Mechanical Engineering - Thermodynamics

6.
The principal constituents of a fuel are
carbon and hydrogen
oxygen and hydrogen
sulphur and oxygen
sulphur and hydrogen
Answer: Option
Explanation:
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7.
In an extensive property of a thermodynamic system
extensive heat is transferred
extensive work is done
extensive energy is utilised
none of these
Answer: Option
Explanation:
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8.
When a gas is heated at constant pressure
its temperature will increase
its volume will increase
both temperature and volume will increase
neither temperature not volume will increase
Answer: Option
Explanation:
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9.
By decreasing the highest temperature in the Carnot cycle, its efficiency is increased.
True
False
Answer: Option
Explanation:
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10.
Workdone during adiabatic expansion is given by (where p1 v1, T1 = Pressure, volume and temperature for the initial condition of gas, p2, v2, T2 = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats)
all of these
Answer: Option
Explanation:
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