Steam Boilers, Engines, Nozzles and Turbines Water boils when its vapor pressure Equals the pressure of water in the container Equals that of the surroundings Equals 760 mm of mercury Equals to atmospheric pressure Equals the pressure of water in the container Equals that of the surroundings Equals 760 mm of mercury Equals to atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An economiser in a boiler Decreases steam pressure Increases steam pressure Decreases fuel consumption Increases steam flow Decreases steam pressure Increases steam pressure Decreases fuel consumption Increases steam flow ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The feed check valve is used in order to Recirculate unwanted feed water Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Check level of water in boiler drum Recirculate unwanted feed water Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Check level of water in boiler drum ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are those in which Flue gases pass through tubes and water around it Forced circulation takes place Water passes through the tubes and flue gases around it Tubes are laid vertically Flue gases pass through tubes and water around it Forced circulation takes place Water passes through the tubes and flue gases around it Tubes are laid vertically ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as Pressure gauge Feed check valve Feed pump Injector Pressure gauge Feed check valve Feed pump Injector ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Hard coke is produced by carburization of coal at 700-850°C Atmospheric temperature 500-600°C 950-1100°C 700-850°C Atmospheric temperature 500-600°C 950-1100°C ANSWER DOWNLOAD EXAMIANS APP
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