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Engineering Thermodynamics

Engineering Thermodynamics
The natural petroleum may be separated into

Lubricating oil
Fuel oil
Kerosene
Petrol

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Engineering Thermodynamics
The value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is

29.27 kgfm/mol °K
427 kgfm/mol °K
848 kgfm/mol °K
8314 kgfm/mol °K

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Engineering Thermodynamics
Which of the following gas has a minimum molecular mass?

Oxygen
Hydrogen
Methane
Nitrogen

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Engineering Thermodynamics
When coal is first dried and then crushed to a fine powder by pulverizing machine, the resulting fuel is called

Wood charcoal
Briquetted coal
None of these
Bituminous coal

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Engineering Thermodynamics
Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant)

cp - cv = R
cv = R/ γ-1
cv/ cp =R
Both (B) and (C)

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Engineering Thermodynamics
When gas is heated at constant pressure, the heat supplied is utilized in

None of these
Increasing the internal energy of gas and also for doing some external work
Increasing the internal energy of gas
Doing some external work

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