Electrical Concepts Quiz Auto Tech

Technician A says electrons and protons form the nucleus of an atom. Technician B says electrons have a negative charge. Who is right?

• A only.

• B only.

• Both A and B.

• Neither A nor B.

Technician A says electricity is the movement of free atoms from one place to another. Technician B says electricity is the movement of free elements from one place to another. Who is right?

• A only.

• B only.

• Both A and B.

• Neither A nor B.

Technician A says silver is a good electrical conductor. Technician B says iron is a good electrical conductor. Who is right?

• A only.

• B only.

• Both A and B.

• Neither A nor B.

An atomic force that can attract or repel ferrous substances is known as:

• magnetism.

• electricity.

• current.

• voltage.

Technician A says an insulator is a substance that resists the flow of electricity. Technician B says the atoms in an insulator are very stable and resist electron movement. Who is right?

• A only.

• B only.

• Both A and B.

• Neither A nor B.

Technician A says a load is a basic component of an electric circuit. Technician B says a power supply is a basic component of an electric circuit. Who is right?

• A only.

• B only.

• Both A and B.

• Neither A nor B.

The electrical pressure that causes current is known as:

• voltage.

• amps.

• resistance.

• magnetism.

Technician A says that as voltage increases and resistance remains constant, current increases. Technician B says that as voltage decreases and resistance remains constant, the number of free electrons flowing through a circuit decreases. Who is right?

• A only.

• B only.

• Both A and B.

• Neither A nor B.

Technician A says the electron flow theory states that electrons flow through a circuit from positive to negative. Technician B says the conventional current theory states that electrons flow through a circuit from negative to positive. Who is right?

• A only.

• B only.

• Both A and B.

• Neither A nor B.

Technician A says dc circuits are not normally used in automotive circuits. Technician B says certain automotive computer sensors use ac. Who is right?

• A only.

• B only.

• Both A and B.

• Neither A nor B.