1. Solar energy is converted into electric energy through ( UPPSC PYQ 2022)
a) Photo voltaic cells
b) Leclanche cells
c) Voltaic Cells
d) Dry Cells
Answer. a) Photo voltaic cells;
.
2. Compressed Natural Gas ( CNG) is mainly composed of ( UPPSC PYQ 2022)
a) Butane
b) Propane
c) Ethane
d) Methane
Answer. d) Methane;
.
3. Natural Gas is mainly composed of ( UPPSC PYQ)
a) Butane
b) Propane
c) Ethane
d) Methane
Answer. d) Methane;
.
4. Which among the following compounds is the main constituent of natural gas? ( UPPSC PYQ)
a) Methane
b) Hexane
c) Benzene
d) Butane
Answer. a) Methane
5. Which one of the following is the main constituent of LPG? ( UPPSC PYQ 2021)
a) Hexane
b) Pentane
c) Butane
d) Methane
Answer. c) Butane is the main constituent of LPG ( Liquid Petroleum Gas). Propane and Butane are the main constituents of LPG ( Liquid Petroleum Gas).
.
6. The smell that we get when an LPG cylinder leaks is due to the
a) Methane
b) Butane
c) Propane
d) Ethyl mercaptan
Answer. d) Ethyl mercaptan makes LPG a strong odor of rotten cabbage.
7. A non-renewable source of energy is ( UPPSC PYQ 2021)
a) Solar energy
b) Petroleum
c) Wind energy
d) Biogas
Answer. b) Petroleum is a non-renewable source of energy.
.
8. The energy of the sun is produced by
a) Nuclear fusion
b) Oxidation
c) Gravitation
d) Nuclear fission
Answer. a) Nuclear fusion
.
9. "Solar Energy" is due to
a) Fusion reaction
b) Fission reaction
c) Chemical reaction
d) Combustion reaction
Answer. a) Fusion reaction
10. In wind power, which form of energy is converted into electrical energy?
a) Kinetic energy
b) Potential energy
c) Solar Energy
d) Radiant Energy
Answer. a) Kinetic energy
11. Match List I with List II and choose the correct answer from the code given below-
List I List II
( Energy Conversion) ( Device / Mechanism)
A. Heat to Electric 1. Car Breaking
B. Electric to Sound 2. Nuclear Reactor
C. Mass to heat 3. Loudspeaker
D. Chemical to heat and light 4. Solar Cell
5. Fuel Combustion
Codes:
A B C D
a) 1 2 3 4
b) 4 3 2 5
c) 2 1 3 5
d) 3 1 2 4
Answer. b) 4 3 2 5
12. Which one of the following is used as an antifreeze for automobile engines?
a) Ethanol
b) Ethylene glycol
c) Methanol
d) Propyl Alcohol
Answer. b) Ethylene glycol;
13. To avoid "Knocking" in the engine of a car, which one of the following is used as an anti-knocking agent?
a) Ethyl alcohol
b) Butane
c) Lead Tetraethyl
d) White Petrol
Answer. c) Lead Tetraethyl;
.
14. Which of the following is a natural fuel?
a) Coal gas
b) Tar
c) Coke
d) Petroleum
Answer. d) Petroleum;
.
15. Which of the following fossil fuels is the cleanest fuel?
a) Coal
b) Petrol
c) Natural Gas
d) Diesel
Answer. c) Natural Gas
16. Which of the following is fossil fuel?
a) Alcohol
b) Ether
c) Water Gas
d) Natural Gas
Answer. d) Natural Gas;
.
17. Tetraethyl Lead ( TEL) is added to petrol
a) To prevent it from freezing
b) To increase its flash point
c) To increase its anti-knocking rating
d) To increase its boiling point
Answer. c) To increase its anti-knocking rating;
.
18. Diesel used in heavy vehicles for
a) Extra mileage and save engine
b) Low expense and save the fuel
c) High power and economic saving
d) Being cheaper than low petrol
Answer. c) High power and economic saving
19. Consider the following statements:
Statement ( A): Space-Based Solar Power ( SBSP) should, it is known, be made a national target.
Reason ( R): The supply of SBSP is 99 % non-stop in a year and the availability of energy is in abundance.
Select the correct answer using the codes given below-
a) Both A and R are true, and R is the correct explanation of A
b) Both A and R are true, but R is not the correct explanation of A.
c) A is true, but R is false
d) A is false, but R is true
Answer. a) Both A and R are true, and R is the correct explanation of A.
.
20. "Dynamo" is a device, which converts-
a) Chemical energy into electrical energy
b) Electrical energy into mechanical energy
c) Mechanical energy into electrical energy
d) Electrical energy into chemical energy
Answer. c) Mechanical energy into electrical energy;
.
