Steam Boilers, Engines, Nozzles and Turbines Primary air is the air used to Transport and dry the coal Air delivered by forced draft fan Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Provide air around burners for obtaining optimum combustion Transport and dry the coal Air delivered by forced draft fan Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Provide air around burners for obtaining optimum combustion ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Feed water conditioning in thermal power plants in done to Increase efficiency of thermal power plant Increase heat transfer rate Reduce hardness and for removal of solids Increase steam parameters Increase efficiency of thermal power plant Increase heat transfer rate Reduce hardness and for removal of solids Increase steam parameters ANSWER DOWNLOAD EXAMIANS APP
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 Four times Twice Three times Equal to Four times Twice ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as Stop valve Fusible plug Blow off cock Superheater Stop valve Fusible plug Blow off cock Superheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The average operating pressure of Benson boiler is 150 bar 100 bar 200 bar 250 bar 150 bar 100 bar 200 bar 250 bar ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a piston rod is To transfer motion from the piston to the cross head To convert heat energy of the steam into mechanical work To guide motion of the piston rod and to prevent it from bending To exhaust steam from the cylinder at proper moment To transfer motion from the piston to the cross head To convert heat energy of the steam into mechanical work To guide motion of the piston rod and to prevent it from bending To exhaust steam from the cylinder at proper moment ANSWER DOWNLOAD EXAMIANS APP
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