Deck 44: Automotive Wiring and Wire Repair

Question 1

Solder that has been properly applied will have a ________ appearance.

A)Spotted
B)Shiny
C)Dull brown
D)White

Answer 1

Shiny

Question 2

Metric wire size is measured in units of ________.

A)Meters
B)Cubic millimeters
C)Cubic centimeters
D)Square millimeters

Answer 2

Square millimeters

Question 3

In automotive wiring systems, a terminal is made of ________.

A)Solder
B)Metal
C)Plastic
D)Nylon

Answer 3

Metal

Question 4

A PTC circuit protector prevents excessive current flow in a circuit by ________.

A)Changing to a very high resistance
B)Burning open
C)Grounding the current
D)Opening a set of contacts

Question 5

A metric wire size of 2.0 mm² is equivalent to ________ AWG size.

A)10 ga.
B)20 ga.
C)2 ga.
D)14 ga.

Question 6

Which type of fuse can handle up to 80 amps?

A)Maxi
B)ATO
C)Mini
D)None of these

Question 7

A 20 amp fuse is normally what color?

A)Blue
B)Yellow
C)Green
D)Red

Question 8

What is TRUE about the plastic conduit covering the wiring?

A)The color identifies the voltage level of the circuits being protected.
B)It protects the wiring.
C)The color stripe is used to identify the temperature rating of the conduit.
D)All of the above

Question 9

A 10 amp fuse is normally what color?

A)Blue
B)Yellow
C)Red
D)Green

Question 10

Which of these symbols represents a fuse in an electrical diagram?

A)
B)
C)Both of these
D)None of these

Question 11

Stranded copper wire is used in most automotive electrical circuits because it ________.

A)Bends more easily than solid wire
B)Is an inexpensive but excellent conductor
C)Both A and B
D)Neither A nor B

Question 12

Which metal is the best conductor of electricity?

A)Gold
B)Copper
C)Brass
D)Silver

Question 13

Wire A has a diameter of 0.032 inches. Wire B has a diameter of 0.102 inches and an AWG rating of 10. Which of these is MOST likely to be the AWG rating of Wire A?

A)14 ga.
B)20 ga.
C)5 ga.
D)12 ga.

Question 14

Which of these is the recommended gauge wire for automotive speakers?

A)0 ga.
B)00 ga.
C)20 ga.
D)10 ga.

Question 15

Thick wires have a ________ AWG rating than thin wires.

A)Lower
B)Higher

Question 16

A 200 amp circuit that is 25 feet long should use wire of which AWG rating?

A)14 ga.
B)16 ga.
C)2 ga.
D)18 ga.

Question 17

Which of these wires is MOST likely used for starter motor high current circuits?

A)14 ga.
B)0 ga.
C)18 ga.
D)20 ga.

Question 18

Most automotive circuits, except for some ignition components, use ________ wire.

A)Primary
B)Alternative
C)Secondary
D)None of these

Question 19

The skin effect involves ________ current flowing around the outside of a circuit.

A)Equal
B)DC
C)AC
D)None of these

Question 20

A braided wire running from the negative battery terminal to the body of a vehicle is known as a ________.

A)Facilitating circuit
B)Ground strap
C)Redundant source
D)None of these

Question 21

Most braided ground straps are ________.

A)Insulated
B)Uninsulated
C)Made of high resistance wire
D)None of these

Question 22

The braiding of wire effectively ________ the creation of AC current around the conductors.

A)Eliminates
B)Enhances
C)Multiplies
D)None of these

Question 23

A twisted pair circuit has wire with at least ________ turns per foot.

A)12
B)9
C)5
D)24

Question 24

Why is thick wire used for the battery-starter circuit?

A)To carry high voltage
B)To carry high amperage current
C)Both of these
D)Neither of these

Question 25

Six volt systems require ________ wires than 12 volt systems.

A)Smaller
B)Larger
C)Equal
D)None of these

Question 26

Technician A says that copper jumper cables are better than aluminum jumper cables. Technician B says that aluminum jumper cables are better than copper jumper cables. Which technician is correct?

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