CET A6.3.3 - TROUBLESHOOTING EXAM QUESTIONS WELL ANSWERED LATEST UPDATE 2026
When troubleshooting elevator controllers: - Answers All of the above
The safety of the public is priority
Have full control of the elevator
Know what your actions can result in
A high percentage of elevator calls are related to doors failing to close. - Answers True
A phase 3 rectifier has a minimum of - Answers 6 diodes
A good diode will show a voltage drop of 0.5 to 0.6 VDC when measured with a meter via: - Answers
Anode (red) to cathode (black)
When troubleshooting a problem which is not obvious, a CET should run the elevator ______ to
ensure it is ready to return to service. - Answers 60 minutes.
A fuse that blows repeatedly after being changed indicates a deeper problem needed to be
troubleshot further. The next step is to: - Answers Identify the wire that has the short.
Solid lines shown on prints represent typically denote: - Answers Factory wires
In a Ward-Leonard system, the predominant type of problem is: - Answers Misleveling
Leveling problems cause almost ______% of injury accidents. - Answers 50
When running the car on automatic from the machine room, be sure to: - Answers Verify that no one
is in the car and disable the doors.
When megging a generator armature, you want a resistance above: - Answers 1 megaohm
Generators found with low resistance can sometimes be resolved by - Answers Blowing out the
generator.
When megging a DC motor or generator armature, you must first: - Answers Remove the brushes
from contacting the armature.
When troubleshooting leveling issues, it is important to understand and know that the brake is
functioning properly. - Answers True.
All Ward-Leonard systems have a series of relays that add or remove resistance in the generator field
for the purpose of: - Answers Accelerating or decelerating.
Going from a lower voltage to a higher voltage is _______ a signal, and going from a higher voltage to
a lower voltage is ______ a signal. - Answers Amplifying, reducing
When troubleshooting elevator controllers: - Answers All of the above
The safety of the public is priority
Have full control of the elevator
Know what your actions can result in
A high percentage of elevator calls are related to doors failing to close. - Answers True
A phase 3 rectifier has a minimum of - Answers 6 diodes
A good diode will show a voltage drop of 0.5 to 0.6 VDC when measured with a meter via: - Answers
Anode (red) to cathode (black)
When troubleshooting a problem which is not obvious, a CET should run the elevator ______ to
ensure it is ready to return to service. - Answers 60 minutes.
A fuse that blows repeatedly after being changed indicates a deeper problem needed to be
troubleshot further. The next step is to: - Answers Identify the wire that has the short.
Solid lines shown on prints represent typically denote: - Answers Factory wires
In a Ward-Leonard system, the predominant type of problem is: - Answers Misleveling
Leveling problems cause almost ______% of injury accidents. - Answers 50
When running the car on automatic from the machine room, be sure to: - Answers Verify that no one
is in the car and disable the doors.
When megging a generator armature, you want a resistance above: - Answers 1 megaohm
Generators found with low resistance can sometimes be resolved by - Answers Blowing out the
generator.
When megging a DC motor or generator armature, you must first: - Answers Remove the brushes
from contacting the armature.
When troubleshooting leveling issues, it is important to understand and know that the brake is
functioning properly. - Answers True.
All Ward-Leonard systems have a series of relays that add or remove resistance in the generator field
for the purpose of: - Answers Accelerating or decelerating.
Going from a lower voltage to a higher voltage is _______ a signal, and going from a higher voltage to
a lower voltage is ______ a signal. - Answers Amplifying, reducing
