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Engineering Thermodynamics

Engineering Thermodynamics
The unit of mass in S.I. units is

Tonne
Quintal
Gram
Kilogram

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Engineering Thermodynamics
The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called

None of these
kilo-Joule
Specific heat at constant volume
Specific heat at constant pressure

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Engineering Thermodynamics
The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant)

mcv (T2 - T1)
mcp (T2 + T1)
mcp (T2 - T1)
mR (T2 - T1)

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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

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

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Engineering Thermodynamics
The compression ratio for Diesel engines is

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

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Engineering Thermodynamics
An isothermal process is governed by

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

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MORE MCQ ON Engineering Thermodynamics

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