Renewable Energy Resources MCQ Unit - 4

Renewable Energy Resources MCQ Unit - 4

 

1. Thermocouple is a ______________

(A) Tertiary transducer
(B) Secondary transducer
(C) Primary transducer
(D) None of the above

Correct option is C

2. Operation of thermocouple is based on _______________

(A) Peltier effect
(B) Seebeck effect
(C) Thomson effect
(D) All of the mentioned

Correct option is D

3. ________ describes current flow between two junctions formed by two different metals.

(A) Peltier effect
(B) Thomson effect
(C) Seebeck effect
(D) None of the mentioned

Correct option is A

4. In closed circuit, if the current I flows through a resistance R, the heat generated by the resistance is equal to I²R. It is known as __________

(A) Peltier effect
(B) Thomson effect
(C) Seebeck effect
(D) Joule effect

Correct option is D

5. Amount of heat liberated or absorbed when 1A current passes is called ____________

(A) Peltier coefficient
(B) Thomson coefficient
(C) Seebeck coefficient
(D) Joule coefficient

Correct option is A

6. Total seebeck effect can be found as _____________

(A) Total Peltier effect
(B) Total Thomson effect
(C) Partly peltier and thomson effect
(D) None of the mentioned

Correct option is C

7. Peltier effect is reverse of seebeck effect.

(A) True
(B) False

Correct option is A

8. Which semiconductor is(are) used in thermoelectric power generation?

(A) Bismuth telluride (Bi₂Te₃)
(B) Lead telluride (PbTe)
(C) Cesium sulphide (CeS)
(D) All the Above

Correct option is D

9. The process of emission of electron from the hot metal surfaces is called __________.
(A) Plastic emission
(B) Thermionic emission
(C) Static emission
(D) Current emission

Correct option is B

10. The particle emitted from hot cathode surface
(A) Neutrons
(B) Electrons
(C) Protons
(D) None of the above

Correct option is B

11. At room temperature, the electron cannot escape metal surface due to
(A) attractive forces of nucleus
(B) repulsive forces of electrons
(C) repulsive forces of nucleus
(D) pulling force of protons

Correct option is A

12. What causes wind?
(A) Rotation of the Earth
(B) The Sun heating the atmosphere
(C) Variation in the Earth’s surface
(D) All of the above

Correct option is D

13. What is the earliest recorded use for windmills?
(A) Generating electricity
(B) Pumping water
(C) Jousting
(D) Grinding grain

Correct option is B

14. How many blades does a modern wind turbine have?
(A) 3
(B) 4
(C) 2
(D) There is no standard number of blades.

Correct option is A

15. Which of these is NOT a part of a modern wind turbine?
(A) Gearbox
(B) Yaw drive
(C) Compressor
(D) Nacelle

Correct option is C

16. Which nation leads the world in installed wind energy capacity?
(A) China
(B) Germany
(C) Netherlands
(D) US

Correct option is A

17. What does Heating and cooling of the atmosphere generates?
(A) Conduction currents
(B) Convection currents
(C) Radiation currents
(D) Thermo line circulation

Correct option is B

18. What is the main source for the formation of wind?
(A) Uneven land
(B) Vegetation
(C) Seasons
(D) Sun

Correct option is D

19. Which country created wind mills?
(A) US
(B) Egypt
(C) Mongolia
(D) Iran

Correct option is D

20. Statement: During the day, the air above the land heats up more quickly than the air over water
(A) True
(B) False

Correct option is A

21. What type of energy is wind energy?
(A) Renewable energy
(B) Non-renewable energy
(C) Conventional energy
(D) Commercial energy

Correct option is A

22. What are used to turn wind energy into electrical energy?
(A) Turbine
(B) Generators
(C) Blades
(D) Yaw motor

Correct option is A

23. Diameter of wind turbine blades …
(A) 320 feet
(B) 220 feet
(C) 80 feet
(D) 500 feet

Correct option is B

24. Suitable speed to operate wind turbines ……..
(A) 5 – 25 m/s
(B) 10 – 35 m/s
(C) 20 – 45 m/s
(D) 30 – 55 m/s

Correct option is A

25. Classification of winds is(are)
(A) Global wind
(B) Local wind
(C) Both (A) and (B)
(D) None of these

Correct option is C

26. Global Cold wind move from
(A) Equatorial to polar region
(B) Polar to equatorial region
(C) Equatorial to oceanic region
(D) Oceanic to Equatorial region

Correct option is B

27. ________ force is responsible for forcing the global winds towards western direction.
(A) Coriolis
(B) Centripetal
(C) Centrifugal
(D) Gravitational

Correct option is A

28. Uneven heating occurs on land surface and water bodies are due to _____
(A) Air Currents
(B) Solar radiation
(C) Lunar eclipse
(D) None of these

Correct option is B

29. Factor affecting the distribution of wind energy
(A) Mountain chains
(B) The hills, trees and buildings
(C) Frictional effect of the surface
(D) All of the above

Correct option is D

30. The wind intensity can be described by
(A) Reynolds number
(B) Mach number
(C) Beaufort number
(D) Froude number

Correct option is C