Deck 40: Electrical Circuits and Ohms Law

Question 1

Which component in this electrical circuit is considered the "load"?

A)A
B)B
C)C
D)D

Answer 1

C

Question 2

Excessive corrosion on an electrical connector ________.

A)Can cause a fuse to blow
B)Can cause lights to be dim
C)Both A and B
D)Neither A nor B

Answer 2

Can cause lights to be dim

Question 3

A loose ground connection ________.

A)Causes reduced current flow
B)Causes less power to be available to the electrical components
C)Both A and B
D)Neither A nor B

Answer 3

Both A and B

Question 4

A sheet metal screw holding a metal body panel has pierced the insulation of a wire and is touching the copper wire. This would cause a ________.

A)Short to power
B)Short to ground
C)High resistance
D)None of these

Question 5

A circuit with excessive current flow ________.

A)May cause a fuse to blow
B)May create excess heat in conductors
C)Both A and B
D)Neither A nor B

Question 6

High resistance in a circuit can cause ________.

A)Clicking of relays or solenoids
B)Dim lights
C)Slow motor operation
D)Any of the above

Question 7

A circuit with a short to voltage may cause ________.

A)Improper operation of loads in the circuit
B)Other circuits to malfunction
C)Both A and B
D)Neither A nor B

Question 8

Corrosion on electrical terminals may cause ________.

A)Increased current flow in the circuit
B)Lights to be dimmer than normal
C)Both A and B
D)Neither A nor B

Question 9

An open electrical circuit has zero ohms resistance.

Question 10

An electrical circuit uses 12 volts and has a current flow of 2 amps. What is the wattage?

A)6 watts
B)12 watts
C)24 watts
D)None of these

Question 11

A complete circuit that is continuous from source through loads and back to ground has ________.

A)Congruency
B)Continuity
C)Both A and B
D)Neither A nor B

Question 12

The electrical path to ground may be completed by ________.

A)The vehicle frame
B)The metal body of the vehicle
C)Both A and B
D)Neither A nor B

Question 13

Electrical controls such as switches ________.

A)May be on either the source or ground side of the circuit
B)Control electrical flow in the circuit
C)Both A and B
D)Neither A nor B

Question 14

An open circuit ________.

A)May be caused by high resistance
B)May be caused by a blown fuse
C)Both A and B
D)Neither A nor B

Question 15

In an open circuit ________.

A)No voltage is present
B)No current will flow
C)Both A and B
D)Neither A nor B

Question 16

A shorted circuit ________.

A)Always causes the fuse to blow
B)Could include an open circuit
C)Both A and B
D)Neither A nor B

Question 17

In a circuit with a short to ground ________.

A)No current flows past the point of the short
B)Some or all of the electrical loads may no longer work
C)Both A and B
D)Neither A nor B

Question 18

High resistance in a circuit ________.

A)Reduces current flow through the circuit
B)May cause a fuse to blow
C)Both A and B
D)Neither A nor B

Question 19

In a circuit with high resistance ________.

A)No electrical device will function
B)Electrical loads may still operate but less efficiently
C)Both A and B
D)Neither A nor B

Question 20

It requires ________ volt(s) to push 1 ampere through 1 ohm of resistance.

A)12
B)2
C)1
D)None of these