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

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

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Engineering Thermodynamics
Which of the following statement is correct according to Clausis statement of second law of thermodynamics?

It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle.
It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature.
It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.
None of these

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Engineering Thermodynamics
According to Avogadro’s law

All of these
The sum of partial pressure of the mixture of two gases is sum of the two
The product of the gas constant and the molecular mass of an ideal gas is constant
Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules

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