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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

γ
∝
1

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Engineering Thermodynamics
According to kinetic theory of gases, the absolute zero temperature is attained when

Volume of the gas is zero
Pressure of the gas is zero
Kinetic energy of the molecules is zero
Specific heat of gas is zero

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Engineering Thermodynamics
For same compression ratio and for same heat added

Efficiency depends on other factors
Diesel cycle is more efficient than Otto cycle
Otto cycle is more efficient than Diesel cycle
Both Otto and Diesel cycles are equally efficient

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Engineering Thermodynamics
The throttling process is __________ process.

Irreversible
Reversible or irreversible
Reversible
None of these

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Engineering Thermodynamics
In a free expansion process

Heat transfer is zero
Both (A) and (B) above
Work done is zero but heat increases
Work done is zero

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Engineering Thermodynamics
General gas equation is

PV=KiRT
PV=nRT
PV=mRT
PV = C

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MORE MCQ ON Engineering Thermodynamics

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