Engineering Thermodynamics According to First law of thermodynamics, Internal energy, enthalpy and entropy during a process remain constant Work-done by a system is equal to the heat transferred by the system Total energy of a system remains constant Total internal energy of a system during a process remains constant Internal energy, enthalpy and entropy during a process remain constant Work-done by a system is equal to the heat transferred by the system Total energy of a system remains constant Total internal energy of a system during a process remains constant 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 rγ - 1 1 - (1/r) γ - 1/ γ 1 - (1/r) γ/γ - 1 1 - rγ - 1 rγ - 1 1 - (1/r) γ - 1/ γ 1 - (1/r) γ/γ - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel, the process is known as __________ of fuel. Carbonization Atomization None of these Combustion Carbonization Atomization None of these Combustion ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Diesel cycle with decrease in cut-off First increases and then decreases Increases First decreases and then increases Decreases First increases and then decreases Increases First decreases and then increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following items is not a path function? Thermal conductivity Kinetic energy Work Heat Thermal conductivity Kinetic energy Work Heat ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of the Carnot cycle may be increased by Increasing the highest temperature Decreasing the highest temperature Keeping the lowest temperature constant Increasing the lowest temperature Increasing the highest temperature Decreasing the highest temperature Keeping the lowest temperature constant Increasing the lowest temperature ANSWER DOWNLOAD EXAMIANS APP
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