Mechanical Engineering - Thermodynamics

6.
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
Answer: Option
Explanation:
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7.
Water gas is obtained by passing air and a large amount of steam over waste coal at about 650°C.
Correct
Incorrect
Answer: Option
Explanation:
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8.
Which of the following represents Otto cycle on temperature - entropy (T - s) diagram?
Answer: Option
Explanation:
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9.
When the gas is heated at constant volume, the heat supplied increases the internal energy of the gas.
True
False
Answer: Option
Explanation:
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10.
Which of the following is the lightest and most volatile liquid fuel?
Gasoline
Kerosene
Fuel oil
Answer: Option
Explanation:
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