Washington Elevator Mechanic Certification
Examination Practice Questions and Correct
Answers (Verified Answers) Plus Rationale
2027 Q&A| Instant Download Pdf
1. What is the primary purpose of an elevator governor?
A. To control normal operating speed
B. To regulate cab lighting
C. To detect overspeed and initiate the safety system
D. To increase motor torque
Rationale: The governor is a critical elevator safety device. If the
elevator car exceeds a predetermined speed in the downward
direction, the governor detects the overspeed condition and activates
the appropriate safety mechanism.
2. Which component is primarily responsible for supporting and
guiding an elevator car along its travel path?
,A. Hoist ropes
B. Counterweight
C. Door operator
D. Guide rails
Rationale: Guide rails provide the fixed vertical path for the elevator
car and counterweight. Guide shoes or roller guides attached to the
moving equipment engage the rails and help maintain alignment.
3. What is the principal function of a counterweight in a traction
elevator?
A. Prevent the doors from opening
B. Balance a substantial portion of the car load
C. Operate the governor
D. Provide emergency lighting
Rationale: A counterweight reduces the amount of motor power
required to move the elevator by balancing the weight of the car and
a specified portion of its rated load.
4. Which device normally prevents an elevator from operating when
the hoistway door is not properly closed and locked?
,A. Governor
B. Buffer
C. Door interlock
D. Traction sheave
Rationale: Door interlocks are safety devices designed to verify that
hoistway doors are closed and locked before the elevator is permitted
to run. This prevents operation with an unsafe open hoistway
entrance.
5. What is the main purpose of an elevator buffer?
A. Increase elevator speed
B. Lubricate guide rails
C. Control door closing force
D. Provide a means of energy absorption at the bottom of the
hoistway
Rationale: Buffers are located at the bottom of the hoistway and are
intended to absorb and dissipate energy if the car or counterweight
travels beyond its normal limits.
, 6. In a traction elevator, what component provides the frictional
connection between the hoist ropes and the drive system?
A. Governor pulley
B. Deflector roller
C. Traction sheave
D. Car sling
Rationale: The traction sheave has specially shaped grooves that
engage the hoist ropes. Proper traction between the ropes and sheave
allows the machine to move the car and counterweight.
7. What is the purpose of elevator guide shoes?
A. To operate the brakes
B. To close the hoistway doors
C. To guide the car or counterweight along the guide rails
D. To tension the governor rope
Rationale: Guide shoes or roller guides maintain the position of the
elevator car or counterweight relative to the guide rails. They help
provide stable, controlled movement through the hoistway.
Examination Practice Questions and Correct
Answers (Verified Answers) Plus Rationale
2027 Q&A| Instant Download Pdf
1. What is the primary purpose of an elevator governor?
A. To control normal operating speed
B. To regulate cab lighting
C. To detect overspeed and initiate the safety system
D. To increase motor torque
Rationale: The governor is a critical elevator safety device. If the
elevator car exceeds a predetermined speed in the downward
direction, the governor detects the overspeed condition and activates
the appropriate safety mechanism.
2. Which component is primarily responsible for supporting and
guiding an elevator car along its travel path?
,A. Hoist ropes
B. Counterweight
C. Door operator
D. Guide rails
Rationale: Guide rails provide the fixed vertical path for the elevator
car and counterweight. Guide shoes or roller guides attached to the
moving equipment engage the rails and help maintain alignment.
3. What is the principal function of a counterweight in a traction
elevator?
A. Prevent the doors from opening
B. Balance a substantial portion of the car load
C. Operate the governor
D. Provide emergency lighting
Rationale: A counterweight reduces the amount of motor power
required to move the elevator by balancing the weight of the car and
a specified portion of its rated load.
4. Which device normally prevents an elevator from operating when
the hoistway door is not properly closed and locked?
,A. Governor
B. Buffer
C. Door interlock
D. Traction sheave
Rationale: Door interlocks are safety devices designed to verify that
hoistway doors are closed and locked before the elevator is permitted
to run. This prevents operation with an unsafe open hoistway
entrance.
5. What is the main purpose of an elevator buffer?
A. Increase elevator speed
B. Lubricate guide rails
C. Control door closing force
D. Provide a means of energy absorption at the bottom of the
hoistway
Rationale: Buffers are located at the bottom of the hoistway and are
intended to absorb and dissipate energy if the car or counterweight
travels beyond its normal limits.
, 6. In a traction elevator, what component provides the frictional
connection between the hoist ropes and the drive system?
A. Governor pulley
B. Deflector roller
C. Traction sheave
D. Car sling
Rationale: The traction sheave has specially shaped grooves that
engage the hoist ropes. Proper traction between the ropes and sheave
allows the machine to move the car and counterweight.
7. What is the purpose of elevator guide shoes?
A. To operate the brakes
B. To close the hoistway doors
C. To guide the car or counterweight along the guide rails
D. To tension the governor rope
Rationale: Guide shoes or roller guides maintain the position of the
elevator car or counterweight relative to the guide rails. They help
provide stable, controlled movement through the hoistway.
