Question 1

____________________ are used to make heat or to control the intensity of a load.

Accepted Answer

Resistors

Question 2

A permanent magnet meter is called a(n) ____________________.

Accepted Answer

analog meter

Question 3

A(n) ____ is a material with no, or few, free electrons.

Accepted Answer

Insulators are materials that offer high resistance to the flow of electric current because they have no free electrons or very few free electrons. This property makes them useful in preventing electric current from flowing where it is not desired or from leaking away from where it is needed. Examples of insulators include rubber, glass, and plastic.

Question 4

A(n) ____________________ is a pure element or compound that allows electricity to flow freely.

Accepted Answer

The answer of A(n) ____________________ is a pure element or...

Question 5

All of the following statements are true EXCEPT:

Accepted Answer

The statement "if voltage drops as loads are added to a circuit, flow is increased in the circuit" is false. In reality, as load is added to a circuit, voltage drops and flow decreases. Ohm's Law states that V = IR, so as resistance (load) increases, current (flow) decreases, and therefore voltage drops.

Question 6

Protons are composed of atoms, neutrons, and electrons.

Accepted Answer

Protons are particles found in the nucleus of an atom and are composed of only atoms and neutrons. Electrons are found outside the nucleus.

Question 7

The term MOST-Likely used to describe a loss of voltage caused when current flows through a resistance is:

Accepted Answer

Voltage drop is the term used to describe the loss of voltage that occurs when current flows through a resistance. Impedance refers to the total opposition to current flow in a circuit, not specifically the loss of voltage. A probe is a tool used for measuring electrical properties in a circuit. A short circuit occurs when current flows through a path of low resistance, causing a high current flow and potentially damaging the circuit.

Question 8

The force needed to push or pull an electron out of its orbit is called ____________________.

Accepted Answer

The answer of The force needed to push or pull...

Question 9

The lead-acid storage battery used in automobiles produces approximately 4.1 volts per cell.

Accepted Answer

A lead-acid storage battery used in automobiles typically produces approximately 2.1 volts per cell.

Question 10

The component MOST-Likely to store electricity is the:

Accepted Answer

Capacitors are specifically designed to store electrical charge. They are capable of storing energy in an electric field between two conducting plates. The other components listed, such as relays, diodes, and transistors, do not have the same capacity for storing electrical charge.

Question 11

Which of the following statements is LEAST-Likely true?

Accepted Answer

Electricity always takes the path of least resistance to ground. This is a basic principle in electrical engineering and is used to help prevent electrical hazards.

Question 12

Protons and neutrons are located in the nucleus (center) of the atom, while the electrons move about in orbits around the nucleus.

Accepted Answer

This is a basic fact about the structure of an atom. Protons and neutrons make up the nucleus, while electrons orbit around the nucleus.

Question 13

Which of the following is the LEAST-Likely technique used to arrange a circuit?

Accepted Answer

Relay-series is not a common technique for arranging a circuit. Series, parallel, and series-parallel are all commonly used arrangements.

Question 14

A load is any device that turns electrical energy into another form of energy, such as light, sound, heat, or mechanical energy.

Accepted Answer

This statement is true. A load consumes electrical energy and converts it into a different form of energy. Examples of loads are light bulbs, speakers, heaters, and motors.

Question 15

While having a discussion, Technician A says that the longer a conductor is, the more resistance it has and the smaller its diameter, the less resistance it has. Technician B says that the larger its diameter, the less resistance it has. Who is correct?

Accepted Answer

Technician B is correct. The resistance of a conductor increases with length and decreases with an increase in diameter. Technician A is incorrect about the diameter; a smaller diameter actually increases resistance.

Question 16

____________________ is the flow of electrons from one atom to another from an area that has excess negative charge to an area that is more positively charged.

Accepted Answer

The answer of ____________________ is the flow of electrons from...

Question 17

While having a discussion, Technician A says that magnetism is used to produce electrical current in the charging system. Technician B says that it is used to make the starter motor turn. Who is correct?

Accepted Answer

Both technicians are correct. Magnetism is used in the alternator to produce electrical current in the charging system, and it is also used in the starter motor to turn the engine over.

Question 18

A ____ is a magnetically controlled switch.

Accepted Answer

A relay is a magnetically controlled switch that is typically used in circuits to control higher voltage or current levels with a lower voltage or current signal. When a small current is applied to the relay coil, it creates a magnetic field that causes a contact to move and connect or disconnect another circuit.

Question 19

All of the following statements are true EXCEPT:

Accepted Answer

Variable resistors may be called rheostats or potentiometers, and while rheostats vary current flow by running a wiper along a resistor, potentiometers vary voltage. However, variable resistors are not commonly called "volts."

Question 20

In a vehicle, electricity powers the starting, ignition, lighting, and accessory systems.

Accepted Answer

In most vehicles, electricity is responsible for powering the starting, ignition, lighting, and accessory systems.

Quiz 25: Basic Electrical System Theory and Repairs

____________________ are used to make heat or to control the intensity of a load.

A permanent magnet meter is called a(n) ____________________.

A(n) ____ is a material with no, or few, free electrons.

A(n) ____________________ is a pure element or compound that allows electricity to flow freely.

All of the following statements are true EXCEPT:

Protons are composed of atoms, neutrons, and electrons.

The term MOST-Likely used to describe a loss of voltage caused when current flows through a resistance is:

The force needed to push or pull an electron out of its orbit is called ____________________.

The lead-acid storage battery used in automobiles produces approximately 4.1 volts per cell.

The component MOST-Likely to store electricity is the:

Which of the following statements is LEAST-Likely true?

Protons and neutrons are located in the nucleus (center) of the atom, while the electrons move about in orbits around the nucleus.

Which of the following is the LEAST-Likely technique used to arrange a circuit?

A load is any device that turns electrical energy into another form of energy, such as light, sound, heat, or mechanical energy.

While having a discussion, Technician A says that the longer a conductor is, the more resistance it has and the smaller its diameter, the less resistance it has. Technician B says that the larger its diameter, the less resistance it has. Who is correct?

____________________ is the flow of electrons from one atom to another from an area that has excess negative charge to an area that is more positively charged.

While having a discussion, Technician A says that magnetism is used to produce electrical current in the charging system. Technician B says that it is used to make the starter motor turn. Who is correct?

A ____ is a magnetically controlled switch.

All of the following statements are true EXCEPT:

In a vehicle, electricity powers the starting, ignition, lighting, and accessory systems.