MECHANICS EXAM NEIEP ELABORATION
2025/2026 | COMPLETE QUESTIONS AND
ANSWERS WITH RATIONALES | 100%
VERIFIED <RECENT VERSION >
When installing travelers, what is the minimum length of vertical suspension at
both ends before the loop starts? - ANSWER 4 feet
You attempt to adjust a new VV-VF door operator, but it operates in the wrong
direction. How do you change the direction? - ANSWER Change the phase
sequence
You receive a call that a center-opening car is running with one door partially
open. How is this possible? - ANSWER The gate switch is activated by the door
drive, but the relating device has failed
In order to properly bond an isolation platform, where should you connect your
bonding straps? - ANSWER From the platform to the car sling
As a mechanic, you are sent to install an escalator. What point of reference would
you use to square the unit? - ANSWER Column LINE
, Escalator demarcation lights are required by code for what reason? -
ANSWER To provide passengers with a visual indication when entering and
exiting the unit.
While adjusting a passenger elevator door operator with a PERMANENT
MAGNET DC motor. Which operation would you perform to control the motor? -
ANSWER Speed and Torque control is accomplished by varying armature
current and voltage only
SHUNT MOTORS: shunt voltage increases, torque increases, speed decreases.
Shunt voltage decreased, torque decreased, speed increase Armature voltage
increase, and rotation speed increased, affecting door speed and torque.
What does the ASME code specify regarding clearance between the skirt panel
and the side of the step tread? - ANSWER Skirt board switches required at
upper and lower ends. Gap no more than 3/16"
After receiving an inspection report, one violation is the door closing force. After
checking, you read 50lb of door force. Is this code? How do you make it code-
compliant? - ANSWER Not code. Code is 30lb or less. To fix it, you need to
adjust the torque/speed of the door operator
You momentarily activate the motor starting relay; the direction of rotation is not
correct. What can be done to change the rotation direction? - ANSWER Reverse
any 2 leads of incoming motor phases.
Before you can move a piston on a hydro, what precautions must be taken? -
ANSWER Check the piston for debris and tightness of the head, make sure the
pit is clear
,You are preparing to hoist the car for cable installation. Before doing this, what
needs to be installed? - ANSWER The governor cable
While on service, you observe the mechanical style safety edges on center-opening
doors bumping into each other, reopening the doors. Where do you need to look to
repair this problem? - ANSWER The safety edge retraction mechanism
You are about to troubleshoot an elevator that is off. What print would help to
make it easier to trace the circuits? - ANSWER Straight Line Diagram
The fuses on a 3-phase input to the DC direct drive are open, and the elevator will
not run. What needs to be done to check for a shorted SCR? -
ANSWER Remove the SCR, connect +lead to Anode, -lead to cathode, jumper
between ANODE & GATE .7v if good. Remove the jumper, and it should stay on.
The lead should read infinite
Troubleshot a 3-input AND gate; all inputs are high, but the gate output is low.
What is the problem? - ANSWER Faulty gate. The truth table says the output
should be high.
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? - ANSWER Leave the Machine room
You find a blown fuse in the DC circuit feeding the door motor. When picking a
replacement fuse, what should you do? - ANSWER Compare the blown fuse to
the fuse rating in the straight line diagram
, A DC door motor supplied from a 3-phase rectifier runs slowly. The DC voltage is
normally 320 is 220. What should you do? - ANSWER Check the fuse feeding
the AC rectifier
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? - ANSWER The primary
safety circuits
You just pulled multiple cables down the hoistway of a high-rise. How should you
provide strain relief for the cables? - ANSWER Required every 100'. Begin
installing at the lowest and work upwards to adjust and tension
Installing Horizontal sliding doors with guides in each door panel, how far must
each guide engage the sill gauge? - ANSWER ¼ inch
Your supervisor informs you to change the software on a hydro microprocessor
board. The software is a 24-pin DIP package. To properly orient the new chip on
the board, what must you do? - ANSWER Verify that the notch on the dip chip
matches the notch on the board
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? - ANSWER Change the frequency.
