WorksheetsTroubleshooting Video Assignment Quiz
Total questions: 18
Worksheet time: 9mins
What can you do if a shiny object turns on a retroreflective sensor’s output instead of the reflector?
Adjust the sensor angle
Clean the sensor
Replace the sensor
Use a different sensor
Do transformers run on AC or DC power?
AC
DC
Both
Neither
Which troubleshooting tool should you use to check the incoming voltage to a
transformer to make sure you are getting the correct voltage?
Digital Multimeter
Tachometer
When using your DMM test leads and you get a lower voltage out of your outgoing (secondary) winding, what could be two possible reasons?
Faulty transformer winding or incorrect bridge connected.
Short circuit in the primary winding or an open circuit in the secondary
Incorrect DMM settings or wrong transformer
How many general types of limit switches are there?
What are limit switches used for?
What are fuses used for?
To conduct electricity
To protect circuits
To increase voltage
To store energy.
Why are fuses encased with a non combustible material?
To prevent the spread of fire in case the fuse blows due to excessive current
To enhance conductivity
To reduce cost
To improve aesthetics
Are fuses reusable after they are blown?
Fill in the blank: The most common type of household circuit breaker is ______.
Thermal
Solid
Hydraulic
Pneumatic
How long does it take for a circuit breaker to trip?
Only on Monday's
Within Milliseconds of detecting too much current, but depends on how much current and type of breaker
What part in the circuit breaker causes the breaker to trip?
What should be looked for during a visual inspection of a contactor?
Loose connections
Rust
Proper alignment
All of the above
How can a contactor be tested for continuity?
What is the preferred multimeter setting for troubleshooting a solenoid?
Voltage
Resistance
Current
Capacitance
What is a common cause for bad continuity on solenoids?
What is the primary function of the control valve?
What happens when a control valve fails?
