Kansas City Elevator Contractor Qualification
Examination Questions and Correct Answers
(Verified Answers) Plus Rationale 2027 Q&A|
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1. What is the primary purpose of an elevator governor?
A. To control cab lighting
B. To regulate door opening speed
C. To detect overspeed and initiate safety action
D. To increase motor horsepower
Answer: C. To detect overspeed and initiate safety action
Rationale: The governor is a critical elevator safety device designed to
detect excessive car speed. When an overspeed condition occurs, it can
initiate the mechanism that activates the car safeties and helps prevent
uncontrolled descent.
2. Which component provides the lifting force for a conventional
traction elevator?
,A. Counterweight guide
B. Traction machine
C. Door operator
D. Governor rope
Answer: B. Traction machine
Rationale: The traction machine drives the sheave and moves the hoist
ropes, which in turn move the elevator car and counterweight. The
machine may use an electric motor with geared or gearless construction
depending on the elevator design.
3. What is the primary function of an elevator counterweight?
A. To stop the doors from opening
B. To balance the weight of the car and a portion of its rated load
C. To operate the emergency alarm
D. To supply backup electrical power
Answer: B. To balance the weight of the car and a portion of its rated
load
Rationale: A counterweight reduces the amount of motor power
required to move the elevator by balancing the car and part of its rated
load. Proper counterweighting also contributes to efficient and
controlled operation.
, 4. Which elevator type commonly uses hydraulic pressure to move
the car?
A. Hydraulic elevator
B. Traction elevator
C. Winding-drum elevator
D. Vacuum elevator
Answer: A. Hydraulic elevator
Rationale: Hydraulic elevators use a pump and hydraulic fluid to create
pressure that moves a piston or jack. They are commonly used in low- to
mid-rise applications where travel requirements are moderate.
5. What is the purpose of elevator door interlocks?
A. To increase car speed
B. To prevent the elevator from operating when a landing door is not
properly secured
C. To reduce lighting consumption
D. To lubricate the door tracks
Answer: B. To prevent the elevator from operating when a landing
door is not properly secured
, Rationale: Door interlocks are safety devices that ensure landing doors
are closed and locked before the elevator can run. They help prevent
passengers from entering an open hoistway.
6. What should a contractor do before beginning major elevator
maintenance work?
A. Disable all building alarms permanently
B. Identify hazards and establish appropriate lockout/tagout
procedures
C. Remove all warning signs
D. Increase elevator operating speed
Answer: B. Identify hazards and establish appropriate lockout/tagout
procedures
Rationale: Elevator maintenance can expose workers to electrical,
mechanical, hydraulic, and gravitational hazards. Proper hazard
assessment and lockout/tagout procedures help prevent unexpected
startup or release of hazardous energy.
7. Which device is designed to stop an elevator car from excessive
downward movement?
A. Door restrictor
B. Car safety device
Examination 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 cab lighting
B. To regulate door opening speed
C. To detect overspeed and initiate safety action
D. To increase motor horsepower
Answer: C. To detect overspeed and initiate safety action
Rationale: The governor is a critical elevator safety device designed to
detect excessive car speed. When an overspeed condition occurs, it can
initiate the mechanism that activates the car safeties and helps prevent
uncontrolled descent.
2. Which component provides the lifting force for a conventional
traction elevator?
,A. Counterweight guide
B. Traction machine
C. Door operator
D. Governor rope
Answer: B. Traction machine
Rationale: The traction machine drives the sheave and moves the hoist
ropes, which in turn move the elevator car and counterweight. The
machine may use an electric motor with geared or gearless construction
depending on the elevator design.
3. What is the primary function of an elevator counterweight?
A. To stop the doors from opening
B. To balance the weight of the car and a portion of its rated load
C. To operate the emergency alarm
D. To supply backup electrical power
Answer: B. To balance the weight of the car and a portion of its rated
load
Rationale: A counterweight reduces the amount of motor power
required to move the elevator by balancing the car and part of its rated
load. Proper counterweighting also contributes to efficient and
controlled operation.
, 4. Which elevator type commonly uses hydraulic pressure to move
the car?
A. Hydraulic elevator
B. Traction elevator
C. Winding-drum elevator
D. Vacuum elevator
Answer: A. Hydraulic elevator
Rationale: Hydraulic elevators use a pump and hydraulic fluid to create
pressure that moves a piston or jack. They are commonly used in low- to
mid-rise applications where travel requirements are moderate.
5. What is the purpose of elevator door interlocks?
A. To increase car speed
B. To prevent the elevator from operating when a landing door is not
properly secured
C. To reduce lighting consumption
D. To lubricate the door tracks
Answer: B. To prevent the elevator from operating when a landing
door is not properly secured
, Rationale: Door interlocks are safety devices that ensure landing doors
are closed and locked before the elevator can run. They help prevent
passengers from entering an open hoistway.
6. What should a contractor do before beginning major elevator
maintenance work?
A. Disable all building alarms permanently
B. Identify hazards and establish appropriate lockout/tagout
procedures
C. Remove all warning signs
D. Increase elevator operating speed
Answer: B. Identify hazards and establish appropriate lockout/tagout
procedures
Rationale: Elevator maintenance can expose workers to electrical,
mechanical, hydraulic, and gravitational hazards. Proper hazard
assessment and lockout/tagout procedures help prevent unexpected
startup or release of hazardous energy.
7. Which device is designed to stop an elevator car from excessive
downward movement?
A. Door restrictor
B. Car safety device
