Steam Boilers, Engines, Nozzles and Turbines For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine. Three times Equal to Twice Four times Three times Equal to Twice Four times ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An ideal regenerative cycle is Could be anything Less than Carnot cycle More than Carnot cycle Equal to Carnot cycle Could be anything Less than Carnot cycle More than Carnot cycle Equal to Carnot cycle ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The crown of the fire box is made hemispherical in order to Resist intense heat in fire box Give maximum space Withstand pressure inside boiler Give maximum strength Resist intense heat in fire box Give maximum space Withstand pressure inside boiler Give maximum strength 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 Superheater Air-preheater Injector Economizer Superheater Air-preheater Injector Economizer ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called Chimney draught Forced steam jet draught None of these Induced steam jet draught Chimney draught Forced steam jet draught None of these Induced steam jet draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Over fire burning is the phenomenon of Supply of excess, air Burning CO and unburnt in upper zone of furnace by supplying more air Supply of excess coal Fuel bed firing Supply of excess, air Burning CO and unburnt in upper zone of furnace by supplying more air Supply of excess coal Fuel bed firing ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS