Engineering Thermodynamics
Which of the following is the correct statement?

All engines are designed as reversible in order to obtain maximum efficiency.
All the reversible and irreversible engines have the same efficiency.
All the reversible engines have the same efficiency.
Irreversible engines have maximum efficiency.

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that

Carnot cycle can't work with saturated steam
A Rankine cycle receives heat at two places
Rankine cycle is hypothetical
Heat is supplied to water at temperature below the maximum temperature of the cycle

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
According to Avogadro’s law

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

ANSWER DOWNLOAD EXAMIANS APP