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ME Set-1
Thermodynamics
11

Thermodynamics MCQ with Answers

11) Which of the following has the minimum atomic mass?

Oxygen

Sulphur

Nitrogen

Carbon

Answer is:

Carbon

Explanation:

Atomic mass of different elements.
Oxygen = 15.99u
Sulphur = 32.07u
Nitrogen = 14.007u
Carbon =12.0107 u

Which of the following has the minimum atomic mass?

Thermodynamics MCQ with Answers

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Related Thermodynamics MCQ with Answers

12) Workdone in a free expansion process is

zero

minimum

maximum

positive

Answer is:

zero

13) The pressure exerted by an ideal gas is __________ of the kinetic energy of all the molecules contained in a unit volume of gas.

one-half

one-third

two-third

three-fourth

Answer is:

two-third

14) The compression ratio for petrol engines is

3 to 6

5 to 8

15 to 20

20 to 30

Answer is:

5 to 8

15) The efficiency of Diesel cycle approaches to Otto cycle efficiency when

cut-off is increased

cut-off is decreased

cut-off is zero

cut-off is constant

Answer is:

cut-off is zero

Thermodynamics MCQ with Answers

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