Engineering Thermodynamics Which of the following cycles has maximum efficiency? Rankine Brayton Carnot Stirling Rankine Brayton Carnot Stirling ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The oxygen atom is ________ times heavier than the hydrogen atom. 32 8 16 2 32 8 16 2 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 Polytropic process Hyperbolic process Adiabatic process Isothermal process Polytropic process Hyperbolic process Adiabatic process Isothermal process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is All of these The working parts of the engine must be friction free All the processes, taking place in the cycle of operation, must be extremely slow The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these The working parts of the engine must be friction free All the processes, taking place in the cycle of operation, must be extremely slow The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is -140 kJ -80 kJ -40 kJ +60 kJ -140 kJ -80 kJ -40 kJ +60 kJ ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following process can be made reversible with the help of a regenerator? Constant pvn process Constant volume process All of these Constant pressure process Constant pvn process Constant volume process All of these Constant pressure process ANSWER DOWNLOAD EXAMIANS APP
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