Steam Boilers, Engines, Nozzles and Turbines When the nozzle operates with the maximum mass flow, the nozzle is said to be Choked Under-damping Over-damping None of these Choked Under-damping Over-damping None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A _________ 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. Safety valve Blow off cock Fusible plug Stop valve Safety valve Blow off cock Fusible plug Stop valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the isentropic heat drop to the heat supplied, is called Stage efficiency Reheat factor Rankine efficiency Internal efficiency Stage efficiency Reheat factor Rankine efficiency Internal efficiency 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) 176.5H/T1 88.25H/T1 T1 /88.25H T1 /176.5H 176.5H/T1 88.25H/T1 T1 /88.25H T1 /176.5H ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of fire tubes in Cochran boiler is of the order of 8 cm 2 cm 6 cm 12 cm 8 cm 2 cm 6 cm 12 cm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In regenerative air preheaters, the heat is transferred Heat is transferred by bleeding some gas from furnace From a metal wall from one medium to another By direct mixing From heating an intermediate material and then heating the air from this material Heat is transferred by bleeding some gas from furnace From a metal wall from one medium to another By direct mixing From heating an intermediate material and then heating the air from this material ANSWER DOWNLOAD EXAMIANS APP
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