Steam Boilers, Engines, Nozzles and Turbines Gusset stays in a boiler are provided to Avoid explosion in furnace Prevent leakage of hot flue gases Prevent the bulging of flat surfaces Support furnace freely from top Avoid explosion in furnace Prevent leakage of hot flue gases Prevent the bulging of flat surfaces Support furnace freely from top ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines During polytropic process All of these Steam may be wet, dry or superheated after expansion Heat transfer takes place across cylinder walls Work is done All of these Steam may be wet, dry or superheated after expansion Heat transfer takes place across cylinder walls Work is done ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The size of a boiler drum in pulverized fuel fired boiler, as its size and capacity, (steam pressure and flow ratings) increase Remains unchanged Decreases Increases Increases/decreases depending on steam temperature requirements Remains unchanged Decreases Increases Increases/decreases depending on steam temperature requirements ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the volume at cut-off to the swept volume is called Cut-off ratio None of these Clearance ratio Expansion ratio Cut-off ratio None of these Clearance ratio Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In an ideal impulse turbine, the Absolute velocity at the inlet of moving blade is equal to that at the outlet Whirl velocity at inlet is equal to that at the outlet Relative velocity at the inlet of the moving blade is equal to that at the outlet Axial velocity at inlet is equal to that at the outlet Absolute velocity at the inlet of moving blade is equal to that at the outlet Whirl velocity at inlet is equal to that at the outlet Relative velocity at the inlet of the moving blade is equal to that at the outlet Axial velocity at inlet is equal to that at the outlet ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in a Scotch marine boiler are Horizontal Vertical None of the listed here Inclined Horizontal Vertical None of the listed here Inclined ANSWER DOWNLOAD EXAMIANS APP
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