Engineering :: Heat Engines
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11. |
Thermodynamic processes are those |
A. |
Where a difference is observed in any macroscopic property of the system between different times or state |
B. |
Where a difference is observed in any microscopic property of the system between different times or state |
C. |
Which occurs in the direction of an intensive property or driving force contained within the system |
D. |
Which require an agency outside the system to force the process |
E. |
None of the above |
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Answer: Option A
Explanation:
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12. |
The vapour pressure is related to the enthalpy of vaporization in |
A. |
Clausius Clapeyron equation |
B. |
Henry's law |
C. |
Raoult's law |
D. |
Maxwell's equation |
E. |
Dalton's law |
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Answer: Option A
Explanation:
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13. |
In thermodynamics, forced processes are those |
A. |
Where a difference is observed in any microscopic property of the system between different times of states |
B. |
Where a difference is observed in any microscopic property of the system between different times or states |
C. |
Which occur in the direction of an intensive property or driving force contained within the system |
D. |
Which require an agency outside the system to force the process |
E. |
None of the above |
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Answer: Option D
Explanation:
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14. |
Thermodynamic equilibrium is completely defined by the specifications of the |
A. |
Internal energy |
B. |
Enthalpy |
C. |
Generalized displacements |
D. |
All above together |
E. |
None of the above |
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Answer: Option D
Explanation:
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15. |
Solubility of a gas in a liquid at small concentration is represented in |
A. |
Henry's law |
B. |
Clausius Clapeyron equation |
C. |
Raoult's law |
D. |
Dalton's law |
E. |
None of the above |
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Answer: Option A
Explanation:
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16. |
A barN is |
A. |
A unit of area |
B. |
A unit of length |
C. |
A unit of time |
D. |
A unit of mass |
E. |
None of the above |
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Answer: Option A
Explanation:
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17. |
For superheated steam in a nozzle the critical pressure ratio is |
Answer: Option C
Explanation:
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18. |
A passout turbine generally operates on low pressure in the range |
A. |
10 - 20 kg/cm2 |
B. |
20 - 50 kg/cm2 |
C. |
50 - 100 kg/cm2 |
D. |
100 - 150 kg/cm2 |
E. |
150 - 300 kg/cm2 |
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Answer: Option A
Explanation:
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19. |
A back pressure generally operates on pressures in the range |
A. |
15 - 40 kg/cm2 |
B. |
50 - 100 kg/cm2 |
C. |
100 - 150 kg/cm2 |
D. |
150 - 200 kg/cm2 |
E. |
200 - 350 kg/cm2 |
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Answer: Option A
Explanation:
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20. |
Rankine cycle efficiency for fixed steam temperature of any volume upto critical temperature will be maximum for steam pressure of |
A. |
Critical pressure |
B. |
100 kg/cm2 |
C. |
200 kg/cm2 |
D. |
203.5 kg/cm2 |
E. |
250 kg/cm2 |
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Answer: Option A
Explanation:
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