ELEVATOR MECHANIC
CERTIFICATION BUNDLE 2026
COMPLETE QUESTIONS AND
VERIFIED ANSWERS
◉ What are the consequences of misaligned joints on a Rack and
Pinion? Answer: Broken Gear teeth. CWT derailment. Excessive wear/
crease the surface of the tube
◉ There is a noise coming from a freight door. The sheave is moving,
but the chain is not. What is the problem? Answer: Oil on the drive
chain
◉ What is the effect when you change a sling angle from 60 degrees to
30 degrees? Answer: More tension, less capacity. Any angle 30 or less is
dangerous
◉ Generator runs at 600rpm and has 4 poles, what is the output
frequency? Answer: 20hz
600/60=10 10x2=20 RPM 60 x frequency / pole/2
◉ 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 Answer: 11 wires. You do not need
the duplicates
,◉ How must a 9 lead 480/240 motor be wired for High Voltage?
Answer: 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
◉ There is voltage at the switch, but none at A, what is wrong? Answer:
Open at R2 or R1
◉ 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
◉ 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
◉ 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
◉ 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
pan switches. 15lbs max pressure
, ◉ What are the most common features of Load Weigh? Answer: Control
generator field and Inside express operation
◉ At what distance from closed does the gate switch operate? Answer: 2
inches
◉ If the DC output of a 3 phase rectifier is lower than specified, what is
the problem? Answer: AC fuse is blown.
1 input phase is missing
◉ What is the overlap minimum on 2 & 3 speed doors? Answer:
Horizontal ½ inch Vertical 1 inch
◉ What are minimum and maximum clearance between sill and car
doors? Answer: ¼ inch Minimum 3/8-inch Maximum
◉ What is maximum leading edges for center opening doors? Answer:
½ inch
◉ What is minimum sill to gib engagement? Answer: ¼ inch
◉ What is minimum and maximum sill to sill gap? Answer: ½ inch to 1
½ inch
◉ 1 gallon equals how many cubic feet? Answer: .134 cubic feet
CERTIFICATION BUNDLE 2026
COMPLETE QUESTIONS AND
VERIFIED ANSWERS
◉ What are the consequences of misaligned joints on a Rack and
Pinion? Answer: Broken Gear teeth. CWT derailment. Excessive wear/
crease the surface of the tube
◉ There is a noise coming from a freight door. The sheave is moving,
but the chain is not. What is the problem? Answer: Oil on the drive
chain
◉ What is the effect when you change a sling angle from 60 degrees to
30 degrees? Answer: More tension, less capacity. Any angle 30 or less is
dangerous
◉ Generator runs at 600rpm and has 4 poles, what is the output
frequency? Answer: 20hz
600/60=10 10x2=20 RPM 60 x frequency / pole/2
◉ 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 Answer: 11 wires. You do not need
the duplicates
,◉ How must a 9 lead 480/240 motor be wired for High Voltage?
Answer: 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
◉ There is voltage at the switch, but none at A, what is wrong? Answer:
Open at R2 or R1
◉ 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
◉ 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
◉ 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
◉ 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
pan switches. 15lbs max pressure
, ◉ What are the most common features of Load Weigh? Answer: Control
generator field and Inside express operation
◉ At what distance from closed does the gate switch operate? Answer: 2
inches
◉ If the DC output of a 3 phase rectifier is lower than specified, what is
the problem? Answer: AC fuse is blown.
1 input phase is missing
◉ What is the overlap minimum on 2 & 3 speed doors? Answer:
Horizontal ½ inch Vertical 1 inch
◉ What are minimum and maximum clearance between sill and car
doors? Answer: ¼ inch Minimum 3/8-inch Maximum
◉ What is maximum leading edges for center opening doors? Answer:
½ inch
◉ What is minimum sill to gib engagement? Answer: ¼ inch
◉ What is minimum and maximum sill to sill gap? Answer: ½ inch to 1
½ inch
◉ 1 gallon equals how many cubic feet? Answer: .134 cubic feet
