Engineering Thermodynamics The condition for the reversibility of a cycle is All of these All the processes, taking place in the cycle of operation, must be extremely slow 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 of these All the processes, taking place in the cycle of operation, must be extremely slow 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The natural petroleum may be separated into Fuel oil Kerosene Petrol Lubricating oil Fuel oil Kerosene Petrol Lubricating oil ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when Process is isothermal Process is isentropic Process is isentropic and specific heat does not change with temperature Flow is uniform and steady Process is isothermal Process is isentropic Process is isentropic and specific heat does not change with temperature Flow is uniform and steady ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics First law of thermodynamics Enables to determine change in internal energy of the system All of these Provides relationship between heat, work and internal energy Does not enable to determine change in entropy Enables to determine change in internal energy of the system All of these Provides relationship between heat, work and internal energy Does not enable to determine change in entropy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Coke is produced From the finely ground coal by moulding under pressure with or without a binding material When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel When coal is first dried and then crushed to a fine powder by pulverizing machine By heating wood with a limited supply of air to a temperature not less than 280°C From the finely ground coal by moulding under pressure with or without a binding material When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel When coal is first dried and then crushed to a fine powder by pulverizing machine By heating wood with a limited supply of air to a temperature not less than 280°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An isolated system is one in which 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 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 ANSWER DOWNLOAD EXAMIANS APP
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