Steam Boilers, Engines, Nozzles and Turbines Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor) pa = pm × K pa = pm/K pa = K/pm pa = pm + K pa = pm × K pa = pm/K pa = K/pm pa = pm + K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) cot²α sin²α cos²α tan²α cot²α sin²α cos²α tan²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The nozzle efficiency is the ratio of Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades None of these Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The theoretical indicator diagram of a simple steam engine is based upon the assumption that All of these Steam is admitted at boiler pressure and exhausted at condenser pressure There is no pressure drop due to condensation The expansion (or compression) of the steam is hyperbolic All of these Steam is admitted at boiler pressure and exhausted at condenser pressure There is no pressure drop due to condensation The expansion (or compression) of the steam is hyperbolic ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The friction in the nozzle __________ exit velocity of steam. None of these Decreases Increases Has no effect on None of these Decreases Increases Has no effect on 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 0.25 0.8 0.4 0.5 0.25 0.8 0.4 0.5 ANSWER DOWNLOAD EXAMIANS APP
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