Mechanical Engineering Questions And Answers :: Thermodynamics: part4



Mechanical Engineering : Thermodynamics QUESTIONS AND ANSWERS :: part4 : 21 to 25

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

21.According to first law of thermodynamics

mass and energy are mutually convertible
Carnot engine is most efficient
heat and work are mutually convertible
mass and light are mutually convertible
heat flows from hot substance to cold substance.

22.Molecular volume of any perfect gas at 600 x 103 N/m2 and 27�C will be

4.17m3/kgmol
400 m3/kg mol
0.15 m3/kg mol
41.7 m3/kg mol
417m3/kgmol.

23.The specific heat of air increases with increase in

temperature
pressure
both pressure and temperature
variation of its constituents
air flow

24.Which of the following processes is irreversible process

isothermal
adiabatic
throttling
all of the above
none of the above.

More Thermodynamics QUESTIONS AND ANSWERS available in next pages

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