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ME Set-3
Engineering Thermodynamic
111

Engineering Thermodynamics MCQ with Answers

111) In a Carnot cycle, heat is transferred at

constant pressure

constant volume

constant temperature

constant enthalpy

Answer is:

constant temperature

Engineering Thermodynamics MCQ with Answers

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Related Engineering Thermodynamics MCQ with Answers

112) A diathermic wall is one which

prevents thermal interaction

permits thermal interaction

encourages thermal interaction

discourages thermal interaction

Answer is:

permits thermal interaction

113) An adiabatic wall is one which

prevents thermal interaction

permits thermal interaction

encourages thermal interaction

discourages thermal interaction

Answer is:

prevents thermal interaction

114) The door of a running refrigerator inside a room was left open. Which of the following statements is correct?

The room will be cooled to the temperature inside the refrigerator.

The room will be cooled very slightly.

The room will be gradually warmed up.

The temperature of the air in room will remain unaffected.

Answer is:

The room will be gradually warmed up.

115) Compressed air coming out from a punctured football

becomes hotter

becomes cooler1

remains at the same temperature

may become hotter or cooler depend-ing upon the humidity of the surround¬ing air

Answer is:

becomes cooler1

Engineering Thermodynamics MCQ with Answers

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