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AUT 242-CHAPTER 2 EXAM QUESTIONS AND
ANSWERS 100% PASS
1. What is included in a complete electrical circuit? - ANSWER ✔✔-Every complete circuit contains the
following part: Power source, protection, power path, electrical load and return path (ground)
2. What is the difference between a short-to-voltage and a short-to-ground? - ANSWER ✔✔-Short-to-
voltage occurs when the power side of one circuit is electrically connected to the power side of another
circuit. Short-to-ground is a type of short circuit that occurs when the current bypasses part of the normal
circuit and flows directly to ground
3. What is the difference between an electrical open and a short? - ANSWER ✔✔-Electrical open in a
circuit breaks the path of current flow. The open can be any break in the power side, load, or ground side
of a circuit. Short is a complete circuit in which the current usually bypasses some or all of the resistance
in the circuit and it involves the power side of the circuit.
4. What is Ohm's law? - ANSWER ✔✔-It requires 1 volt to push 1 ampere through 1 ohm of resistance.
This means that if the voltage is doubled, then the number of amperes of current flowing through a
circuit will also double if the resistance of the circuit remains the same.
5. What occurs to current flow (amperes) and wattage if the resistance of a circuit is increased because of
a corroded connection? - ANSWER ✔✔-The current flow (amperes) stays the same and the wattages
increases.
1. 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 - ANSWER ✔✔-a(n) (b) short-to-ground
2. If two insulated wires were to melt together where the copper conductors touched each other, the type
of failure would be called a(n) - ANSWER ✔✔-(a) short-to-voltage
3. If 12 volts are being applied to a resistance of 3 ohms, - ANSWER ✔✔-(c) 4 amperes will flow.
4. How many watts are consumed by a light bulb if 1.2 amperes are measured when 12 volts are applied?
- ANSWER ✔✔-(a) 14.4 watts
Created by Katelyn Whitman © 2025, All Rights Reserved.
AUT 242-CHAPTER 2 EXAM QUESTIONS AND
ANSWERS 100% PASS
1. What is included in a complete electrical circuit? - ANSWER ✔✔-Every complete circuit contains the
following part: Power source, protection, power path, electrical load and return path (ground)
2. What is the difference between a short-to-voltage and a short-to-ground? - ANSWER ✔✔-Short-to-
voltage occurs when the power side of one circuit is electrically connected to the power side of another
circuit. Short-to-ground is a type of short circuit that occurs when the current bypasses part of the normal
circuit and flows directly to ground
3. What is the difference between an electrical open and a short? - ANSWER ✔✔-Electrical open in a
circuit breaks the path of current flow. The open can be any break in the power side, load, or ground side
of a circuit. Short is a complete circuit in which the current usually bypasses some or all of the resistance
in the circuit and it involves the power side of the circuit.
4. What is Ohm's law? - ANSWER ✔✔-It requires 1 volt to push 1 ampere through 1 ohm of resistance.
This means that if the voltage is doubled, then the number of amperes of current flowing through a
circuit will also double if the resistance of the circuit remains the same.
5. What occurs to current flow (amperes) and wattage if the resistance of a circuit is increased because of
a corroded connection? - ANSWER ✔✔-The current flow (amperes) stays the same and the wattages
increases.
1. 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 - ANSWER ✔✔-a(n) (b) short-to-ground
2. If two insulated wires were to melt together where the copper conductors touched each other, the type
of failure would be called a(n) - ANSWER ✔✔-(a) short-to-voltage
3. If 12 volts are being applied to a resistance of 3 ohms, - ANSWER ✔✔-(c) 4 amperes will flow.
4. How many watts are consumed by a light bulb if 1.2 amperes are measured when 12 volts are applied?
- ANSWER ✔✔-(a) 14.4 watts
Created by Katelyn Whitman © 2025, All Rights Reserved.