21. A device that converts electrical energy into mechanical energy is
a) Dynamo
b) Transformer
c) Electrical motor
d) Inductor
Answer. c) Electrical motor;
.
22. The stars get their energy-
1. By nuclear fusion
2. By Gravitational contraction
3. By Chemical reaction
4. By nuclear fission
Select your answer from the code given below-
Code:
a) 1 and 2
b) 1,2, and 3
c) 1 and 4
d) 2 and 4
Answer. a) 1 and 2
23. The reason for the source of renewable energy in stars is
a) Decay of radioactive materials
b) Excess of oxygen which helps in burning and generates energy
c) Change of hydrogen to helium
d) Conversion of helium to hydrogen
Answer. c) Change of hydrogen to helium;
.
24. What is the source of electrical energy in an artificial satellite?
a) Solar cells
b) Mini Nuclear reactor
c) Dynamo
d) Thermopile
Answer. a) Solar cells;
25. Photovoltaic cells are
a) Solar cell
b) Thermal cell
c) Sulfur cell
d) Molar cell
Answer. a) Solar cell;
.
26. Which one of the following can not be used as a nuclear fuel?
a) Uranium
b) Thorium
c) Calcium
d) Plutonium
Answer. c) Calcium;
.
27. Hydrocarbon Vision 2025 is related to
a) Petroleum Product Protection
b) Euro I and Euro II Vehicles
c) Green House Effect
d) None of the above
Answer. a) Petroleum Product Protection
28. Automatic Wristwatches get energy from
a) Manual binding
b) Battery
c) Liquid crystal
d) Different movements of our hand
Answer. d) Different movements of our hand;
.
29. The photovoltaic effect was first discovered by
a) Einstein
b) C V Raman
c) Newton
d) Edmund Becquerel
Answer. d) Edmund Becquerel;
.
30. Who discovered the law of photoelectric effect?
a) Einstein
b) C V Raman
c) Newton
d) Edmund Becquerel
Answer. a) Einstein;
.
31. " Soleckshaw" is a
a) Computer Program
b) Moon Buggy
c) Soft Sole of a footwear
d) Solar Rickshaw
Answer. d) Solar Rickshaw
32. The fuel used in a diesel engine
a) Vapour of diesel and air
b) Diesel only
c) Mixture of Diesel and Petrol
d) Mixture of Diesel, air, and Petrol
Answer. a) Vapour of diesel and air
33. Which one of the following gases, released from the biogas plant is used as fuel gas?
a) Butane
b) Propane
c) Methane
d) Ethane
Answer. c) Methane;
.
34. The main component of Gobar Gas is
a) Methane
b) Ethane
c) Propane
d) Chloride
Answer. a) Methane;
.
35. Which of the following is the main part of natural gas?
a) Ethane
b) Butane
c) carbon mono oxide
d) Methane
Answer. d) Methane
36. The main components of Liquid Petroleum Gas ( LPG) are
a) Methane, Ethane, Hexane
b) Methane, Pentane, and Hexane
c) Ethane, Propane, and Butane
d) Methane, carbon Monoxide, and Hydrogen
Answer. c) Ethane, Propane, and Butane
37. LPG is used as domestic fuel and mainly contains
a) Methane
b) Acetylene
c) Ethylene
d) Butane
Answer. d) Butane
38. CNG is
a) Compressed Natural Gas
b) Cyanogen Natural Gas
c) Condensed Nitrogen Gas
d) Controlled Natural Gas
Answer. a) Compressed Natural Gas
39. Gasohol is a mixture of
a) Of gasoline and methanol
b) Of gasoline and ethanol
c) Of Gasoline and Propanol
d) Of methanol and ethanol
Answer. b) Of gasoline and ethanol;
40. Consider the following statements
1. Coal, petroleum, and Natural gas are fossil fuels
2. Gasohol is a mixture of Benzene and Alcohol
3. Geothermal energy is an unconventional energy source
4. Dung gas mainly consists of methane
In these statements
a) only 1 and 2 are correct
b) Only 2 and 3 are correct
c) 1,2, and 3 are correct
d) 1, 3, and 4 are correct
Answer. d) 1, 3, and 4 are correct
41. Charcoal which is used in decoloring raw sugar is
a) Wood Charcoal
b) Sugar Charcoal
c) Animal Charcoal
d) Coconut Charcoal
Answer. c) Animal Charcoal;
.
42. Non-conventional energy sources are those energy sources, that are ( UPPSC 2023)
a) Produced from heat
b) Produced from electricity
c) Non-renewable
d) Renewable
Answer. d) Renewable
43.
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