
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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