MLR CH24

If an insulated wire rubbed through a part of the insulation and the wire conductor touched the steel body of a vehicle, the type of failure would be called a(n) _______ .

• Short-to-voltage
• Short-to-ground
• Open
• Chassis ground

If two insulated wires were to melt together where the copper conductors touched each other, the type of failure would be called a(n) _______ .

• Short-to-voltage
• Short-to-ground
• Open
• Floating ground

If 12 volts are being applied to a resistance of 3 ohms, _______ amperes will flow.

• 12.0
• 3.0
• 4.0
• 36.0

A complete circuit has______.

• A power side electrical path
• An electrical load device
• A return path
• All of the above

An electrical protection device is usually a _____.

• Fuse
• Wire
• Electrical load device
• Switch

High resistance in an electrical circuit can cause _______.

• Dim lights
• Slow motor operation
• Clicking of relays or solenoids
• All of the above

If the voltage increases in a circuit, what happens to the current (amperes) if the resistance remains the same?

• Increases
• Decreases
• Remains the same
• Cannot be determined

If 200 amperes flow from the positive terminal of a battery and operate the starter motor, how many amperes will flow back to the negative terminal of the battery?

• Cannot be determined
• Zero
• One half (about 100 amperes)
• 200 amperes

What is the symbol for voltage used in calculations?

• R
• E
• EMF
• I

Which circuit failure is most likely to cause the fuse to blow?

• Open
• Short-to-voltage
• Short-to-ground
• High resistance