Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a reaction turbine is (1 + cos²α)/2 cos²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) (1 + sin²α)/2 sin²α (1 + cos²α)/2 cos²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) (1 + sin²α)/2 sin²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The amount of water evaporated in kg per kg of fuel burnt is called Equivalent evaporation from and at 100° C Evaporative capacity of a boiler None of these Boiler efficiency Equivalent evaporation from and at 100° C Evaporative capacity of a boiler None of these Boiler efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The safety valve on boiler drum compared to safety valve on superheater is set at Same value Lower value Lower/higher depending on steam flow Higher value Same value Lower value Lower/higher depending on steam flow Higher value ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts. and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is 0.4 0.5 0.8 0.25 0.4 0.5 0.8 0.25 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure boiler is one, which produces steam at a pressure more than 10 kg/cm² 5 kg/cm² Atmospheric pressure 7580 kg/cm² 10 kg/cm² 5 kg/cm² Atmospheric pressure 7580 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Clearance ratio is the ratio of Swept volume to the clearance volume Clearance volume to the volume at cut-off Clearance volume to the swept volume Volume at cut-off to the swept volume Swept volume to the clearance volume Clearance volume to the volume at cut-off Clearance volume to the swept volume Volume at cut-off to the swept volume ANSWER DOWNLOAD EXAMIANS APP
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