Engineering Thermodynamics The value of n = 1 in the polytropic process indicates it to be Reversible process Isothermal process Irreversible process Adiabatic process Reversible process Isothermal process Irreversible process Adiabatic process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When the gas is cooled at constant pressure, Its volume increases but temperature decreases Its temperature increases but volume decreases Both temperature and volume decreases Both temperature and volume increases Its volume increases but temperature decreases Its temperature increases but volume decreases Both temperature and volume decreases Both temperature and volume increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Boyle's law i.e. pV = constant is applicable to gases under Steady change of pressures Only small range of pressures High range of pressures All ranges of pressures Steady change of pressures Only small range of pressures High range of pressures All ranges of pressures ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement? All the reversible engines have the same efficiency. All the reversible and irreversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. Irreversible engines have maximum efficiency. All the reversible engines have the same efficiency. All the reversible and irreversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. Irreversible engines have maximum efficiency. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly Internal energy Entropy Enthalpy Temperature Internal energy Entropy Enthalpy Temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is 108°C 327°C 654°C 54°C 108°C 327°C 654°C 54°C ANSWER DOWNLOAD EXAMIANS APP
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