Quarter 3

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Question 1 of 10 0% read

1. The material used for making fuse wire should have:

A High melting point

B Low melting point

C High resistance

D Low resistance

2. When cells are connected in series, the total EMF is:

A Average of EMFs

B Difference of EMFs

C Sum of EMFs

D Product of EMFs

3. Which device is used to measure electric current?

A Voltmeter

B Galvanometer

C Ammeter

D Ohmmeter

4. Which of the following reduces the risk of electric shock?

A Wet floor

B Insulated wires

C Broken plug

D Overloading

5. A fuse is used in a circuit to:

A Increase current

B Measure voltage

C Prevent overheating

D Store charge

6. One kilowatt-hour is equal to:

A 1000 joules

B 3600 joules

C 3.6 × 10^6 joules

D 3.6 × 10^3 joules

7. Which quantity remains the same in all components of a series circuit?

A Voltage

B Current

C Resistance

D Power

8. The purpose of earthing is to:

A Increase voltage

B Reduce current

C Prevent electric shock

D Save energy

9. Which color is usually used for the live wire?

A Green

B Blue

C Brown

D Yellow

10. Which device is considered the brain of digital systems?

A Relay

B Logic gate

C Resistor

D Transformer

Quarter 3

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