Question 1

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

Accepted Answer

electromotive force (EMF),electromotive force,EMF

Question 2

The term MOST-Likely used to describe a loss of voltage caused when current flows through a resistance is:
A) impedance
B) voltage drop
C) probe
D) short circuit

Accepted Answer

Voltage drop is the term used to describe the loss of voltage that occurs when current flows through a resistance. This is a fundamental concept in electrical engineering, indicating how much voltage is reduced across a component or conductor due to its resistance and the current flowing through it.

Question 3

All of the following statements are true EXCEPT:
A) voltage differential controls how strongly a load in a circuit is operated.
B) when voltage differential is lower than normal, a light will not be as bright or a heater defroster motor will not spin as fast.
C) if voltage drops as loads are added to a circuit, flow is increased in the circuit.
D) voltage differential is the difference between battery voltage at one end of a circuit and zero voltage on the ground side.

Accepted Answer

Voltage drop in a circuit does not increase flow; it actually indicates a reduction in the voltage available to the loads as they are added, which can lead to decreased performance of the devices in the circuit. The statement incorrectly suggests an increase in flow (current) due to voltage drop, which contradicts basic electrical principles.

Question 4

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

Accepted Answer

Protons and neutrons are indeed located in the nucleus at the center of an atom, while electrons orbit the nucleus in various energy levels.

Question 5

A(n) ____ is a material with no, or few, free electrons.
A) insulator
B) conductor
C) diode
D) volt

Accepted Answer

Insulators are materials that have few or no free electrons, which makes them poor conductors of electricity.

Question 6

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

Accepted Answer

The answer of A permanent magnet meter is called a(n)...

Question 7

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

Accepted Answer

Electricity in a vehicle is indeed used to power the starting system (starter motor), ignition system (spark plugs and ignition coil), lighting system (headlights, taillights, indicators), and various accessory systems (radio, power windows, navigation systems).

Question 8

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

Accepted Answer

The answer of ____________________ are used to make heat or...

Question 9

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 10

Which of the following statements is LEAST-Likely true?
A) Without insulation surrounding the conductor, electricity would take undesired paths.
B) Electricity never takes the path of least resistance to ground.
C) According to electron theory, electrons flow from an area with more negative charge to one with a more positive charge.
D) Resistance is an obstruction to electrical flow.

Accepted Answer

Electricity typically takes the path of least resistance to ground, making statement B the least likely to be true. The other statements accurately describe principles of electricity and electron theory.

Question 11

A ____ is a magnetically controlled switch.
A) diode
B) transistor
C) capacitor
D) relay

Accepted Answer

A relay is a magnetically controlled switch that uses an electromagnet to mechanically operate a switching mechanism.

Question 12

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

Accepted Answer

Magnetism is fundamental in the operation of both the charging system and the starter motor. In the charging system, it's used to generate electrical current through electromagnetic induction. In the starter motor, magnetism is used to create the rotational force needed to start the engine.

Question 13

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 14

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

Accepted Answer

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

Question 15

Which of the following is the LEAST-Likely technique used to arrange a circuit?
A) Relay-series
B) Series
C) Parallel
D) Series-parallel

Accepted Answer

Relay-series is not a standard technique for arranging circuits. The common methods for arranging circuits include series, parallel, and series-parallel configurations. Relay-series does not fit into the typical categorization of circuit arrangements, making it the least likely technique used.

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

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

Accepted Answer

A load in an electrical circuit is any component or device that consumes electrical energy and converts it into another form of energy, such as a light bulb converting electrical energy into light and heat, or a motor converting it into mechanical energy.

Question 18

Protons are composed of atoms, neutrons, and electrons.

Accepted Answer

Protons, along with neutrons, are the components of atomic nuclei, and they are themselves made up of smaller particles called quarks, not atoms, neutrons, and electrons.

Question 19

The component MOST-Likely to store electricity is the:
A) capacitor
B) relay
C) diode
D) transistor

Accepted Answer

Capacitors are designed to store and release electrical energy, making them the component most likely to store electricity among the options given.

Question 20

All of the following statements are true EXCEPT:
A) variable resistors, called rheostats or potentiometers, are also used to control the speed and intensity of electrical loads.
B) a rheostat varies current flow through the circuit as a movable wiper runs along a resistor.
C) a potentiometer varies the voltage in a circuit.
D) a variable resistor is commonly called a "volt," whether it is a potentiometer or a rheostat.

Accepted Answer

Variable resistors are not commonly called "volts." "Volt" is a unit of measurement for electrical potential difference, not a name for variable resistors like potentiometers or rheostats.

Quiz 25: Basic Electrical System Theory and Repairs

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

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

All of the following statements are true EXCEPT:

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

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

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

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

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

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

Which of the following statements is LEAST-Likely true?

A ____ is a magnetically controlled switch.

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?

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

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?

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

____________________ 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.

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

Protons are composed of atoms, neutrons, and electrons.

The component MOST-Likely to store electricity is the:

All of the following statements are true EXCEPT: