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Engineering Thermodynamics

Engineering Thermodynamics
The compression ratio for petrol engines is

15 to 30
5 to 8
3 to 6
10 to 20

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Engineering Thermodynamics
For a perfect gas, according to Boyle’s law (where P = Absolute pressure, V = Volume and T = Absolute temperature)

V/T = constant, if p is kept constant
T/P = constant, if v is kept constant
P v = constant, if T is kept constant
P/T = constant, if v is kept constant

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Engineering Thermodynamics
Which of the following gas has the highest calorific value?

Blast furnace gas
Producer gas
Mond gas
Coal gas

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Engineering Thermodynamics
The specific heat of air increases with increase in

Pressure
Variation of its constituents
Both pressure and temperature
Temperature

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Engineering Thermodynamics
When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is

Bituminous coal
Coke
Wood charcoal
Briquetted coal

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Engineering Thermodynamics
Which of the following processes is irreversible process?

All of these
Throttling
Isothermal
Adiabatic

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MORE MCQ ON Engineering Thermodynamics

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