Steam Boilers, Engines, Nozzles and Turbines The feed check valve is used in order to Recirculate unwanted feed 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 Regulate flow of boiler water Recirculate unwanted feed 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 Regulate flow of boiler water ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________ numbers of stages are required. Equal None of the listed here Less More Equal None of the listed here Less More ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in meters, and T1 = Absolute temperature of air outside the chimney in K) T1 /176.5H 176.5H/T1 88.25H/T1 T1 /88.25H T1 /176.5H 176.5H/T1 88.25H/T1 T1 /88.25H ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p₂) will be 9.9 bar 3.3 bar 5.46 bar 8.2 bar 9.9 bar 3.3 bar 5.46 bar 8.2 bar ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The temperature of flue gases at air heater outlet should be Less than wet bulb temperature of flue gases 100°C Below dew point temperature of flue gases Above dew point temperature of flue gases Less than wet bulb temperature of flue gases 100°C Below dew point temperature of flue gases Above dew point temperature of flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about pulverized fuel firing? It is the best technique for burning high ash content fuel having low fusion ash Fuel burns economically High burning rate is possible Heat release can be easily controlled It is the best technique for burning high ash content fuel having low fusion ash Fuel burns economically High burning rate is possible Heat release can be easily controlled ANSWER DOWNLOAD EXAMIANS APP
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