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Engineering Thermodynamics

Engineering Thermodynamics
The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion)

v1/v2
v2/v1
(v1 + v2)/v2
(v1 + v2)/v1

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Engineering Thermodynamics
The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called

None of these
Kilo Joule
Specific heat at constant pressure
Specific heat at constant volume

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Engineering Thermodynamics
Measurement of temperature is based on

First law of thermodynamics
Thermodynamic properties
Zeroth law of thermodynamics
Second law of thermodynamics

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Engineering Thermodynamics
For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

Diesel cycle, Otto cycle, Dual cycle
Dual cycle, Diesel cycle, Otto cycle
Dual cycle, Otto cycle, Diesel cycle
Otto cycle, Diesel cycle, Dual cycle

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Engineering Thermodynamics
Universal gas constant is defined as equal to product of the molecular weight of the gas and

Specific heat at constant volume
Specific heat at constant pressure
Gas constant
Ratio of two specific heats

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Engineering Thermodynamics
The unit of energy is S. I. units is

Joule (J)
Watt (W)
Joule meter (Jm)
Joule/meter (J/m)

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