Question 1

Which of the following devices works on an opposite principle to an electric motor?

Accepted Answer

A)   diode
B)   generator
C)   transformer
D)   capacitorE) None of the above
F) All of the above

Question 2

All of these descriptions describing the behavior of magnetic lines of flux are true EXCEPT for:

Accepted Answer

A)   Flux lines flow in one direction
B)   Flux density is greatest at the poles of a magnet
C)   Flux lines facing the same direction repel
D)   Flux density determines the magnetic forceE) A) and C)
F) A) and D)

Question 3

Which of the following electromagnets would produce the greatest magnetomotive force?

Accepted Answer

A)   A coil of wire with 1,000 turns and 10 amperes of current
B)   10,000 ampere-turns wrapped around an iron core
C)   100 turns of wire flowing 50 amps of current
D)   1 amp of current through 5,000 turns of wireE) C) and D)
F) None of the above

Question 4

Technician A says that after a balloon is rubbed on a wool sweater,it should stick to a wall.Technician B says that if two balloons are rubbed on a wool sweater,they should stick to each other? Who is correct?

Accepted Answer

A)   Technician A only
B)   Technician B only
C)   Both A and B
D)   Neither A nor BE) All of the above
F) A) and B)

Question 5

If an additional current path to ground is added to a series circuit,what type of circuit has been created?

Accepted Answer

A)   Series
B)   Series-parallel
C)   Parallel
D)   None of the aboveE) All of the above
F) A) and B)

Question 6

INSERT FIGURE 5-31 FROM TEXTBOOK IMMEDIATELY ABOVE THIS QUESTION.Referencing the above figure,calculate the voltage drop across the 2 ohm resistor.Which of the following is correct?

Accepted Answer

A)   1.5 volts
B)   3 volts
C)   9 volts
D)   12 voltsE) None of the above
F) B) and C)

Question 7

If an additional current path is added to a parallel circuit what must happen to total circuit resistance?

Accepted Answer

A)   Decreases
B)   Increases
C)   Remains the same
D)   No current flowE) A) and B)
F) A) and C)

Question 8

In which of the following circuits would current flow be the same at any point in the circuit when it is energized?

Accepted Answer

A)   Series
B)   Series-parallel
C)   Parallel
D)   None of the aboveE) B) and D)
F) A) and C)

Question 9

Which of these wire gauge sizes has the largest diameter?

Accepted Answer

A)   18 gauge
B)   16 gauge
C)   12 gauge
D)   8 gaugeE) B) and C)
F) A) and C)

Question 10

INSERT FIGURE 5-31 FROM TEXTBOOK IMMEDIATELY ABOVE THIS QUESTION.Referencing the above figure,calculate the voltage drop across the 6 ohm resistor.Which of the following is correct?

Accepted Answer

A)   1.5 volts
B)   3 volts
C)   9 volts
D)   12 voltsE) A) and C)
F) None of the above

Question 11

The conventional theory of electrical current flow states that current flows:

Accepted Answer

A)   From positive to negative
B)   From negative to positive
C)   From low potential to high potentialD) A) and B)
E) A) and C)

Question 12

The sum of all the voltage drops in an electrical circuit should be:

Accepted Answer

A)   equal to source voltage
B)   equivalent to zero voltage
C)   equal to the resistance in the circuit
D)   equivalent to the amperageE) B) and C)
F) All of the above

Question 13

Which of the following components uses a step-up transformer?

Accepted Answer

A)   Ignition coil
B)   Relay
C)   Ignition switch
D)   All of the aboveE) All of the above
F) C) and D)

Question 14

Calculate the electrical pressure required to flow 6 amps through a 2 ohm resistance

Accepted Answer

A)   3 volts
B)   .33 volts
C)   6 volts
D)   12 voltsE) A) and D)
F) A) and C)

Question 15

Vehicle wiring schematics use which theory of current flow almost exclusively?

Accepted Answer

A)   Conventional theory
B)   Electron theory
C)   Gilbert theory
D)   Faraday theoryE) A) and B)
F) B) and C)

Question 16

As the electrons of an atom orbit it nucleus,what prevents them from colliding?

Accepted Answer

A)   They are moving at the speed of light
B)   They have like charges,so they repel each other
C)   They never leave their orbits
D)   They are too small to hit anythingE) C) and D)
F) B) and D)

Question 17

What is capacitance measured in?

Accepted Answer

A)   volts
B)   amps
C)   coulombs
D)   faradsE) A) and B)
F) B) and C)

Question 18

Which of these terms mean the same thing as Voltage?

Accepted Answer

A)   Charge differential
B)   Electromotive force
C)   Potential difference
D)   All of the aboveE) None of the above
F) A) and C)

Question 19

A commonly used sensor that induces an AC voltage by having a rotating reluctor cut through a permanent magnetic field is used for:

Accepted Answer

A)   wheel speed sensors
B)   transmission tailshaft speed sensors
C)   engine speed sensors
D)   all of the aboveE) All of the above
F) C) and D)

Question 20

Which of the following devices does NOT rely upon the principles of electromagnetism to function?

Accepted Answer

A)   Solenoid
B)   Headlight
C)   Relay
D)   Ignition coilE) A) and C)
F) None of the above

Exam 5: Fundamentals of Electricity

If an additional current path is added to a parallel circuit what must happen to total circuit resistance?

Correct AnswerverifiedShow Answer

In which of the following circuits would current flow be the same at any point in the circuit when it is energized?

Correct AnswerverifiedShow Answer

The conventional theory of electrical current flow states that current flows:

Correct AnswerverifiedShow Answer

Which of the following devices works on an opposite principle to an electric motor?

Correct AnswerverifiedShow Answer

Vehicle wiring schematics use which theory of current flow almost exclusively?

Correct AnswerverifiedShow Answer

As the electrons of an atom orbit it nucleus,what prevents them from colliding?

Correct AnswerverifiedShow Answer

Which of the following components uses a step-up transformer?

Correct AnswerverifiedShow Answer

Which of the following electromagnets would produce the greatest magnetomotive force?

Correct AnswerverifiedShow Answer

All of these descriptions describing the behavior of magnetic lines of flux are true EXCEPT for:

Correct AnswerverifiedShow Answer

INSERT FIGURE 5-31 FROM TEXTBOOK IMMEDIATELY ABOVE THIS QUESTION.Referencing the above figure,calculate the voltage drop across the 6 ohm resistor.Which of the following is correct?

Correct AnswerverifiedShow Answer

Calculate the electrical pressure required to flow 6 amps through a 2 ohm resistance

Correct AnswerverifiedShow Answer

Which of these wire gauge sizes has the largest diameter?

Correct AnswerverifiedShow Answer

What is capacitance measured in?

Correct AnswerverifiedShow Answer

If an additional current path to ground is added to a series circuit,what type of circuit has been created?

Correct AnswerverifiedShow Answer

The sum of all the voltage drops in an electrical circuit should be:

Correct AnswerverifiedShow Answer

Technician A says that after a balloon is rubbed on a wool sweater,it should stick to a wall.Technician B says that if two balloons are rubbed on a wool sweater,they should stick to each other? Who is correct?

Correct AnswerverifiedShow Answer

A commonly used sensor that induces an AC voltage by having a rotating reluctor cut through a permanent magnetic field is used for:

Correct AnswerverifiedShow Answer

Which of the following devices does NOT rely upon the principles of electromagnetism to function?

Correct AnswerverifiedShow Answer

INSERT FIGURE 5-31 FROM TEXTBOOK IMMEDIATELY ABOVE THIS QUESTION.Referencing the above figure,calculate the voltage drop across the 2 ohm resistor.Which of the following is correct?

Correct AnswerverifiedShow Answer

Which of these terms mean the same thing as Voltage?

Correct AnswerverifiedShow Answer

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