Lesson 2 Electrics Test

What is the component labeled with number 1 in the diagram?

• Wiring

• Fuse

• Switch

• Battery

Which number corresponds to the "Load device (consumer)" in the diagram?

• 2

• 3

• 4

• 5

What does the number 3 represent in the diagram?

• Battery

• Wiring

• Fuse

• Earth return wiring

Which component is indicated by number 6?

• Battery

• Wiring

• Switch

• Earth return wiring

What type of circuit is shown in the diagram?

• Parallel Circuit

• Series Circuit

• Complex Circuit

• Open Circuit

What type of circuit is shown in the diagram where the light bulbs are labeled with "4V"?

• Parallel Circuit

• Series Circuit

• Complex Circuit

• Simple Circuit

How do you calculate the total resistance of a series circuit?

• Total Resistance = R1 x R2 x R3

• Total Resistance = R1 + R2 + R3

• Total Resistance = (R1 + R2 + R3) / 3

• Total Resistance = 1/(1/R1 + 1/R2 + 1/R3)

If each of the three bulbs in a series circuit has a resistance of 2 ohms, what is the total resistance?

• 2 ohms

• 4 ohms

• 6 ohms

• 8 ohms

What happens to the current at all points of a series circuit?

• It varies depending on the resistance

• It stays the same

• It doubles

• It is zero

What is the consequence of one component failing in a series circuit?

• Only the component that failed will stop working

• The current in the circuit will double

• All components in the circuit will fail

• The total resistance of the circuit will decrease