Q441
Open questionThe velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency and hd = Enthalpy or heat drop during expansion of steam in a nozzle)
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Mechanical Engineering · all questionsSteam Boilers, Engines, Nozzles And Turbines
Steam Boilers, Engines, Nozzles And Turbines
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Q442
Open questionReheating of steam in a turbine
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Q443
Open questionIf the critical pressure ratio for steam is 0.546, then the steam is initially
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Q444
Open questionThe function of injector used in small steam plants is to
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Q445
Open questionA condenser where circulating water flows through tubes which are surrounded by steam, in known as
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Q446
Open questionA wet vapor can be completely specified by
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Q447
Open questionA turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.
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Q448
Open questionThe 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)
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Q449
Open questionIn a reaction turbine, when steam flows through the fixed blades,
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Q450
Open questionOver fire burning is the phenomenon of
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Q451
Open questionIn a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be
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Q452
Open questionThe pressure of steam __________ while flowing through a nozzle.
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Q453
Open questionIn a single acting steam engine
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Q454
Open questionWillian’s line for the steam engine is a straight line relationship between the steam consumption per hour and
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Q455
Open questionIn natural circulation type boiler,
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Q456
Open questionIn forced recirculation type boiler,
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Q457
Open questionA steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as
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Q458
Open questionIn impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the blade is _________ the relative velocity of steam at inlet tip of the blade.
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Q459
Open questionThe missing quantity per stroke is equal to
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Q460
Open questionWater boils when its vapor pressure
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