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Engineering Thermodynamics

Engineering Thermodynamics
The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to

1
∝
γ

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Engineering Thermodynamics
The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

External energy
Entropy
Enthalpy
Internal energy

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Engineering Thermodynamics
The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as

Atkinson cycle
Rankine cycle
Diesel cycle
Dual combustion cycle

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Engineering Thermodynamics
For which of the following substances, the gas laws can be used with minimum error

Wet steam
Saturated steam
Superheated steam
Dry steam

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Engineering Thermodynamics
Charles' law states that all perfect gases change in volume by __________ of its original volume at 0°C for every 1°C change in temperature, when pressure remains constant.

1/173th
1/27th
1/273th
1/93th

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Engineering Thermodynamics
A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is

Not possible
May be possible with lot of sophistications
Cost will be very high
Theoretically possible

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MORE MCQ ON Engineering Thermodynamics

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