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

• Oscilloscope
• Tachometer

• Clamp meter

When using your DMM test leads and you get a lower voltage out of your outgoing (secondary) winding, what could be two possible reasons?

• Excessive voltage from the power source
• 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?

• 1
• 3
• 2
• 4

What are limit switches used for?

• Limit switches are used for detecting the position of objects and controlling machinery.
• Limit switches are used for measuring temperature.
• Limit switches are used for storing energy.
• Limit switches are used for generating electricity.

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?

• Yes, fuses can be reused after they are blown.
• Fuses can be repaired and reused.
• Fuses can be reset after being blown.
• No, fuses are not reusable after they are blown.

Fill in the blank: The most common type of household circuit breaker is ______.

• Thermal

• Solid

• Hydraulic

• Pneumatic