Engineering Thermodynamics Which of the following is the correct statement? All the reversible and irreversible engines have the same efficiency. Irreversible engines have maximum efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible engines have the same efficiency. All the reversible and irreversible engines have the same efficiency. Irreversible engines have maximum efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible engines have the same efficiency. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat and mechanical energies are mutually convertible. This statement was established by Boyle None of these Joule Charles Boyle None of these Joule Charles ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Addition of heat at constant pressure to a gas results in Raising its pressure Raising its temperature Raising its temperature and doing external work Raising its volume Raising its pressure Raising its temperature Raising its temperature and doing external work Raising its volume 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 One kg of carbon requires 4/3 kg of oxygen and produces ________ kg of carbon monoxide gas. 44138 44046 44142 44015 44138 44046 44142 44015 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called Hyperbolic process Adiabatic process Polytropic process Isothermal process Hyperbolic process Adiabatic process Polytropic process Isothermal process ANSWER DOWNLOAD EXAMIANS APP
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