Engineering Thermodynamics MCQ Questions & Answers

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Each section contains 100 MCQs on Engineering Thermodynamics .

Which of the following gas has a minimum molecular mass?

A) Nitrogen B) Hydrogen C) Methane D) Oxygen

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following gas has a minimum molecular mass?

A) Oxygen B) Nitrogen C) Hydrogen D) Methane

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The atomic mass of oxygen is

A) 14 B) 16 C) 18 D) 121

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

For the same compression ratio, the efficiency of dual combustion cycle is

A) Greater than Diesel cycle and less than Otto cycle B) Greater than Diesel cycle C) Less than Diesel cycle D) Less than Diesel cycle and greater than Otto cycle

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The heating of gas at constant volume is governed by

A) Boyle's law B) Charle's law C) Gay-Lussac law D) Avogadro's law

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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

A) The room will be cooled to the temperature inside the refrigerator B) The room will be cooled very slightly C) The room will be gradually warmed up D) The temperature of the air in room will remain unaffected

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which of the following is the extensive property of a thermodynamic system?

A) Pressure B) Volume C) Temperature D) Density

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following is an intensive property of a thermodynamic system?

A) Mass B) Temperature C) Energy D) Volume

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

According to Avogadro's law, for a given pressure and temperature, each molecule of a gas

A) Occupies same volume B) Occupies volume proportional to its specific weight C) Occupies volume inversely proportional to its molecular weight D) Occupies volume inversely proportional to its specific weight

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The energy of molecular motion appears as

A) Heat B) Potential energy C) Surface tension D) Friction

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Engineering Thermodynamics MCQ Questions & Answers | Mechanical Engineering