Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Increase thermal efficiency of boiler Economize on fuel Increase flue gas temperature Extract heat from the exhaust flue gases Increase thermal efficiency of boiler Economize on fuel Increase flue gas temperature Extract heat from the exhaust flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The capacity of induced draft fan compared to forced draft fan in a boiler is More Less or more depending on size of boiler Less Same More Less or more depending on size of boiler Less Same ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The purpose of governing in steam turbines is to Maintain the speed of the turbine Reduce the effective heat drop Completely balance against end thrust Reheat the steam and improve its quality Maintain the speed of the turbine Reduce the effective heat drop Completely balance against end thrust Reheat the steam and improve its quality ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be 1.67 0.67 0.56 0.4 1.67 0.67 0.56 0.4 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following statement is correct for steam turbines as compared to reciprocating steam engines? A steam turbine develops higher speeds All of these The steam consumption is less The efficiency of steam turbine is higher A steam turbine develops higher speeds All of these The steam consumption is less The efficiency of steam turbine is higher ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In an impulse reaction turbine, the pressure drops gradually and continuously over None of these Both fixed and moving blades Moving blades Fixed blades None of these Both fixed and moving blades Moving blades Fixed blades ANSWER DOWNLOAD EXAMIANS APP
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