Mechanical Engineering - Thermodynamics

41. 

One m3 of methane (CH4) requires 2m3 of oxygen and produces 1m3 of carbon dioxide and 2m3 of water or steam.

A. Correct
B. Incorrect

Answer: Option A

Explanation:

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42. 

Coke oven gas is obtained by burning coke in an oven.

A. Agree
B. Disagree

Answer: Option B

Explanation:

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43. 

A perpetual motion machine of the first kind is __________ according to first law of thermodynamics.

A. possible
B. impossible

Answer: Option B

Explanation:

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44. 

One kg of carbon requires 8/3 kg of oxygen for its complete combustion and produces 11/3 kg of carbon dioxide gas.

A. Agree
B. Disagree

Answer: Option A

Explanation:

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45. 

A process, in which the gas is heated or expanded in such a way that product of its pressure and volume remains constant, is called isothermal process.

A. Yes
B. No

Answer: Option B

Explanation:

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