Thermodynamics - Mechanical Engineering Questions and Answers

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An adiabatic process is one in which

no heat enters or leaves the gas

the temperature of the gas changes

the change in internal energy is equal to the mechanical workdone

all of the above

Water gas is obtained by passing air and a large amount of steam over waste coal at about 650°C.

Correct

Incorrect

Which of the following represents Otto cycle on temperature - entropy (T - s) diagram?

When the gas is heated at constant volume, the heat supplied increases the internal energy of the gas.

True

False

Which of the following is the lightest and most volatile liquid fuel?

Gasoline

Kerosene

Fuel oil

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