Engineering Thermodynamics The condition for the reversibility of a cycle is The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All the processes, taking place in the cycle of operation, must be extremely slow All of these The working parts of the engine must be friction free The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All the processes, taking place in the cycle of operation, must be extremely slow All of these The working parts of the engine must be friction free ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature. Boyle's law Joule's law Gay-Lussac law Charle's law Boyle's law Joule's law Gay-Lussac law Charle's law ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics First law of thermodynamics All of these Does not enable to determine change in entropy Enables to determine change in internal energy of the system Provides relationship between heat, work and internal energy All of these Does not enable to determine change in entropy Enables to determine change in internal energy of the system Provides relationship between heat, work and internal energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will Increase/decrease depending on application Decrease Increase Remain unchanged Increase/decrease depending on application Decrease Increase Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A heat exchange process in which the product of pressure and volume remains constant is known as Heat exchange process Hyperbolic process Isentropic process Throttling process Heat exchange process Hyperbolic process Isentropic process Throttling process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Carnot cycle has maximum efficiency for Diesel engine Irreversible engine Reversible engine Petrol engine Diesel engine Irreversible engine Reversible engine Petrol engine ANSWER DOWNLOAD EXAMIANS APP
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