#1
What is the primary function of an elevator safety brake?
To stop the elevator in case of an emergency
ExplanationEmergency stopping in emergencies.
#2
Which type of elevator system is commonly used in low-rise buildings and requires a hydraulic pump to move the elevator car?
Hydraulic elevator
ExplanationHydraulic system for low-rise buildings with pump-driven movement.
#3
What is the purpose of the interlock system in an elevator?
To prevent the elevator from moving unless the doors are securely closed
ExplanationDoor-secure interlock system for movement prevention.
#4
What is the purpose of the door interlock system in an elevator?
To prevent the elevator from moving unless all doors are closed
ExplanationMovement prevention unless all doors are closed by the interlock system.
#5
What is the purpose of the overspeed governor in an elevator system?
To measure and control the elevator's speed
ExplanationMeasurement and control of elevator speed by the overspeed governor.
#6
Which type of elevator drive system is known for its smooth and energy-efficient operation?
Traction drive
ExplanationSmooth and energy-efficient traction drive.
#7
What is the purpose of the governor in an elevator system?
To measure and control the speed of the elevator
ExplanationSpeed measurement and control by the governor.
#8
What is the purpose of the pit in an elevator shaft?
To house the elevator machinery
ExplanationHousing for elevator machinery located in the pit.
#9
Which safety device is designed to prevent the elevator from exceeding its rated speed?
Overspeed governor
ExplanationGovernor to prevent exceeding rated speed.
#10
In elevator terminology, what does the term 'hoistway' refer to?
The shaft or enclosure that houses the elevator
ExplanationShaft or enclosure housing the elevator.
#11
In elevator mechanics, what does the term 'counterweight' refer to?
A weight used to balance the load in the elevator car
ExplanationBalance weight for load stability.
#12
What safety feature is activated when an elevator door encounters an obstruction while closing?
Door reversal mechanism
ExplanationDoor automatically reverses on obstruction.
#13
What is the purpose of the buffer in an elevator system?
To absorb kinetic energy in case of a collision
ExplanationAbsorption of kinetic energy in collisions.
#14
In elevator maintenance, what does the term 'rope-to-sheave ratio' refer to?
The ratio of elevator ropes to sheaves in the pulley system
ExplanationRatio of ropes to sheaves in the pulley system.
#15
What is the purpose of the slack rope switch in an elevator system?
To detect excessive slack in the elevator ropes
ExplanationDetection of excessive slack in elevator ropes.