Unit 1 Quiz Review

When using a digital multimeter to test for amperage, how does the meter need to be placed in the circuit?

• parallel

• series

• at the beginning

• at the end

If measuring for current flow with an amp clamp what setting does your DMM need to be in?

• Volts AC

• Amps

• Resistance

• Volts DC

When current ramping what tools are needed?

• Amp clamp and DMM

• DMM

• Oscilloscope and Amp Clamp

• Oscilloscope

How do you test a relay?

• Listen for an audible click

• Use a DMM to measure resistance

• Use a DMM to measure voltage

• Use an oscilloscope

Technician A states that all scan tools are bidirectional. Technician B states that bidirectional scan tools may be used to activate certain components. Who is correct?

• Technician A

• Technician B

• Neither Technician A nor Technician B

• Both Technician A and Technician B

When using a scan tool you are viewing PIDs. What exactly are you looking at?

• DTCs

• Sensor Data

• Vehicle Status

• VIN Number

Tech A states that a relay is used to control a large amount of current with a small amount of current. Tech B states that a relay is used to protect the circuit. Who is correct?

• Tech A

• Tech B

• Both Tech A and Tech B

• Neither Tech A nor Tech B

How do fiber optic cables transmit data?

• Pulses of light

• CAN Bus

• Copper Wires

• Ultrasonic Communication

Which type of electrical fault will cause a fuse to blow?

• High Resistance

• Short to Power

• Short to Ground

• Open

Tech A states that to get total resistance of a series circuit you must add up all the resistors. Tech B states that to get total resistance of a parallel circuit you must use a special formula to calculate total circuit resistance. Who is correct?

• Tech A

• Tech B

• Both Tech A and Tech B

• Neither Tech A nor Tech B