ESCALATOR TECHNICIAN PRACTICE EXAM
Questions With Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
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1. What is the primary function of an escalator step chain?
A. To power the motor
B. To support handrail movement
C. To drive and synchronize step movement
D. To control lighting system
Answer: C
Rationale: The step chain connects and drives the steps, ensuring
synchronized movement along the escalator path.
2. Which component is responsible for controlling the speed of an
escalator?
A. Step roller
B. Drive motor and controller
C. Comb plate
D. Skirt panel
Answer: B
Rationale: The drive motor combined with the controller regulates
escalator speed and operation.
,3. What safety device stops an escalator if a step is missing or
misaligned?
A. Handrail switch
B. Skirt switch
C. Comb impact device
D. Step sag sensor
Answer: C
Rationale: The comb impact device detects abnormal step
conditions and stops the escalator to prevent injury.
4. What is the purpose of the escalator handrail?
A. To support step weight
B. To provide passenger stability
C. To drive the escalator
D. To cool the motor
Answer: B
Rationale: The handrail provides balance and support for
passengers while riding.
5. Which part guides the steps at the top and bottom landing?
A. Truss
B. Comb plate
C. Skirt brush
D. Balustrade
Answer: B
Rationale: The comb plate helps guide feet safely on and off the
moving steps.
,6. What is the function of the escalator truss?
A. To provide lighting
B. To house and support all escalator components
C. To control speed
D. To lubricate parts
Answer: B
Rationale: The truss is the structural frame that supports the
escalator system.
7. What happens when the emergency stop button is pressed?
A. Escalator speed increases
B. Escalator reverses direction
C. Escalator stops immediately
D. Lights turn off only
Answer: C
Rationale: The emergency stop button immediately cuts power to
stop the escalator.
8. Which component prevents passengers from being caught
between steps and side panels?
A. Step chain
B. Skirt brush
C. Handrail
D. Drive sprocket
Answer: B
, Rationale: Skirt brushes reduce the risk of entrapment by guiding
objects away from gaps.
9. What type of motor is commonly used in modern escalators?
A. DC motor only
B. Hydraulic motor
C. Three-phase AC induction motor
D. Solar motor
Answer: C
Rationale: Most escalators use efficient and durable three-phase
AC induction motors.
10. What is the purpose of the step tread grooves?
A. Decoration
B. Improve traction and reduce slipping
C. Increase speed
D. Reduce weight
Answer: B
Rationale: Grooves help provide grip for passenger safety.
11. Which device detects overspeed in an escalator?
A. Brake coil
B. Speed governor
C. Comb plate
D. Step chain
Answer: B
Questions With Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary function of an escalator step chain?
A. To power the motor
B. To support handrail movement
C. To drive and synchronize step movement
D. To control lighting system
Answer: C
Rationale: The step chain connects and drives the steps, ensuring
synchronized movement along the escalator path.
2. Which component is responsible for controlling the speed of an
escalator?
A. Step roller
B. Drive motor and controller
C. Comb plate
D. Skirt panel
Answer: B
Rationale: The drive motor combined with the controller regulates
escalator speed and operation.
,3. What safety device stops an escalator if a step is missing or
misaligned?
A. Handrail switch
B. Skirt switch
C. Comb impact device
D. Step sag sensor
Answer: C
Rationale: The comb impact device detects abnormal step
conditions and stops the escalator to prevent injury.
4. What is the purpose of the escalator handrail?
A. To support step weight
B. To provide passenger stability
C. To drive the escalator
D. To cool the motor
Answer: B
Rationale: The handrail provides balance and support for
passengers while riding.
5. Which part guides the steps at the top and bottom landing?
A. Truss
B. Comb plate
C. Skirt brush
D. Balustrade
Answer: B
Rationale: The comb plate helps guide feet safely on and off the
moving steps.
,6. What is the function of the escalator truss?
A. To provide lighting
B. To house and support all escalator components
C. To control speed
D. To lubricate parts
Answer: B
Rationale: The truss is the structural frame that supports the
escalator system.
7. What happens when the emergency stop button is pressed?
A. Escalator speed increases
B. Escalator reverses direction
C. Escalator stops immediately
D. Lights turn off only
Answer: C
Rationale: The emergency stop button immediately cuts power to
stop the escalator.
8. Which component prevents passengers from being caught
between steps and side panels?
A. Step chain
B. Skirt brush
C. Handrail
D. Drive sprocket
Answer: B
, Rationale: Skirt brushes reduce the risk of entrapment by guiding
objects away from gaps.
9. What type of motor is commonly used in modern escalators?
A. DC motor only
B. Hydraulic motor
C. Three-phase AC induction motor
D. Solar motor
Answer: C
Rationale: Most escalators use efficient and durable three-phase
AC induction motors.
10. What is the purpose of the step tread grooves?
A. Decoration
B. Improve traction and reduce slipping
C. Increase speed
D. Reduce weight
Answer: B
Rationale: Grooves help provide grip for passenger safety.
11. Which device detects overspeed in an escalator?
A. Brake coil
B. Speed governor
C. Comb plate
D. Step chain
Answer: B
