Certified Escalator Maintenance
Technician Exam Practice Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A
Instant Download Pdf
1. What is the primary function of an escalator step chain?
A) Control lighting system
B) Drive and synchronize step movement
C) Provide handrail tension
D) Reduce electrical load
Answer: Drive and synchronize step movement
Rationale: The step chain ensures all steps move in a continuous loop at
synchronized speed for safe passenger transport.
2. Which component engages with the step chain to move the steps?
A) Comb plate
B) Handrail
C) Step rollers and sprockets
D) Skirt panel
Answer: Step rollers and sprockets
Rationale: Sprockets and rollers transfer motion from the drive system to the
steps.
,3. What is the purpose of the comb plate?
A) Support the motor
B) Guide passengers onto and off the steps safely
C) Lubricate steps
D) Control speed
Answer: Guide passengers onto and off the steps safely
Rationale: The comb plate reduces gaps and helps prevent debris entry and
passenger tripping.
4. What device is used to stop an escalator in an emergency?
A) Speed governor
B) Emergency stop button
C) Drive motor
D) Step chain
Answer: Emergency stop button
Rationale: Emergency stop buttons allow immediate shutdown in hazardous
situations.
5. What is the function of the handrail system?
A) Drive the escalator
B) Provide passenger support and balance
C) Cool the motor
D) Align steps
Answer: Provide passenger support and balance
Rationale: Handrails move at synchronized speed to help passengers maintain
stability.
6. What is a common cause of escalator step misalignment?
A) Excess lubrication
, B) Worn step rollers
C) Bright lighting
D) Low voltage
Answer: Worn step rollers
Rationale: Worn rollers affect step tracking and alignment.
7. What system controls escalator speed?
A) Hydraulic pump
B) Variable frequency drive (VFD)
C) Gear reducer only
D) Manual brake
Answer: Variable frequency drive (VFD)
Rationale: VFDs regulate motor speed smoothly and efficiently.
8. What is the purpose of a step upthrust device?
A) Increase speed
B) Detect upward step movement and trigger shutdown
C) Heat motor
D) Control lighting
Answer: Detect upward step movement and trigger shutdown
Rationale: It prevents unsafe step lifting conditions.
9. What is the main function of the escalator brake?
A) Increase torque
B) Stop or hold the escalator in position
C) Reduce noise
D) Cool system
Answer: Stop or hold the escalator in position
Rationale: Brakes ensure controlled stopping and prevent rollback.
Technician Exam Practice Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A
Instant Download Pdf
1. What is the primary function of an escalator step chain?
A) Control lighting system
B) Drive and synchronize step movement
C) Provide handrail tension
D) Reduce electrical load
Answer: Drive and synchronize step movement
Rationale: The step chain ensures all steps move in a continuous loop at
synchronized speed for safe passenger transport.
2. Which component engages with the step chain to move the steps?
A) Comb plate
B) Handrail
C) Step rollers and sprockets
D) Skirt panel
Answer: Step rollers and sprockets
Rationale: Sprockets and rollers transfer motion from the drive system to the
steps.
,3. What is the purpose of the comb plate?
A) Support the motor
B) Guide passengers onto and off the steps safely
C) Lubricate steps
D) Control speed
Answer: Guide passengers onto and off the steps safely
Rationale: The comb plate reduces gaps and helps prevent debris entry and
passenger tripping.
4. What device is used to stop an escalator in an emergency?
A) Speed governor
B) Emergency stop button
C) Drive motor
D) Step chain
Answer: Emergency stop button
Rationale: Emergency stop buttons allow immediate shutdown in hazardous
situations.
5. What is the function of the handrail system?
A) Drive the escalator
B) Provide passenger support and balance
C) Cool the motor
D) Align steps
Answer: Provide passenger support and balance
Rationale: Handrails move at synchronized speed to help passengers maintain
stability.
6. What is a common cause of escalator step misalignment?
A) Excess lubrication
, B) Worn step rollers
C) Bright lighting
D) Low voltage
Answer: Worn step rollers
Rationale: Worn rollers affect step tracking and alignment.
7. What system controls escalator speed?
A) Hydraulic pump
B) Variable frequency drive (VFD)
C) Gear reducer only
D) Manual brake
Answer: Variable frequency drive (VFD)
Rationale: VFDs regulate motor speed smoothly and efficiently.
8. What is the purpose of a step upthrust device?
A) Increase speed
B) Detect upward step movement and trigger shutdown
C) Heat motor
D) Control lighting
Answer: Detect upward step movement and trigger shutdown
Rationale: It prevents unsafe step lifting conditions.
9. What is the main function of the escalator brake?
A) Increase torque
B) Stop or hold the escalator in position
C) Reduce noise
D) Cool system
Answer: Stop or hold the escalator in position
Rationale: Brakes ensure controlled stopping and prevent rollback.
