Mechanical Engineering : Thermodynamics QUESTIONS AND ANSWERS :: part4 : 11 to 15
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant |
| pressure |
| temperature |
| volume |
| internal energy |
| entropy. |
12.Isochoric process is one in which |
| free expansion takes place |
| very little mechanical work is done by the system |
| no mechanical work is done by the system |
| all parameters remain constant |
| mass and energy transfer do not take place. |
13.First law of thermodynamics furnishes the relationship between |
| heat and work |
| heat, work and properties of the system |
| various properties of the system |
| various thermodynamic processes |
| heat and internal energy. |
14.First law of thermodynamics |
| enables to determine change in internal energy of the system |
| does not help to predict whether the system will or not undergo a change |
| does not enable to determine change in entropy |
| provides relationship between heat, work and internal energy |
| all of the above. |
15.Minimum work in compressor is possible when the value of adiabatic index n is equal to |
| 0.75 |
| 1 |
| 1.27 |
| 1.35 |
| 2. |
More Thermodynamics QUESTIONS AND ANSWERS available in next pages
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