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 Give maximum strength Withstand pressure inside boiler Resist intense heat in fire box Give maximum space Give maximum strength Withstand pressure inside boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of fire tubes in Cochran boiler is of the order of 8 cm 12 cm 2 cm 6 cm 8 cm 12 cm 2 cm 6 cm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A nozzle is said to be a divergent nozzle When the cross-section of the nozzle decreases continuously from entrance to exit None of these When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit When the cross-section of the nozzle increases continuously from entrance to exit When the cross-section of the nozzle decreases continuously from entrance to exit None of these When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit When the cross-section of the nozzle increases continuously from entrance to exit ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water boils when its vapor pressure Equals 760 mm of mercury Equals the pressure of water in the container Equals that of the surroundings Equals to atmospheric pressure Equals 760 mm of mercury Equals the pressure of water in the container Equals that of the surroundings Equals to atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Presence of moisture in fuel oil would Aid in proper combustion Clean the nozzles Because sputtering, possibly extinguishing flame Keep the burner tips cool Aid in proper combustion Clean the nozzles Because sputtering, possibly extinguishing flame Keep the burner tips cool ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine when the degree of reaction is zero, then there is Maximum heat drop in moving blades No heat drop in moving blades No heat drop in fixed blades Maximum heat drop in fixed blades Maximum heat drop in moving blades No heat drop in moving blades No heat drop in fixed blades Maximum heat drop in fixed blades ANSWER DOWNLOAD EXAMIANS APP
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