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Exam 4: Wiring and Circuit Diagramswiring Repair and Reading Circuit Diagrams

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Question 21

Multiple Choice

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Technician A says a common point is represented by a black dot on the wiring diagram. Technician B says a connector can be a common point. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

E) A) and D)
F) C) and D)

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Question 22

Multiple Choice

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____ between the powertrain components and the vehicle's chassis are used to complete the return path to the battery.

A) Wiring harnesses
B) Grommets
C) Ground straps
D) Sheet metal parts

E) C) and D)
F) A) and D)

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Question 23

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What is a wiring diagram and what kind of information is provided?

Splicing aluminum wire is being discussed. Technician A says to solder the wires by coating them with petroleum jelly to control the temperature of the soldering iron. Technician B says to cover the splice with electrical tape. Who is correct?

Ground straps are used to:

The AWG standard assigns a(n) ____ number to the wire based on the diameter of the conductor not including the insulation.

____ wire means the conductor is made of several individual wires that are wrapped together.

Most wiring diagrams do not show an actual drawing of the components. Rather, they use ____to represent the components.

Ground straps can be tested by performing a voltage drop test.

What type of connection is used to pass large bundles of wires between the passenger compartment and the engine compartment?

Most of the wires in an automobile are covered with ____ insulation to identify wires and electrical circuits.

__________ __________ __________ are used to prevent damage to the wiring by maintaining proper wire routing and retention.

In a wire, an increase in temperature creates a similar __________ in resistance.

The conductor of an 18-gauge wire is larger than that of a 10-gauge wire.

Touching a printed circuit board with dirty hands will probably NOT harm the circuit.

Technician A says that wiring harness that run close to exhaust manifolds must be housed in PCV conduit. Technician B says printed circuits cannot be repaired. Who is correct?

How is wire size determined?

What does the symbol labeled "G200" in the figure below indicate?

How can a test lamp be used help locate a shorted or "overloaded" circuit?

Name five types of conductor materials.