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ME Set-3
Engineering Thermodynamic
103

Engineering Thermodynamics MCQ with Answers

103) Carnot cycle efficiency depends upon

properties of the medium/substance used

condition of engine

working condition

temperature range of operation

Answer is:

temperature range of operation

Engineering Thermodynamics MCQ with Answers

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Related Engineering Thermodynamics MCQ with Answers

104) Carnot cycle efficiency is maximum when

initial temperature is 0°K

final temperature is 0°K

difference between initial and final temperature is 0°K

final temperature is 0°C

Answer is:

final temperature is 0°K

105) An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be

650°K

600°K

625°K

700°K

Answer is:

650°K

106) If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly

temperature

enthalpy

internal energy

entropy

Answer is:

entropy

107) If a system after undergoing a series of processes, returns to the initial state then

process is thermodynamically in equilibrium

process is executed in closed system cycle

its entropy will change due to irreversibility

sum of heat and work transfer will be zero

Answer is:

sum of heat and work transfer will be zero

Engineering Thermodynamics MCQ with Answers

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