Engineering Thermodynamics If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant Temperature Pressure Volume Enthalpy Temperature Pressure Volume Enthalpy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The main cause for the irreversibility is All of these Mechanical and fluid friction Heat transfer with a finite temperature difference Unrestricted expansion All of these Mechanical and fluid friction Heat transfer with a finite temperature difference Unrestricted expansion ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained in a unit volume of gas. One-third Two-third Three-forth One-half One-third Two-third Three-forth One-half ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement? All the reversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible and irreversible engines have the same efficiency. Irreversible engines have maximum efficiency. All the reversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible and irreversible engines have the same efficiency. Irreversible engines have maximum efficiency. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to 800 K 1000 K 1200 K 1400 K 800 K 1000 K 1200 K 1400 K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The absolute zero pressure will be At the temperature of - 273 K When molecular momentum of the system becomes zero At sea level At the center of the earth At the temperature of - 273 K When molecular momentum of the system becomes zero At sea level At the center of the earth ANSWER DOWNLOAD EXAMIANS APP
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