Engineering Thermodynamics Which law states that the internal energy of a gas is a function of temperature? There is no such law Charles' law Joule's law Boyle's law There is no such law Charles' law Joule's law Boyle's law ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following processes are thermodynamically reversible? Free expansion Constant volume and constant pressure Isothermal and adiabatic Throttling Free expansion Constant volume and constant pressure Isothermal and adiabatic Throttling ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The gas turbine cycle with regenerator improves Work ratio Thermal efficiency None of these Avoid pollution Work ratio Thermal efficiency None of these Avoid pollution ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement? Irreversible engines have maximum efficiency. All the reversible and irreversible engines have the same efficiency. All the reversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. Irreversible engines have maximum efficiency. All the reversible and irreversible engines have the same efficiency. All the reversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 - rγ - 1 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An isolated system is one in which 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 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 ANSWER DOWNLOAD EXAMIANS APP
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