Engineering Thermodynamics A closed system is one in which Mass does not cross boundaries of the system, though energy may do so Both energy and mass cross the boundaries of the system Mass crosses the boundary but not the energy Neither mass nor energy crosses the boundaries of the system Mass does not cross boundaries of the system, though energy may do so Both energy and mass cross the boundaries of the system Mass crosses the boundary but not the energy Neither mass nor energy crosses the boundaries of the system ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will Increase Remain unchanged Increase/decrease depending on application Decrease Increase Remain unchanged Increase/decrease depending on application Decrease ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The polytropic index (n) is given by log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) log (p1p2)/log (v1v2) log [(p1v1)/(p2v2)] log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) log (p1p2)/log (v1v2) log [(p1v1)/(p2v2)] ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of the Carnot cycle may be increased by 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 Increasing the highest temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The specific heat of air increases with increase in Both pressure and temperature Pressure Variation of its constituents Temperature Both pressure and temperature Pressure Variation of its constituents Temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure Entropy Volume Mass Enthalpy Entropy Volume Mass Enthalpy ANSWER DOWNLOAD EXAMIANS APP
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