Steam Boilers, Engines, Nozzles and Turbines The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as Equivalent evaporation Power of a boiler Boiler efficiency Factor of evaporation Equivalent evaporation Power of a boiler Boiler efficiency Factor of evaporation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines During storage, the heating value of coal May increase or decrease depending upon the method of storage Increases Decreases Remain constant May increase or decrease depending upon the method of storage Increases Decreases Remain constant ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades The expansion of steam takes place partly in the fixed blades and partly in the moving blades The steam is expanded from a high pressure to a condenser pressure in one or more nozzles The pressure and temperature of steam remains constant The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades The expansion of steam takes place partly in the fixed blades and partly in the moving blades The steam is expanded from a high pressure to a condenser pressure in one or more nozzles The pressure and temperature of steam remains constant ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught may be produced by a Mechanical fan A steam jet Chimney All of these Mechanical fan A steam jet Chimney All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the volume at cut-off to the swept volume is called None of these Clearance ratio Cut-off ratio Expansion ratio None of these Clearance ratio Cut-off ratio Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be 320/3 m/s 640 m/s 160/3 m/s 640/3 m/s 320/3 m/s 640 m/s 160/3 m/s 640/3 m/s ANSWER DOWNLOAD EXAMIANS APP
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