Q1. Which of the following is not a common method of electric power generation?
a) Solar power generation
b) Hydroelectric power generation
c) Nuclear power generation
d) Geothermal power generation
Answer: d) Geothermal power generation
Q2. Which of the following is the most widely used renewable energy source for electricity generation?
a) Wind power
b) Solar power
c) Hydroelectric power
d) Biomass power
Answer: c) Hydroelectric power
Q3. Which of the following is the unit of electrical energy?
a) Volt (V)
b) Ampere (A)
c) Watt (W)
d) Kilowatt-hour (kWh)
Answer: d) Kilowatt-hour (kWh)
Q4. What is the function of a transformer in an electrical system?
a) To generate electrical power
b) To convert AC to DC
c) To change the voltage of an AC power supply
d) To store electrical energy
Answer: c) To change the voltage of an AC power supply
Q5. Which of the following is not a common application of electric motors?
a) Fans
b) Pumps
c) Refrigerators
d) Radios
Answer: d) Radios
Q6. Which of the following is a disadvantage of using fossil fuels for electricity generation?
a) Low maintenance cost
b) High initial cost
c) Environmental pollution
d) High efficiency
Answer: c) Environmental pollution
Q7. Which of the following is a type of renewable energy source that does not involve the use of a turbine?
a) Solar power
b) Geothermal power
c) Wind power
d) Biomass power
Answer: a) Solar power
Q8. Which of the following is not a component of a basic electrical circuit?
a) Battery
b) Switch
c) Fuse
d) Screwdriver
Answer: d) Screwdriver
Q9. Which of the following is a benefit of using LED lights over traditional incandescent bulbs?
a) Higher energy consumption
b) Lower energy consumption
c) Higher heat output
d) Lower cost
Answer: b) Lower energy consumption
Q10. Which of the following is not a common type of electric power plant?
a) Coal-fired power plant
b) Natural gas power plant
c) Hydroelectric power plant
d) Solar power plant
Answer: d) Solar power plant
Q11. What is the device used to measure electrical current?
a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Wattmeter
Answer: b) Ammeter
Q12. Which of the following is the unit of electrical power?
a) Volt (V)
b) Ampere (A)
c) Watt (W)
d) Ohm (Ω)
Answer: c) Watt (W)
Q13. Which of the following is a type of renewable energy source that uses the power of ocean tides and waves to generate electricity?
a) Wind power
b) Solar power
c) Hydroelectric power
d) Ocean power
Answer: d) Ocean power
Q14. What is the purpose of a circuit breaker?
a) To generate electrical power
b) To convert AC to DC
c) To change the voltage of an AC power supply
d) To protect electrical circuits from overloading and short circuits
Answer: d) To protect electrical circuits from overloading and short circuits
Q15. Which of the following is a type of electric power transmission system that uses high-voltage direct current (HVDC)?
a) AC transmission
b) DC transmission
c) Both AC and DC transmission
d) None of the above
Answer: b) DC transmission
Q16. Which of the following is a type of electric power generation that uses the temperature difference between two substances to generate electricity?
a) Geothermal power generation
b) Solar power generation
c) Biomass power generation
d) Thermoelectric power generation
Answer: d) Thermoelectric power generation
Q17. Which of the following is the most commonly used material for electric wiring?
a) Copper
b) Aluminum
c) Iron
d) Steel
Answer: a) Copper
Q18. Which of the following is a type of renewable energy source that uses the energy from the sun to heat water and generate steam for electricity production?
a) Wind power
b) Solar power
c) Hydroelectric power
d) Biomass power
Answer: b) Solar power
Q19. Which of the following is a type of electric power generation that uses the combustion of fossil fuels to generate electricity?
a) Coal-fired power generation
b) Natural gas power generation
c) Oil-fired power generation
d) All of the above
Answer: d) All of the above
Q20. Which of the following is a type of electric power storage device that uses chemical reactions to store and release electrical energy?
a) Capacitor
b) Superconductor
c) Battery
d) Transformer
Answer: c) Battery
