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25 Cards in this Set
- Front
- Back
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Voltage drop can exist on the power side as well as the ground side of an electrical circuit |
TRUE |
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Circuit protectors are usually found on the negative side of the circuit |
False |
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A short circuit will result when a hot wire is grounded before reaching the load |
True |
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A location code is a code that indicates component position on a wiring diagram |
True |
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LTB green is printed next to a wire on a wiring diagram. This is the color of the wire on the vehicle |
True |
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An inoperative horn is being tested. A Dvom placed across the relay load contact terminals indicate 12 volts when the horn button is pushed. A click is heard from the relay when the button is pushed. Technician A says the relay is bad... Technician B says the relay coil circuit is bad... who is correct |
Tech A |
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Technician A says when testing a grounded circuit, if a fuse blows as soon as it is installed, a short to ground is indicated. Technician B says the component will not turn off if the short to ground is on the ground side of the load component but before a grounding switch... who is correct |
Both |
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Technician A says a maximum current will flow through 0 ohms of resistance. Technician B says infiniti will not allow current to flow. Who is correct |
C both |
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Technician A says an open circuit has no breaks in the path and current will flow. Technician B says in a closed circuit the circuit path is broken |
Neither are correct |
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Technician A says a zener diode is an excellent component for the regulating voltage. Technician B says when a circuit is opened suddenly to a large load , such as a coi, installing a clamping diode provides bypass for the electrons. Who is correct |
Both are correct |
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How much resistance is an a 12 volt circuit that is drawing 4 amperes |
B 3ohms |
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Whenever the brake pedal is pressed the left rear and the right rear taillights and the left rear and the right rear brake light of a vehicle illuminate dimly.. technician A says the brake light may have a poor ground connection. Technician B says the brake light switch may have excessive resistance. Who is correct |
Technician A is correct |
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The horn of a vehicle equipped with a horn relay sounds weak and distorted. Which one of the following is the least likely cause of the problem |
Excessive voltage drop across the relay coil winding |
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The circuit breakers that protects a power window circuit opens whenever the window is lowered. Technician A says internal resistance of the motor is too high. Technician B says the window regulator may be sticking |
Technician B is correct |
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A writing diagram illustrates three wires that are joined together at "C-125". Technician A says the wires are connected together at connector C-215. Technician B says the three wires are apart of circuit 215. Who is correct. |
Both A and B |
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An operative radiator fan needs to be repaired. Technician A says a single circuit type wiring diagram would be the simplest diagram to use. Technician B says a component locator will probably be needed to repair this circuit. Who is correct? |
Both A and B |
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Technician A says wiring diagrams give specific circuit information and detail. Technician B says a wiring diagram will help you find the fault. Who is correct? |
Both A and B |
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What usually causes a fuse to blow? |
Too much amperage |
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How are fuses rated? |
By current capacity |
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Technician A says the effect of temperature on resistance is a factor in wire size selection. Technician B says wire must be large enough to carry the amount of current necessary for the circuit to operate correctly. Who is correct? |
Both A and B |
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Technician A says if a fuse burns out when a switch is turned on, a short circuit is present before the switch. Technician B says if a fuse burns out when a switch is turned on, a short circuit is present after the switch. Who is correct? |
B only |
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What does a dotted line between connectors indicate? |
The connectors are physically the same. |
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Technician A says crimping solder less connections is the best method of splicing wires. Technician B says crimping should not be used if connection is subjected to excessive movement. Who is correct? |
B only |
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Technician A says that wiring harness pass from the passenger compartment to the engine compartment through bulkhead connectors. Technician B says a wire harness is a group of wires that branches out to various electrical components. Who is correct? |
Both A and B |
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Ground straps are used to... |
Provide a return path to the battery between insulated components. And suppress electromagnetic induction. |
