Engineering Thermodynamics The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 + (1/ rγ - 1) 1 - (1/ rγ - 1) 1 + rγ - 1 1 - rγ - 1 1 + (1/ rγ - 1) 1 - (1/ rγ - 1) 1 + rγ - 1 1 - rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An open 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 Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant Internal energy Volume Pressure Temperature Internal energy Volume Pressure Temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is Possible Feasible Impossible Possible, but with lot of sophistications Possible Feasible Impossible Possible, but with lot of sophistications ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics For which of the following substances, the internal energy and enthalpy are the functions of temperature only Water Perfect gas Any gas Saturated steam Water Perfect gas Any gas Saturated steam ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Carnot cycle efficiency depends upon Working condition Properties of the medium/substance used Condition of engine Temperature range of operation Working condition Properties of the medium/substance used Condition of engine Temperature range of operation ANSWER DOWNLOAD EXAMIANS APP
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