Elevator Mechanic Exam Review Questions with
100% Verified Solutions
Where should you aim a fire extinguisher to put out a fire? - ANSWER At
the base of the fire
Car with selective collective system is moving to the lobby to take a call, an up call is
put in at the 2nd floor, what happens? - ANSWER The call is bypassed until the car is
traveling up
During construction you land an escalator, but it is 10mm low, what is wrong? -
ANSWER The pit is too deep or column Mark is off
During construction the Omega CWT rails have been damaged, what happened? -
ANSWER The Omegas were over tightened
How do you handle a co-worker who shows up drunk? - ANSWER Speak
with MIC, Call BA, call supervisor
How do you attach brackets to brick? - ANSWER Inserts set back a ¼ inch
into the block. Code could call for through bolts
What is Selective Collective System? - ANSWER Controller that allows an
elevator to bypass calls in the opposite direction of travel.
Generator runs at 600rpm and has 4 poles, what is the output frequency? - CORRECT
ANSWER 20hz
600/60=10 10x2=20
Hz = RPM divided by 60 X half of the poles
RPM = 60 X Frequency/ half of the poles
If a XOR gate was connected to a NOR gate and attached to an AND gate with a High
output. What is input of the XOR gate A&B? - ANSWER Both must be High
Using BINARY logic, what DIP switches must be on for a 128 bit 30 second timer set at
150% - ANSWER 1,3,4,6=45 seconds
30 seconds X 150%=45 seconds
1 2 4 8 16 32 64 128 128 BIT
1 2 3 4 5 6 7 8 DIP SWITCHES
++++
32+8+4+1=45 seconds
,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 - CORRECT
ANSWER 11 wires. You do not need the duplicates
How must a 9 lead 3 phase 480/240 motor be wired for High Voltage? - CORRECT
ANSWER L1-T1/4-7/L2-T3/5-8/L3-T3/6-9 high voltage
1-7/2-8/3-9/4-5-6 low voltage
There is voltage at the switch, but none at A, what is wrong? - ANSWER
Open at R2 or R1
What does a square with a darkened triangle in the right upper corner represent? -
ANSWER DC Relay
darkened lower triangle=Latching Relay
arrow=Timer
The close door limit switch is not working, you have power at points 35-8, no voltage at
1-S2 why? - ANSWER Door limit switch malfunction
Car is running normally, but the Fire Service buzzer will not shut off, Why? - CORRECT
ANSWER EHP 3-2 shorted
Relay STR has voltage, TRU has voltage, RU no voltage, why? - ANSWER
TRU 9/8 open
2nd floor PI lights then quickly shuts off, why? - ANSWER X1 4-6
Car will not travel to 2 without a 3 call, and will not go down to 3 without a 2 call? -
ANSWER 2F1 4-6
Sheet 3, why wont the motor start? - ANSWER MOL1 T/B
The step level switch on an escalator has been tripped, where do you check? -
ANSWER Upper and Lower Truss assemblies, trips if step sags more than 1/8th inch
You get a trouble call for an inoperable freight door. What must you do before you begin
work? - ANSWER Block open the door. LOTO. Barricades
You get shocked when attempting to move a car with a temp run bug, what is the
problem? - ANSWER Ground wire not hooked up
A motor needs a sleeve bearing replaced, what type of bearing do you need? -
ANSWER Friction bearing AKA Sleeve bearing.
, Anti-Friction Bearing AKA Ball bearing
7-foot platform with inside cab clearance of 6'8", what is the thickness of the cab walls?
- ANSWER 2-inch-thick walls
You notice Roughing on the Governor rope and Tail Sheave. What should you check? -
ANSWER Rope Diameter, measure rope and diameter for replacement
Car doors are dragging in the sill, how high should the car doors be above the sill? -
ANSWER ¼" to 3/8"
What type of safeties are required on a 300fpm car? - ANSWER Type B
wedge clamp
What stopping devices are required on vertical platforms? - ANSWER 2 pit
obstruction switches. 15lbs max pressure
What type of oil is required for sleeve bearings? - ANSWER Single
viscosity, non detergent
What is the maximum inclination for moving walks? - ANSWER 12 degrees
How does a GFI work? - ANSWER Detects an imbalance between Hot and
Neutral Wires
Who is required to provide MSDS or SDS for a solvent you are using? - CORRECT
ANSWER Your employer
How do emergency doors swing? - ANSWER Outwards
You have an EMT run with 3-90s, 2-45s, and a saddle bend. What is required? -
ANSWER An Intermediate pull box. 360 degrees is most bends for a
continuous pipe
What is the maximum distance between vertical race way supports? - CORRECT
ANSWER 15 feet
What is the smallest wire used inside travelers and outside of travelers? - CORRECT
ANSWER #20awg in traveler
#24awg outside traveler
What is the maximum distance between strain relief supports? - ANSWER
100 feet
100% Verified Solutions
Where should you aim a fire extinguisher to put out a fire? - ANSWER At
the base of the fire
Car with selective collective system is moving to the lobby to take a call, an up call is
put in at the 2nd floor, what happens? - ANSWER The call is bypassed until the car is
traveling up
During construction you land an escalator, but it is 10mm low, what is wrong? -
ANSWER The pit is too deep or column Mark is off
During construction the Omega CWT rails have been damaged, what happened? -
ANSWER The Omegas were over tightened
How do you handle a co-worker who shows up drunk? - ANSWER Speak
with MIC, Call BA, call supervisor
How do you attach brackets to brick? - ANSWER Inserts set back a ¼ inch
into the block. Code could call for through bolts
What is Selective Collective System? - ANSWER Controller that allows an
elevator to bypass calls in the opposite direction of travel.
Generator runs at 600rpm and has 4 poles, what is the output frequency? - CORRECT
ANSWER 20hz
600/60=10 10x2=20
Hz = RPM divided by 60 X half of the poles
RPM = 60 X Frequency/ half of the poles
If a XOR gate was connected to a NOR gate and attached to an AND gate with a High
output. What is input of the XOR gate A&B? - ANSWER Both must be High
Using BINARY logic, what DIP switches must be on for a 128 bit 30 second timer set at
150% - ANSWER 1,3,4,6=45 seconds
30 seconds X 150%=45 seconds
1 2 4 8 16 32 64 128 128 BIT
1 2 3 4 5 6 7 8 DIP SWITCHES
++++
32+8+4+1=45 seconds
,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 - CORRECT
ANSWER 11 wires. You do not need the duplicates
How must a 9 lead 3 phase 480/240 motor be wired for High Voltage? - CORRECT
ANSWER L1-T1/4-7/L2-T3/5-8/L3-T3/6-9 high voltage
1-7/2-8/3-9/4-5-6 low voltage
There is voltage at the switch, but none at A, what is wrong? - ANSWER
Open at R2 or R1
What does a square with a darkened triangle in the right upper corner represent? -
ANSWER DC Relay
darkened lower triangle=Latching Relay
arrow=Timer
The close door limit switch is not working, you have power at points 35-8, no voltage at
1-S2 why? - ANSWER Door limit switch malfunction
Car is running normally, but the Fire Service buzzer will not shut off, Why? - CORRECT
ANSWER EHP 3-2 shorted
Relay STR has voltage, TRU has voltage, RU no voltage, why? - ANSWER
TRU 9/8 open
2nd floor PI lights then quickly shuts off, why? - ANSWER X1 4-6
Car will not travel to 2 without a 3 call, and will not go down to 3 without a 2 call? -
ANSWER 2F1 4-6
Sheet 3, why wont the motor start? - ANSWER MOL1 T/B
The step level switch on an escalator has been tripped, where do you check? -
ANSWER Upper and Lower Truss assemblies, trips if step sags more than 1/8th inch
You get a trouble call for an inoperable freight door. What must you do before you begin
work? - ANSWER Block open the door. LOTO. Barricades
You get shocked when attempting to move a car with a temp run bug, what is the
problem? - ANSWER Ground wire not hooked up
A motor needs a sleeve bearing replaced, what type of bearing do you need? -
ANSWER Friction bearing AKA Sleeve bearing.
, Anti-Friction Bearing AKA Ball bearing
7-foot platform with inside cab clearance of 6'8", what is the thickness of the cab walls?
- ANSWER 2-inch-thick walls
You notice Roughing on the Governor rope and Tail Sheave. What should you check? -
ANSWER Rope Diameter, measure rope and diameter for replacement
Car doors are dragging in the sill, how high should the car doors be above the sill? -
ANSWER ¼" to 3/8"
What type of safeties are required on a 300fpm car? - ANSWER Type B
wedge clamp
What stopping devices are required on vertical platforms? - ANSWER 2 pit
obstruction switches. 15lbs max pressure
What type of oil is required for sleeve bearings? - ANSWER Single
viscosity, non detergent
What is the maximum inclination for moving walks? - ANSWER 12 degrees
How does a GFI work? - ANSWER Detects an imbalance between Hot and
Neutral Wires
Who is required to provide MSDS or SDS for a solvent you are using? - CORRECT
ANSWER Your employer
How do emergency doors swing? - ANSWER Outwards
You have an EMT run with 3-90s, 2-45s, and a saddle bend. What is required? -
ANSWER An Intermediate pull box. 360 degrees is most bends for a
continuous pipe
What is the maximum distance between vertical race way supports? - CORRECT
ANSWER 15 feet
What is the smallest wire used inside travelers and outside of travelers? - CORRECT
ANSWER #20awg in traveler
#24awg outside traveler
What is the maximum distance between strain relief supports? - ANSWER
100 feet
