# Energy and Power MCQ Electrical Engineering

50 Questions 30 Mins

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

• 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

• work
• energy
• momentum
• power

• kJ
• kW
• kJ/hour
• kW/hour

• 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

• 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

• 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

• 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

• Black gold
• Black stone
• Black dot
• All of above

• 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

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

• Chemical
• Nuclear
• Solar
• Sound

• 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

• chemical
• light
• electrical
• sound

• 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.

• Potential
• Kinetic
• None
• Position

• 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