AK Elevator Mechanic Exam Questions and
Correct Answers (Verified Answers) Plus
Rationale 2027 Q&A| Instant Download Pdf
1. What is the primary function of a traction elevator's
counterweight?
a. To increase motor speed
b. To operate the door locks
c. To balance a substantial portion of the car load
d. To prevent the governor from turning
Rationale: The counterweight balances the elevator car and a portion
of its rated load. This reduces the amount of motor power required to
move the car and improves the efficiency of the hoisting system.
2. Which component directly supports the elevator car in a
conventional traction system?
a. Door restrictor
b. Governor switch
,c. Hoist ropes
d. Terminal slow-down switch
Rationale: Hoist ropes connect the elevator car and counterweight
through the traction sheave. They transmit the lifting force generated
by the machine to move the car.
3. What is the purpose of a traction sheave?
a. To control car lighting
b. To open the landing doors
c. To transmit motor torque to the hoist ropes
d. To measure cab temperature
Rationale: The traction sheave has grooves that engage the hoist
ropes. Friction between the ropes and sheave allows the machine to
raise or lower the car and counterweight.
4. Which device detects excessive downward speed of an elevator
car?
a. Door operator
b. Selector
c. Overspeed governor
d. Traveling cable
,Rationale: The overspeed governor monitors elevator speed. If the car
exceeds a specified speed, the governor can initiate the safety system
to stop the car.
5. What is the main purpose of an elevator safety?
a. Increase elevator speed
b. Reduce door-opening time
c. Stop and hold the car if an overspeed or unintended movement
condition occurs
d. Provide emergency lighting
Rationale: Elevator safeties are mechanical devices designed to
engage the guide rails and stop the car under specified abnormal
conditions, providing an important layer of passenger protection.
6. What component provides the running surface that guides the
elevator car vertically?
a. Hoist rope
b. Guide rail
c. Traction sheave
d. Governor rope
, Rationale: Guide rails are rigid vertical members installed in the
hoistway. Guide shoes or rollers on the car and counterweight travel
along these rails.
7. What is the primary purpose of car guide shoes or guide rollers?
a. To operate the emergency alarm
b. To support the counterweight
c. To guide the car along the guide rails
d. To energize the motor
Rationale: Guide shoes or rollers maintain alignment between the
elevator car and its guide rails. They help control lateral movement as
the car travels through the hoistway.
8. Which type of elevator uses hydraulic pressure to move the car?
a. Traction elevator
b. Geared traction elevator
c. Hydraulic elevator
d. Counterweighted traction elevator
Rationale: Hydraulic elevators use a pump and hydraulic fluid to move
a piston or jack. They are commonly used where relatively low- to
mid-rise service is required.
9. What is the primary function of a hydraulic elevator pump?
Correct Answers (Verified Answers) Plus
Rationale 2027 Q&A| Instant Download Pdf
1. What is the primary function of a traction elevator's
counterweight?
a. To increase motor speed
b. To operate the door locks
c. To balance a substantial portion of the car load
d. To prevent the governor from turning
Rationale: The counterweight balances the elevator car and a portion
of its rated load. This reduces the amount of motor power required to
move the car and improves the efficiency of the hoisting system.
2. Which component directly supports the elevator car in a
conventional traction system?
a. Door restrictor
b. Governor switch
,c. Hoist ropes
d. Terminal slow-down switch
Rationale: Hoist ropes connect the elevator car and counterweight
through the traction sheave. They transmit the lifting force generated
by the machine to move the car.
3. What is the purpose of a traction sheave?
a. To control car lighting
b. To open the landing doors
c. To transmit motor torque to the hoist ropes
d. To measure cab temperature
Rationale: The traction sheave has grooves that engage the hoist
ropes. Friction between the ropes and sheave allows the machine to
raise or lower the car and counterweight.
4. Which device detects excessive downward speed of an elevator
car?
a. Door operator
b. Selector
c. Overspeed governor
d. Traveling cable
,Rationale: The overspeed governor monitors elevator speed. If the car
exceeds a specified speed, the governor can initiate the safety system
to stop the car.
5. What is the main purpose of an elevator safety?
a. Increase elevator speed
b. Reduce door-opening time
c. Stop and hold the car if an overspeed or unintended movement
condition occurs
d. Provide emergency lighting
Rationale: Elevator safeties are mechanical devices designed to
engage the guide rails and stop the car under specified abnormal
conditions, providing an important layer of passenger protection.
6. What component provides the running surface that guides the
elevator car vertically?
a. Hoist rope
b. Guide rail
c. Traction sheave
d. Governor rope
, Rationale: Guide rails are rigid vertical members installed in the
hoistway. Guide shoes or rollers on the car and counterweight travel
along these rails.
7. What is the primary purpose of car guide shoes or guide rollers?
a. To operate the emergency alarm
b. To support the counterweight
c. To guide the car along the guide rails
d. To energize the motor
Rationale: Guide shoes or rollers maintain alignment between the
elevator car and its guide rails. They help control lateral movement as
the car travels through the hoistway.
8. Which type of elevator uses hydraulic pressure to move the car?
a. Traction elevator
b. Geared traction elevator
c. Hydraulic elevator
d. Counterweighted traction elevator
Rationale: Hydraulic elevators use a pump and hydraulic fluid to move
a piston or jack. They are commonly used where relatively low- to
mid-rise service is required.
9. What is the primary function of a hydraulic elevator pump?
