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Engineering Thermodynamics

Engineering Thermodynamics
The ___ is obtained when carbonization of coal is carried out at 500° to 700° C.

Hard coal
Pulverized coal
Soft coal
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/ cp =R
cv = R/ γ-1
Both (B) and (C)

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Engineering Thermodynamics
In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

None of these
Polytropic
Isentropic
Isothermal

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Engineering Thermodynamics
The heating of a gas at constant pressure is governed by

Charles' law
Avogadro's law
Boyle's law
Gay-Lussac law

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Engineering Thermodynamics
The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

Less than one
Greater than one
None of these
Equal to one

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Engineering Thermodynamics
A perpetual motion machine is

A thermodynamic machine
A non-thermodynamic machine
A hypothetical machine
A hypothetical machine whose operation would violate the laws of thermodynamics

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