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Energy and Power MCQ Electrical Engineering

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About Energy and Power

Following are some of the multiple choice questions on the Energy and Power with answers that will help the students in developing their knowledge.

Energy and Power MCQ

1. Energy ___________________ drives our energy world.

creation
conversion
conservation
None of these

2. Which of the following is NOT an example of a non-renewable energy source?

Coal
Nuclear
Hydro
Oil

3. Stored energy in the form of position or condition.

potential energy
kinetic energy
momentum
mechanical energy

4. Energy in the form of motion.

mechanical energy
potential energy
kinetic energy
momentum

5. The ability to do work or cause change:

work
energy
momentum
power

6. What is the unit of energy that electrical companies use?

kJ
kW
kJ/hour
kW/hour

7. Is the amount of energy being transferred over a period of time.

Power
Energy
Seconds
Joules

8. Which situation is work not done?

lifting a 20 pound box off the floor
holding a 20 pound box above the floor
sliding a 20 pound box across the floor
sliding a 20 pound box up an inclined plane

9. What is the unit of measurement for power?

Joules
Watts
Voltage
Calories

10. Where is the kinetic energy of pendulum at its highest?

at the top of the swing
at the bottom of the swing
at 1/4 of the swing
at 3/4 of the swing

11. The SI Unit for Energy is

Joule
Newton
Calorie
Watt

12. What is the difference between calculating power and work?

Power takes into account the time it takes to complete a task
Work takes into account the time it takes to complete a task
Power is force/area
Work is force/area

13. A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

18 m
4 m
10 m
6 m

14. The first hydroelectric plant was set up at

Darjeeling
Assam
Karnataka
None of these

15. Petroleum occurs in this type of rocks

Sedimentary
Igneous
Metamorphic
None of these

16. Breeding and rearing of fish for food

Pissiculture
Horticulture
Agriculture
None of these

17. Petroleum is called

Black gold
Black stone
Black dot
All of above

18. Best quality coal

Lignite
Anthracite
Bituminous
Both A & B

19. Hydroelectric project on river Satluj

Rihand
Bhakra Nangal
Koyna
All of above

20. Wind mills are installed in aresa with

High wind velocity
Low WIND velocity
Moderate wind velocity
None of these

21. Large concave reflectors are used in

Solar power plants
Solar thermal appliances
Solar panels
All of above

22. Solar power generator are used for

Community lightening
Calculators
Toys
All of above

23. Energy of future is

Renewable sources of energy
Non-renewable sources of energy
Both
none of the above

24. As a candle burns, the chemical energy stored in the wax is transferred into

Heat and Light
Heat and Magnetism
Electricity and Light
Electricity and Magnetism

25. Which of the following activities involves work?I Pulling a coconut treeII Stretching a springIII Jumping on the spotIV Leaning against a wall

I and II
II and III
III and IV
I and IV

26. Which form of energy is being converted to electrical energy by the batteries in a flashlight?

Chemical
Nuclear
Solar
Sound

27. Which energy source is renewable?

Fuel oil
Natural Gas
WInd
Coal

28. Energy of motion is called

elastic potential energy
kinetic energy
gravitational potential energy
chemical energy

29. Which factor contributes to global warming?

increased use of solar-powered cars
increased burning of fossil fuels
better long-term weather forecasts
changing distance between Earth and Sun

30. The Law of Conservation of Energy states that energy cannot be created or destroyed, but energy can change

its total mass
its total volume
from one form to another
from one state of matter to another

31. Which form of energy is produced when a rubber band vibrates?

chemical
light
electrical
sound

32. The unit for power is

Calorie
Work
Watt
Power

33. All the following activities produce the same amount of work done EXCEPT

Lifting a box vertically through a height of 1 m with a force of 20N against the gravitational force.
Pushing a trolley over a distance of 2 m with a force of 10 N.
Pulling a drawer over a distance of 20 cm with a force of 1 N
Lifting up a stack of books weighing 20N to a vertical height of 100 cm.

34. As a rubber band is snapping back, it has what kind of energy?

Potential
Kinetic
None
Position

35. Which form of energy is almost always produced during energy transformations?

Heat
Electricity
Light
Sound

36. Energy is

Whether one feels like doing work
the ability to do work
calculated by dividing the amount of work by the amount of time to do the work
just another word for work

37. Which of the following activities involves work done?

An old man lying still on the floor
A boy running around a stadium
A girl holding a stack of books
A baby crying

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