Engineering Thermodynamics If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called Hyperbolic expansion Parabolic expansion Adiabatic expansion Free expansion Hyperbolic expansion Parabolic expansion Adiabatic expansion Free expansion ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio) 1 - rγ - 1 1 - (1/r) γ - 1/ γ rγ - 1 1 - (1/r) γ/γ - 1 1 - rγ - 1 1 - (1/r) γ - 1/ γ rγ - 1 1 - (1/r) γ/γ - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when Process is isentropic Flow is uniform and steady Process is isentropic and specific heat does not change with temperature Process is isothermal Process is isentropic Flow is uniform and steady Process is isentropic and specific heat does not change with temperature Process is isothermal ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following process can be made reversible with the help of a regenerator? Constant pressure process All of these Constant volume process Constant pvn process Constant pressure process All of these Constant volume process Constant pvn process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle Heat rejection is lower Expansion and compression are isentropic Combustion is at constant volume Maximum temperature is higher Heat rejection is lower Expansion and compression are isentropic Combustion is at constant volume Maximum temperature is higher ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to First law of thermodynamics, Work-done by a system is equal to the heat transferred by the system Internal energy, enthalpy and entropy during a process remain constant Total internal energy of a system during a process remains constant Total energy of a system remains constant Work-done by a system is equal to the heat transferred by the system Internal energy, enthalpy and entropy during a process remain constant Total internal energy of a system during a process remains constant Total energy of a system remains constant ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS