Choice and Conceptual Actual Emended
Exam Questions With Reviewed 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update
1. A hydraulic elevator rises but drifts down slowly when idle. What is the
most likely issue?
ANSWER Leaking check valve in the hydraulic control valve.
2. The hydraulic pump motor hums but the car does not move. What should
you check?
ANSWER Verify correct motor rotation and inspect pump coupling or
impeller.
3. An elevator's motor is rated for 450 V but is connected to a 480 V supply.
What must you do?
ANSWER Use a step-down transformer or adjust the controller settings
to match motor voltage rating.
4. The hoistway lighting goes out when the car reaches the top landing.
What’s the likely cause?
ANSWER A broken hoistway terminal strip or a tripped limit switch at
the top landing.
,5. You’ve installed a new door lock monitor but the car doors remain unlocked
during operation. What should you inspect?
ANSWER Check continuity of the door lock microswitch and verify
correct wiring to the safety circuit.
6. During your load test, the car overspeeds by 5 ft/min above rated speed.
What adjustments are needed?
ANSWER Reduce the governor to rope clearance or recalibrate the
speed governor settings.
7. A passenger elevator begins shuddering near full load. What might be the
problem?
ANSWER Check for worn guide rails or improper roller/roller guide
settings causing ride roughness.
8. The leveling is off by ½″ at one landing. How would you correct it?
ANSWER Adjust the leveling cam or stroke adjustment on the leveling
switch.
9. The backup battery system indicates insufficient capacity. What
maintenance should you perform?
ANSWER Test battery voltage, clean terminals, and replace any weak or
failing batteries per manufacturer spec.
10.Elevator chatter occurs when the car is idle. What’s likely malfunctioning?
ANSWER Inspect the brake coil or contacts—chatter suggests weak or
intermittent brake hold.
,11.The PLC controlling hoist operations reboots unexpectedly. What could
cause this?
ANSWER Look for voltage spikes on the control power supply or
grounding/EMI interference.
12.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
13.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
14.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
15.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
16.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
, 17.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
18.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
19.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
20.Working pressure on a Hydro is 400 PSI. What is the maximum relief valve
setting? - ANSWER 400 x 150%= 600 PSI - 815
21.What must be installed on a false care before operation? - ANSWER
Spring Loaded safeties - 110
22.There is slight arcing between the brush and commutator. What action must
be taken? - ANSWER None
23.Note: Heavy arcing= light brush pressure, Heavy brush pressure=
mechanical wear
24.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