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Engineering Thermodynamics

Engineering Thermodynamics
Kerosene is distilled at

220° to 345°C
470° to 550°C
345° to 470°C
65° to 220°C

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Engineering Thermodynamics
A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is

Cost will be very high
Theoretically possible
Not possible
May be possible with lot of sophistications

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Engineering Thermodynamics
All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called

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

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Engineering Thermodynamics
According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.

Remains constant
None of these
Increases
Decreases

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Engineering Thermodynamics
If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant

Temperature
Volume
Enthalpy
Pressure

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Engineering Thermodynamics
The efficiency of Diesel cycle approaches to Otto cycle efficiency when

Cut-off is zero
Cut-off is constant
Cut-off is increased
Cut-off is decreased

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