Mechanical Engineering Questions And Answers :: Thermodynamics: part4



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

    Health is the greatest gift, contentment is the greatest wealth -Buddha
Too many of us are not living our dreams because we are living our fears.- Les Brown