RPM= 60 x F / P/2
You have finished digging a hole hydro, the jack is not on site. What must the hole
have on it before you leave? - ANSWER A welded cover
2025/2026 | COMPLETE QUESTIONS AND
ANSWERS WITH RATIONALES | 100%
VERIFIED <RECENT VERSION >
When installing travelers, what is the minimum length of vertical suspension at
both ends before the loop starts? - ANSWER 4 feet
You attempt to adjust a new VV-VF door operator, but it operates in the wrong
direction. How do you change the direction? - ANSWER Change the phase
sequence
You receive a call that a center-opening car is running with one door partially
open. How is this possible? - ANSWER The gate switch is activated by the door
drive, but the relating device has failed
In order to properly bond an isolation platform, where should you connect your
bonding straps? - ANSWER From the platform to the car sling
As a mechanic, you are sent to install an escalator. What point of reference would
you use to square the unit? - ANSWER Column LINE
, Escalator demarcation lights are required by code for what reason? -
ANSWER To provide passengers with a visual indication when entering and
exiting the unit.
While adjusting a passenger elevator door operator with a PERMANENT
MAGNET DC motor. Which operation would you perform to control the motor? -
ANSWER Speed and Torque control is accomplished by varying armature
current and voltage only
SHUNT MOTORS: shunt voltage increases, torque increases, speed decreases.
Shunt voltage decreased, torque decreased, speed increase Armature voltage
increase, and rotation speed increased, affecting door speed and torque.
What does the ASME code specify regarding clearance between the skirt panel
and the side of the step tread? - ANSWER Skirt board switches required at
upper and lower ends. Gap no more than 3/16"
After receiving an inspection report, one violation is the door closing force. After
checking, you read 50lb of door force. Is this code? How do you make it code-
compliant? - ANSWER Not code. Code is 30lb or less. To fix it, you need to
adjust the torque/speed of the door operator
You momentarily activate the motor starting relay; the direction of rotation is not
correct. What can be done to change the rotation direction? - ANSWER Reverse
any 2 leads of incoming motor phases.
Before you can move a piston on a hydro, what precautions must be taken? -
ANSWER Check the piston for debris and tightness of the head, make sure the
pit is clear
,You are preparing to hoist the car for cable installation. Before doing this, what
needs to be installed? - ANSWER The governor cable
While on service, you observe the mechanical style safety edges on center-opening
doors bumping into each other, reopening the doors. Where do you need to look to
repair this problem? - ANSWER The safety edge retraction mechanism
You are about to troubleshoot an elevator that is off. What print would help to
make it easier to trace the circuits? - ANSWER Straight Line Diagram
The fuses on a 3-phase input to the DC direct drive are open, and the elevator will
not run. What needs to be done to check for a shorted SCR? -
ANSWER Remove the SCR, connect +lead to Anode, -lead to cathode, jumper
between ANODE & GATE .7v if good. Remove the jumper, and it should stay on.
The lead should read infinite
Troubleshot a 3-input AND gate; all inputs are high, but the gate output is low.
What is the problem? - ANSWER Faulty gate. The truth table says the output
should be high.
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? - ANSWER Leave the Machine room
You find a blown fuse in the DC circuit feeding the door motor. When picking a
replacement fuse, what should you do? - ANSWER Compare the blown fuse to
the fuse rating in the straight line diagram
, A DC door motor supplied from a 3-phase rectifier runs slowly. The DC voltage is
normally 320 is 220. What should you do? - ANSWER Check the fuse feeding
the AC rectifier
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? - ANSWER The primary
safety circuits
You just pulled multiple cables down the hoistway of a high-rise. How should you
provide strain relief for the cables? - ANSWER Required every 100'. Begin
installing at the lowest and work upwards to adjust and tension
Installing Horizontal sliding doors with guides in each door panel, how far must
each guide engage the sill gauge? - ANSWER ¼ inch
Your supervisor informs you to change the software on a hydro microprocessor
board. The software is a 24-pin DIP package. To properly orient the new chip on
the board, what must you do? - ANSWER Verify that the notch on the dip chip
matches the notch on the board
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? - ANSWER Change the frequency.
RPM= 60 x F / P/2
You have finished digging a hole hydro, the jack is not on site. What must the hole
have on it before you leave? - ANSWER A welded cover
