Steam Boilers, Engines, Nozzles and Turbines The dry saturated steam at very low pressure, (510 kg/cm²) when throttled to atmosphere will become Dry Superheated Wet Remain dry saturated Dry Superheated Wet Remain dry saturated ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are those in which Flue gases pass through tubes and water around it Work is done during adiabatic expansion Water passes through the tubes and flue gases around it Change in enthalpy Flue gases pass through tubes and water around it Work is done during adiabatic expansion Water passes through the tubes and flue gases around it Change in enthalpy ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Primary air is the air used to Air delivered by forced draft fan Provide air around burners for obtaining optimum combustion Transport and dry the coal Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Air delivered by forced draft fan Provide air around burners for obtaining optimum combustion Transport and dry the coal Convert CO (formed in lower zone of furnace) into CO₂ at higher zone ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The actual power supplied by the engine crankshaft is called None of these Indicated power Brake power Frictional power None of these Indicated power Brake power Frictional power ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following statement is correct for a compound steam engine? The cost of the engine, for the same power and economy, is more than that of a simple steam engine The temperature range per cylinder is increased, with corresponding increase in condensation The forces in the working parts are increased as the forces are distributed over more parts The ratio of expansion is reduced, thus reducing the length of stroke The cost of the engine, for the same power and economy, is more than that of a simple steam engine The temperature range per cylinder is increased, with corresponding increase in condensation The forces in the working parts are increased as the forces are distributed over more parts The ratio of expansion is reduced, thus reducing the length of stroke ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value 1 – moisture content (1 + moisture content) (1- moisture content) 1 + moisture content 1 – moisture content (1 + moisture content) (1- moisture content) 1 + moisture content ANSWER DOWNLOAD EXAMIANS APP
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