Engineering Thermodynamics MCQ Questions & Answers

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Each section contains 100 MCQs on Engineering Thermodynamics .

The condition of perfect vacuum, i.e., absolute zero pressure can be attained at

A) A temperature of -273.16°C B) A temperature of 0°C C) A temperature of 273°K D) A negative pressure and 0°C temperature

Discuss

Answer & Solution

Answer: Option A

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

Work done in a free expansion process is

A) Zero B) Maximum C) Minimum D) Positive

Discuss

Answer & Solution

Answer: Option A

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

Work-done in a free expansion process is

A) Zero B) Minimum C) Maximum D) Positive

Discuss

Answer & Solution

Answer: Option A

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

The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is

A) 0.086 B) 1.086 C) 2.086 D) 4.086

Discuss

Answer & Solution

Answer: Option B

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

According to Gay Lussac’s law for a perfect gas, the absolute pressure of given mass varies directly as

A) Temperature B) Absolute temperature, if volume is kept constant C) Volume, if temperature is kept constant D) None of these

Discuss

Answer & Solution

Answer: Option B

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

The heat and mechanical energies are mutually convertible. This statement was established by

A) Boyle B) Charles C) Joule D) None of these

Discuss

Answer & Solution

Answer: Option C

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

Mond gas is obtained by

A) Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast B) Carbonisation of bituminous coal C) Passing steam over incandescent coke D) Passing air and a large amount of steam over waste coal at about 650°C

Discuss

Answer & Solution

Answer: Option D

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

Producer gas is obtained by

A) Carbonization of bituminous coal B) Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast C) Passing steam over incandescent coke D) Passing air and a large amount of steam over waste coal at about 650°C

Discuss

Answer & Solution

Answer: Option B

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

In open cycle gas turbine plants

A) Direct combustion systems is used B) A condenser is used C) The indirect heat exchanger and cooler is avoided D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

The atomic mass of sulphur is

A) 12 B) 14 C) 16 D) 32

Discuss

Answer & Solution

Answer: Option D

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

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Engineering Thermodynamics MCQ Questions & Answers | Mechanical Engineering