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 Factor of evaporation Power of a boiler Equivalent evaporation Boiler efficiency Factor of evaporation Power of a boiler Equivalent evaporation Boiler efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the cross-section of a nozzle increases continuously from entrance to exit, it is called a Convergent nozzle None of these Divergent nozzle Convergent-divergent nozzle Convergent nozzle None of these Divergent nozzle Convergent-divergent nozzle ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diagram efficiency is the ratio of None of these Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades None of these Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The basic purpose of drum in boiler is to Remove salts from water Serve as storage of steam Serve as storage of feed water for water wall Separate steam from water Remove salts from water Serve as storage of steam Serve as storage of feed water for water wall Separate steam from water ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Blow off cock in a boiler is used to Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Increase the temperature of saturated steam without raising its pressure Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Increase the temperature of saturated steam without raising its pressure Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be 188 m/s 79 m/s 900 m/s 450 m/s 188 m/s 79 m/s 900 m/s 450 m/s ANSWER DOWNLOAD EXAMIANS APP
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