Engineering :: Energy Conversion
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1. |
Solar cells are made of |
A. |
Silica |
B. |
Steel |
C. |
Sulphur |
D. |
Antimony |
E. |
Phosphorous |
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Answer: Option A
Explanation:
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2. |
The disadvantage of using solar evergy for power production is |
A. |
Requirements of large area for harnessing solar energy |
B. |
Energy available during day time only |
C. |
Energy not available during cloudy weather |
D. |
Initial cost is high |
E. |
All of the above |
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Answer: Option E
Explanation:
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3. |
The device used to generate power utilising energy of wind is called |
A. |
Air motor |
B. |
Aerogenerator |
C. |
Windmill |
D. |
Wind generagor |
E. |
None of the above |
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Answer: Option C
Explanation:
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4. |
Which of the following power plant will give least running cost of the production of electrical power? |
A. |
Steam power plant |
B. |
Diesel engine power plant |
C. |
Gas turbine power plant |
D. |
Nuclear power plant |
E. |
All will have nearly same running cost |
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Answer: Option D
Explanation:
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5. |
Which of the following power plant has the highest cost per kW installed? |
A. |
Steam power plant |
B. |
Diesel engine power plant |
C. |
Gas turbine power plant |
D. |
Hydro-electric power |
E. |
Nuclear power plant |
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Answer: Option E
Explanation:
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6. |
Watt second is the unit of |
A. |
Force |
B. |
Momentum |
C. |
Power |
D. |
Energy |
E. |
None of the above |
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Answer: Option D
Explanation:
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7. |
1 kilowatt hour is the same as |
A. |
1 joule |
B. |
1000 joules |
C. |
1000 watt-sec |
D. |
3600 watt-hours |
E. |
3600,000 watt-sec |
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Answer: Option E
Explanation:
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8. |
One BTU is the amount of energy required to raise the temperature of |
A. |
One gram of water through 1?C |
B. |
One gram of water through 1?F |
C. |
One kilogram of water through ?F |
D. |
One pound of water through 1?C |
E. |
One pound of water through 1?F |
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Answer: Option E
Explanation:
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9. |
One calorie is the same as |
A. |
1 dyne |
B. |
1 dyne-sec |
C. |
1 watt |
D. |
4.18 joules |
E. |
4.11 watts |
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Answer: Option D
Explanation:
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10. |
One British thermal unit (BTU) is nearly equal to |
A. |
243 joules |
B. |
252 joules |
C. |
504 joules |
D. |
1053 joules |
E. |
2106 joules |
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Answer: Option D
Explanation:
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