Steam Boilers, Engines, Nozzles and Turbines Blow off cock in a boiler is used to Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Increase the temperature of saturated steam without raising its pressure Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Increase the temperature of saturated steam without raising its pressure Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A nozzle is said to be a convergent nozzle 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 None of these When the cross-section of the nozzle decreases continuously from entrance to exit 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 None of these When the cross-section of the nozzle decreases continuously from entrance to exit ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The aim of a compound steam engine is To reduce the length of stroke To reduce the temperature range in each cylinder To reduce the ratio of expansion in each cylinder All of these To reduce the length of stroke To reduce the temperature range in each cylinder To reduce the ratio of expansion in each cylinder All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Hard coke is produced by carburization of coal at 700-850°C Atmospheric temperature 950-1100°C 500-600°C 700-850°C Atmospheric temperature 950-1100°C 500-600°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Size of boiler tubes is specified by Inside diameter and thickness Outside diameter and inside diameter Mean diameter and thickness Outside diameter and thickness Inside diameter and thickness Outside diameter and inside diameter Mean diameter and thickness Outside diameter and thickness ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Lancashire boiler is used where working pressure and power required are Moderate Low None of these High Moderate Low None of these High ANSWER DOWNLOAD EXAMIANS APP
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