Engineering Thermodynamics MCQ with Answers

66) The basis for measuring thermodynamic property of temperature is given by

Answer is:

zeroth law of thermodynamics

Explanation:

Zeroth law of thermodynamics : Zeroth law of thermodynamics states that, when two bodies are in thermal equilibrium with a third body. They are also in thermal equilibrium with each other. The basis for measuring thermodynamic property of temperature is given by zeroth law of thermodynamics.

67) One watt is equal to

Answer is:

1 Nm/s

68) Work done is zero for the following process

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

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

Answer is:

66) The basis for measuring thermodynamic property of temperature is given by

zeroth law of thermodynamics

67) One watt is equal to

1 Nm/s

68) Work done is zero for the following process

all Of the above

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

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

10 xlO5 joules