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Engineering Thermodynamics

Engineering Thermodynamics
The fuel mostly used in blast furnace for extracting pig iron from iron ores is

Soft coke
Hard coke
Pulverized coal
Bituminous coal

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Engineering Thermodynamics
The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

Clausis
Kelvin
Gay-Lussac
Joule

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Engineering Thermodynamics
The behavior of a perfect gas, undergoing any change in the variables which control physical properties, is governed by

Gay-Lussac law
Boyle's law
All of the listed here
Charles' law

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Engineering Thermodynamics
For reversible adiabatic process, change in entropy is

Zero
Negative
Maximum
Minimum

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Engineering Thermodynamics
The throttling process is __________ process.

Irreversible
None of these
Reversible
Reversible or irreversible

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Engineering Thermodynamics
The compression ratio for petrol engines is

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

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