| 1 |
In the thermodynamics process , the equation W = -delta U represents. |
- A. Isothermal expension
- B. Isothermal compression
- C. Adiabatic expansion
- D. Adiabatic compression
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| 2 |
No of spark plugs needed in the diesel engine are. |
|
| 3 |
Which remains constant in an adiabatic process. |
- A. Volume
- B. Pressure
- C. entropy
- D. temperature
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| 4 |
The number of spark plug needed in diesel engine is |
|
| 5 |
The energy processes, we use are |
- A. Efficient
- B. Not efficient
- C. Reversible
- D. None of these
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| 6 |
A constant temperature, if pressure of a given mass of gas is halved, then its volume becomes. |
- A. Halve
- B. Doubled
- C. Four time
- D. Constant
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| 7 |
A heat engine operates between the temperature 1000 K and 400 K, Its efficiency is. |
- A. 100%
- B. 70%
- C. 60%
- D. 50%
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| 8 |
A Carnot engine has an efficiency of 50% when its sink temperature is at 27 <sup>o</sup>C. The temperature of source. |
- A. 273<sup> o</sup>C
- B. 300 <sup>o</sup>C
- C. 327 <sup>o</sup>C
- D. 373 <sup>o</sup>C
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| 9 |
the work done in isochoric process is. |
- A. Constant
- B. Variable
- C. Zero
- D. Depend upon condition
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| 10 |
the change in internal energy is defined as |
- A. Q - W
- B. Q-T
- C. Q + P
- D. Q - P
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