Steam Boilers, Engines, Nozzles and Turbines A safety valve mainly used with locomotive and marine boilers is Lever safety valve High steam and low water safety valve Spring loaded safety valve Dead weight safety valve Lever safety valve High steam and low water safety valve Spring loaded safety valve Dead weight safety valve 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 Withstand pressure inside boiler Give maximum strength Give maximum space Resist intense heat in fire box Withstand pressure inside boiler Give maximum strength Give maximum space ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The dry saturated steam at very high pressure (150200 kg/cm²) when throttled to atmosphere will become Wet Remain dry saturated Superheated Dry Wet Remain dry saturated Superheated Dry ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The supersaturated flow of steam through a nozzle as compared to a stable flow, the available heat drop Decreases Remains the same Increases Is unpredictable Decreases Remains the same Increases Is unpredictable ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are those in which Work is done during adiabatic expansion Water passes through the tubes and flue gases around it Flue gases pass through tubes and water around it Change in enthalpy Work is done during adiabatic expansion Water passes through the tubes and flue gases around it Flue gases pass through tubes and water around it Change in enthalpy ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A regenerative steam cycle renders Decreased work output per unit mass of steam Increased thermal efficiency Decreased work output per unit mass of steam as well as increased thermal efficiency Increased work output per unit mass of steam Decreased work output per unit mass of steam Increased thermal efficiency Decreased work output per unit mass of steam as well as increased thermal efficiency Increased work output per unit mass of steam ANSWER DOWNLOAD EXAMIANS APP
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