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Mechanical Engineering Objective Questions { Thermodynamics }



344. The work given out during expansion process in a closed system will increase when the value of n (the index of compression)
A.Increases
B.Decreases
C.Remains same
D.First increases and then decreases
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345. The work required for compression in a closed system increases when the value of n (the index of compression)
A.Increases
B.Decreases
C.Remains same
D.First increases and then decreases
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346. Which is false statement about Carnot cycle?
A.All the thermal engines are based on Carnot cycle
B.It is represented as a standard of perfection
C.It provides concept of maximizing work output between two temperature limits
D.The degree of perfection of other engines can be compared with Carnot cycle
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347. Carnot cycle has maximum efficiency for
A.Reversible engine
B.Irreversible engine
C.New engine
D.Petrol engine
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348. Measurement of temperature is based on
A.Thermodynamic properties
B.Zeroth law of thermodynamics
C.First law of thermodynamics
D.Second law of thermodynamics
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349. Carnot cycle efficiency depends upon
A.Properties of the medium/substance used
B.Condition of engine
C.Working condition
D.Temperature range of operation
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350. Carnot cycle efficiency is maximum when
A.Initial temperature is 0°K
B.Final temperature is 0°K
C.Difference between initial and final temperature is 0°K
D.Final temperature is 0°C
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