Engineering Thermodynamics According to First law of thermodynamics, Total energy of a system remains constant Internal energy, enthalpy and entropy during a process remain constant Total internal energy of a system during a process remains constant Work-done by a system is equal to the heat transferred by the system Total energy of a system remains constant Internal energy, enthalpy and entropy during a process remain constant Total internal energy of a system during a process remains constant Work-done by a system is equal to the heat transferred by the system ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Addition of heat at constant pressure to a gas results in Raising its pressure Raising its temperature and doing external work Raising its temperature Raising its volume Raising its pressure Raising its temperature and doing external work Raising its temperature Raising its volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following gas is mostly used in town for street and domestic lighting and heating? Mond gas Coal gas Coke oven gas Producer gas Mond gas Coal gas Coke oven gas Producer gas ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The value of gas constant (R) in S. I. units is 28.7 J/kgK 0.287 J/kgK 287 J/kgK 2.87 J/kgK 28.7 J/kgK 0.287 J/kgK 287 J/kgK 2.87 J/kgK ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of a gas turbine is given by (Actual temperature drop)/(Isentropic temperature drop) (Net work output)/(Heat supplied) (Net work output)/(Work-done by the turbine) (Isentropic increase in temperature)/(Actual increase in temperature) (Actual temperature drop)/(Isentropic temperature drop) (Net work output)/(Heat supplied) (Net work output)/(Work-done by the turbine) (Isentropic increase in temperature)/(Actual increase in temperature) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics During throttling process Heat exchange does not take place There is no change of internal energy of steam All of these No work is done by expanding steam Heat exchange does not take place There is no change of internal energy of steam All of these No work is done by expanding steam ANSWER DOWNLOAD EXAMIANS APP
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