ELEVATOR MECHANIC LICENSING EXAM
Questions with Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1.
What is the primary function of an elevator hoisting machine?
A. Control lighting
B. Move the elevator car using motor and traction system
C. Regulate building electricity
D. Control HVAC systems
Correct Answer: B
The hoisting machine provides mechanical movement of the elevator car.
2.
What is a counterweight used for in traction elevators?
A. Increase car speed
B. Balance car weight and reduce motor load
C. Control lighting
D. Increase braking force
Correct Answer: B
Counterweights reduce energy required to move the car.
3.
What is a governor in an elevator system?
,A. Electrical breaker
B. Overspeed safety device
C. Door operator
D. Motor controller
Correct Answer: B
Detects overspeed and activates safety braking system.
4.
What is the function of safety brakes in elevators?
A. Control speed normally
B. Engage during overspeed or failure
C. Increase motor torque
D. Balance counterweight
Correct Answer: B
Stops car during emergency or overspeed.
5. (Case-Based)
An elevator suddenly stops between floors and will not move. First action?
A. Force door open
B. Check emergency stop and safety circuits
C. Replace motor
D. Increase voltage
Correct Answer: B
Safety circuits must be verified before any action.
6.
What type of motor is commonly used in modern traction elevators?
,A. DC series motor only
B. AC variable frequency drive motor
C. Diesel engine
D. Hydraulic pump only
Correct Answer: B
VFD-controlled AC motors provide smooth operation.
7.
What is a hoistway?
A. Elevator control panel
B. Vertical shaft where elevator travels
C. Motor room only
D. Door system
Correct Answer: B
Enclosed vertical passage for elevator movement.
8.
What is a buffer in elevator systems?
A. Door sensor
B. Shock-absorbing device at bottom of shaft
C. Motor control unit
D. Lighting system
Correct Answer: B
Absorbs impact if car overtravels downward.
9.
What is a hydraulic elevator powered by?
, A. Air pressure
B. Fluid pressure from hydraulic pump
C. Gravity only
D. Electric cables only
Correct Answer: B
Uses hydraulic fluid to move piston.
10.
What is the main disadvantage of hydraulic elevators?
A. High speed
B. Environmental fluid leakage risk
C. No maintenance required
D. High efficiency
Correct Answer: B
Hydraulic oil leaks are environmental hazards.
11.
What is an elevator control panel responsible for?
A. Structural support
B. Operating logic and movement commands
C. Lighting only
D. Plumbing control
Correct Answer: B
Controls car movement and safety logic.
12.
What is door interlock purpose?
Questions with Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1.
What is the primary function of an elevator hoisting machine?
A. Control lighting
B. Move the elevator car using motor and traction system
C. Regulate building electricity
D. Control HVAC systems
Correct Answer: B
The hoisting machine provides mechanical movement of the elevator car.
2.
What is a counterweight used for in traction elevators?
A. Increase car speed
B. Balance car weight and reduce motor load
C. Control lighting
D. Increase braking force
Correct Answer: B
Counterweights reduce energy required to move the car.
3.
What is a governor in an elevator system?
,A. Electrical breaker
B. Overspeed safety device
C. Door operator
D. Motor controller
Correct Answer: B
Detects overspeed and activates safety braking system.
4.
What is the function of safety brakes in elevators?
A. Control speed normally
B. Engage during overspeed or failure
C. Increase motor torque
D. Balance counterweight
Correct Answer: B
Stops car during emergency or overspeed.
5. (Case-Based)
An elevator suddenly stops between floors and will not move. First action?
A. Force door open
B. Check emergency stop and safety circuits
C. Replace motor
D. Increase voltage
Correct Answer: B
Safety circuits must be verified before any action.
6.
What type of motor is commonly used in modern traction elevators?
,A. DC series motor only
B. AC variable frequency drive motor
C. Diesel engine
D. Hydraulic pump only
Correct Answer: B
VFD-controlled AC motors provide smooth operation.
7.
What is a hoistway?
A. Elevator control panel
B. Vertical shaft where elevator travels
C. Motor room only
D. Door system
Correct Answer: B
Enclosed vertical passage for elevator movement.
8.
What is a buffer in elevator systems?
A. Door sensor
B. Shock-absorbing device at bottom of shaft
C. Motor control unit
D. Lighting system
Correct Answer: B
Absorbs impact if car overtravels downward.
9.
What is a hydraulic elevator powered by?
, A. Air pressure
B. Fluid pressure from hydraulic pump
C. Gravity only
D. Electric cables only
Correct Answer: B
Uses hydraulic fluid to move piston.
10.
What is the main disadvantage of hydraulic elevators?
A. High speed
B. Environmental fluid leakage risk
C. No maintenance required
D. High efficiency
Correct Answer: B
Hydraulic oil leaks are environmental hazards.
11.
What is an elevator control panel responsible for?
A. Structural support
B. Operating logic and movement commands
C. Lighting only
D. Plumbing control
Correct Answer: B
Controls car movement and safety logic.
12.
What is door interlock purpose?
