
Ans>> Function to VAC Red lead to Volt ohm Black lead to common
76. Sometimes necessary to increase output of a DC generator to over speed an elevator as part of the safety test. If
maximum output is reached and speed cannot be increased, it is said to be what Ans>> Saturated: cannot produce any more magnetic lines of flux
77. Which of the following maintenance procedures addresses the issue of proper DC generator commutation
Ans>> Continued contact between brushes and commutator
78. Customer is complaining that an older SCR drive powered elevator, is causing noise in the building power
lines. What can help reduce the noise?-
Ans>> 2hz Frequency from time or Period F=1/T F=1/.5= 2hz
88. Freight doors are binding because they are hanging out of square, what adjustments can you make
Ans>> Adjust door track chains
89. You are about to start installing your duct run in the hoist way. What is the best method to give you the
straightest line Ans>> Using a plumb bob, snap the line, and measure off of the rail
90. When installing multiple Traveling cables, where is the 1st cable located?-
: 1 st is closest to the rail.
91. 2 controllers in a small machine room face each other, what is the minimum
clearance between them Ans>> 36 inches
92. When installing travelers, what is the minimum length of vertical suspen- sion at both ends before the loop
starts Ans>> 4 feet
93. You attempt to adjust a new VV-VF door operator, but it operates in the wrong direction. How do you
change the direction Ans>> Change the phase se- quence
94. You receive a call that a center opening car is running with one door partially open, how is this possible
Ans>> The gate switch is activated by the door drive, but the relating device has failed
95. In order to properly bond an isolation platform, where should you connect your bonding straps
Ans>> From the platform to the car sling
96. As a mechanic you are sent to install an escalator, what point of reference would you use to square the unit
Ans>> Column LINE
97. Escalator demarcation lights are required by code for what reason
Ans>> To provide passengers with a visual indication when entering and exiting the unit.
98. While adjusting a passenger elevator door operator with a PERMANENT MAGNENT DC motor. Which operation
would you perform to control the mo- tor Ans>> Speed and Torque control is accomplished by varying armature current and voltage only SHUNT MOTORS: shunt voltage increases, torque increases, speed decrease. Shunt voltage decreased, torque decrease, speed increase Armature voltage in- crease, rotation speed increase affecting door speed and torque.
99. What does ASME code specify regarding clearance between skirt panel and the side of the step tread
Ans>> Skirt board switches required at upper and lower ends. Gap no more than 3/16"
100. You momentarily actuate the motor starting relay, the direction of rotation is not correct, what can be done to
change rotation direction Ans>> Reverse any 2 leads of incoming motor phases.
101. You are preparing to hoist the car for cable installation, before doing this, what needs to be installed
Ans>> The governor cable
102. While on service you observe the mechanical style safety edges on center opening doors bumping into each
SCR, connect +lead to Anode, -lead to cathode, jumper between ANODE & GATE .7v if good. Remove jumper and it should stay on, remove a lead should read infinite
105. Trouble shooting a 3 input AND gate, all inputs are high, but the gate output is low. What is the problem
Ans>> Faulty gate. Truth table says output should be high.
106. When going to a trouble call you find that the machine room has 2 inches of water in it, what is the first thing
you do Ans>> Leave the Machine room
107. You find a blown fuse in the DC circuit feeding the door motor. When picking a replacement fuse what
should you do Ans>> Compare the blown fuse to the fuse rating in the straight line diagram
108. A DC door motor supplied from a 3 phase rectifier runs slow.The DC voltage is normally 320 is 220. What
should you do Ans>> Check the fuse feeding the AC rectifier
109. There is a call that a traction elevator is stuck in the overhead. In order to get the car down, what circuits do
you need to jump out Ans>> The primary safety circuits
110. Installing Horizontal sliding doors with guides in each door panel, how far must each guide engage the sill gauge
Ans>> ¼ inch
111. Your supervisor informs you to change software on a hydro microproces- sor board. The software is a 24 pin DIP
package. To properly orientate the new chip on the board, what must you do Ans>> Verify that the notch on the dip chip matches the notch on the board
112. You need to speed up an AC motor that has a fixed number of poles. How can you speed it up using the RPM
formula Ans>> Change the frequency. RPM= 60 x F / P/
113. You have finished digging a hole hydro, the jack is not on site.What must the hole have on it before you leave
Ans>> A welded cover
114. A CWT frame weighs 10,000lbs and needs to be increased by 5%.What is the new weight of the frame
Ans>> 10,500lbs 10,000 x 5 / 100= 500lbs +10,000 = 10,500lbs
115. You have 32' of rise in scaffolding and are using a 3'x5' base.Where are tie offs
Ans>> 1st at 12' and cannot be more than 26' apart vertically 30' apart horizontally
116. How is a step level switch on an escalator reset
Ans>> Manually
117. What is the Law of Power
Ans>> P=ExI
118. What is the maximum voltage drop that can occur across a 500watt resistor carrying 2amps of current
Ans>> 250 volts P/I 500/2=
119. While testing for a locked rotor condition, what could happen if the testing was carried on for too long
Ans>> Damage to the stator or rotor
