AUT 242-Chapter 2 Exam Questions and
Answers 100% Solved | Graded A+
1. What is included in a complete electrical circuit? - ✔✔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?
- ✔✔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? -
✔✔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? - ✔✔It requires 1 volt to push 1 ampere through 1
ohm of resistance. This means that if the voltage is doubled, then the
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, 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? - ✔✔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 - ✔✔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) - ✔✔(a) short-
to-voltage
3. If 12 volts are being applied to a resistance of 3 ohms, - ✔✔(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? - ✔✔(a) 14.4 watts
5. How many watts are consumed by a starter motor if it draws 150
amperes at 10 volts? - ✔✔(c) 1,500 watts
6. High resistance in an electrical circuit can cause - ✔✔(d) Dim lights, slow
motor operation and clicking of relays or solenoids.
2
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
Answers 100% Solved | Graded A+
1. What is included in a complete electrical circuit? - ✔✔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?
- ✔✔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? -
✔✔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? - ✔✔It requires 1 volt to push 1 ampere through 1
ohm of resistance. This means that if the voltage is doubled, then the
1
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, 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? - ✔✔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 - ✔✔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) - ✔✔(a) short-
to-voltage
3. If 12 volts are being applied to a resistance of 3 ohms, - ✔✔(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? - ✔✔(a) 14.4 watts
5. How many watts are consumed by a starter motor if it draws 150
amperes at 10 volts? - ✔✔(c) 1,500 watts
6. High resistance in an electrical circuit can cause - ✔✔(d) Dim lights, slow
motor operation and clicking of relays or solenoids.
2
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
