Engineering Thermodynamics The efficiency of the Carnot cycle may be increased by Increasing the lowest temperature Keeping the lowest temperature constant Decreasing the highest temperature Increasing the highest temperature Increasing the lowest temperature Keeping the lowest temperature constant Decreasing the highest temperature Increasing the highest temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An adiabatic wall is one which Encourages thermal interaction Prevents thermal interaction Discourages thermal interaction Permits thermal interaction Encourages thermal interaction Prevents thermal interaction Discourages thermal interaction Permits thermal interaction ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Work-done during adiabatic expansion is given by (where p1 v1, T1 = Pressure, volume and temperature for the initial condition of gas, p2, v2, T2 = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats) All of these [m R T1/(γ - 1)][1 - (p2, v2 /p1 v1)] (p1 v1 - p2, v2)/(γ - 1) [m R (T1 - T2)] /(γ - 1) All of these [m R T1/(γ - 1)][1 - (p2, v2 /p1 v1)] (p1 v1 - p2, v2)/(γ - 1) [m R (T1 - T2)] /(γ - 1) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature. Increases Remains constant Decreases None of these Increases Remains constant Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One molecule of oxygen is __________ times heavier than the hydrogen atom. 32 16 12 14 32 16 12 14 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A cycle consisting of ___ and two isothermal processes is known as Stirling cycle. One constant pressure, one constant volume Two constant pressure Two constant volume Two isentropic One constant pressure, one constant volume Two constant pressure Two constant volume Two isentropic ANSWER DOWNLOAD EXAMIANS APP
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