Question 1

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 amperage 
A)  equal to source voltage 
B)  equivalent to zero voltage 
C)  equal to the resistance in the circuit 
D)  equivalent to the amperage

Question 2

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

Accepted Answer

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

Question 3

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 coil 
A)  Solenoid 
B)  Headlight 
C)  Relay 
D)  Ignition coil

Question 4

What is capacitance measured in?

Accepted Answer

A)  volts 
B)  amps 
C)  coulombs 
D)  farads 
A)  volts 
B)  amps 
C)  coulombs 
D)  farads

Question 5

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

Accepted Answer

A)  Conventional theory 
B)  Electron theory 
C)  Gilbert theory 
D)  Faraday theory 
A)  Conventional theory 
B)  Electron theory 
C)  Gilbert theory 
D)  Faraday theory

Question 6

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 above 
A)  wheel speed sensors 
B)  transmission tailshaft speed sensors 
C)  engine speed sensors 
D)  all of the above

Question 7

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 volts 
A)  3 volts 
B)  .33 volts 
C)  6 volts 
D)  12 volts

Question 8

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 anything 
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 anything

Question 9

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

Accepted Answer

A)  diode 
B)  generator 
C)  transformer 
D)  capacitor 
A)  diode 
B)  generator 
C)  transformer 
D)  capacitor

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 volts 
A)  1.5 volts 
B)  3 volts 
C)  9 volts 
D)  12 volts

Question 11

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 above 
A)  Series 
B)  Series-parallel 
C)  Parallel 
D)  None of the above

Question 12

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

Question 13

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 flow 
A)  Decreases 
B)  Increases 
C)  Remains the same 
D)  No current flow

Question 14

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 force 
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 force

Question 15

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 above 
A)  Charge differential 
B)  Electromotive force 
C)  Potential difference 
D)  All of the above

Question 16

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 potential 
A)  From positive to negative 
B)  From negative to positive 
C)  From low potential to high potential

Question 17

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 above 
A)  Series 
B)  Series-parallel 
C)  Parallel 
D)  None of the above

Question 18

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 wire 
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 wire

Question 19

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 volts 
A)  1.5 volts 
B)  3 volts 
C)  9 volts 
D)  12 volts

Question 20

Which of these wire gauge sizes has the largest diameter?

Accepted Answer

A)  18 gauge 
B)  16 gauge 
C)  12 gauge 
D)  8 gauge 
A)  18 gauge 
B)  16 gauge 
C)  12 gauge 
D)  8 gauge

Exam 5: Fundamentals of Electricity

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

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

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

What is capacitance measured in?

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

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

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

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

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

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?

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

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?

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

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

Which of these terms mean the same thing as Voltage?

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

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

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

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?

Which of these wire gauge sizes has the largest diameter?

Introduction to Servicing Heavy-Duty Trucks

Shop Safety and Operations

Tools and Fasteners

Preventive Maintenance Program

Fundamentals of Electronics and Computers

Batteries

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Cranking Systems

Chassis Electrical Circuits

Diagnosis and Repair of Electronic Circuits

Multiplexing

Hydraulics

Clutches

Standard Transmissions

Standard Transmission Servicing

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Automatic Transmission Maintenance

Electronically Automated Standard Transmissions

Electronically Controlled Automatic Transmissions Ecats

Driveshaft Assemblies

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Heavy-Duty Truck Axle Service and Repair

Steering and Alignment

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Heavy-Duty Heating, ventilation, and Air Conditioning Systems

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