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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