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Engineering
Mechanical
ME Set-3
Engineering Thermodynamic
67

Engineering Thermodynamics MCQ with Answers

67) One watt is equal to

1 Nm/s

1 N/mt

1 Nm/hr

1 kNm/hr

Answer is:

1 Nm/s

Engineering Thermodynamics MCQ with Answers

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Related Engineering Thermodynamics MCQ with Answers

68) Work done is zero for the following process

constant volume

free expansion

throttling

all Of the above

Answer is:

all Of the above

Explanation:

Work done is zero for the following process
* constant volume
* free expansion
* throttling

69) For which of the following substances, the gas laws can be used with minimum error

dry steam

wet steam

saturated steam

superheated steam

Answer is:

superheated steam

70) In a non-flow reversible process for which p = (- 3V+ 15) x 105N/m2,V changes from 1 m to 2 m3. The work done will be about

100 xlOO5 joules

lxlO5 joules

10 xlO5 joules

10 xlO5 kilo joules

Answer is:

10 xlO5 joules

71) The value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is

29.27 kgfm/mol°K

8314kgfm/mol°K

848kgfm/mol°K

427kgfm/mol°K

Answer is:

848kgfm/mol°K

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