Steam Boilers, Engines, Nozzles and Turbines When the speed of the engine is controlled by means of a valve in a steam pipe, which regulates the pressure of steam entering the engine, then the governing is known as Cut-off governing Throttle governing By-pass governing None of these Cut-off governing Throttle governing By-pass governing None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The object of producing draught in a boiler is To provide an adequate supply of air for the fuel combustion All of the listed here To exhaust the gases of combustion from the combustion chamber To discharge the gases of combustion to the atmosphere through the chimney To provide an adequate supply of air for the fuel combustion All of the listed here To exhaust the gases of combustion from the combustion chamber To discharge the gases of combustion to the atmosphere through the chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The friction present between the steam and the nozzle surfaces reduces the heat drop by 15 to 25% 25 to 40% 40 to 60% 10 to 15% 15 to 25% 25 to 40% 40 to 60% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is known as Air-preheater Injector Economizer Superheater Air-preheater Injector Economizer Superheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio for initially dry saturated steam is 0.577 0.601 0.546 0.582 0.577 0.601 0.546 0.582 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of injector used in small capacity boilers is to Create vacuum Add make up water in the system Inject chemical solution in feed pump Pump water, similar to boiler feed pump Create vacuum Add make up water in the system Inject chemical solution in feed pump Pump water, similar to boiler feed pump ANSWER DOWNLOAD EXAMIANS APP
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