Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a reaction turbine is 2 cos²α/(1 + cos²α) (1 + cos²α)/2 cos²α 2 sin²α/(1 + sin²α) (1 + sin²α)/2 sin²α 2 cos²α/(1 + cos²α) (1 + cos²α)/2 cos²α 2 sin²α/(1 + sin²α) (1 + sin²α)/2 sin²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Caking coals are those which Show little or no fusing action Burn freely Form lumps or masses of coke Burn completely Show little or no fusing action Burn freely Form lumps or masses of coke Burn completely ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In order to reduce the rotor speed of an impulse turbine, the method employed is All of these Pressure compounding Pressure-velocity compounding Velocity compounding All of these Pressure compounding Pressure-velocity compounding Velocity compounding ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In reaction turbines, the axial thrust is due to None of these Pressure drop across the rotor Both (A) and (B) Change in axial velocity None of these Pressure drop across the rotor Both (A) and (B) Change in axial velocity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour) I.P. = a × m + b m = a + b × I.P. I.P. = b × m + a m = (b/I.P.) - a I.P. = a × m + b m = a + b × I.P. I.P. = b × m + a m = (b/I.P.) - a ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following substance will have same percentage in both proximate and ultimate analysis? Hydrogen Volatile matter Moisture Ash Hydrogen Volatile matter Moisture Ash ANSWER DOWNLOAD EXAMIANS APP
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