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Mechanical Engineering · all questions

Steam Boilers, Engines, Nozzles And Turbines
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The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)

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A compound steam engine in which the high pressure and low pressure cylinders have common piston rod, is called

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Pick up the wrong statement about critical condition of steam

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Parson's turbine is a

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When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.

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Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value

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Locomotive boiler is a

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Throttle governing of steam engines is a method of controlling the engine output by varying

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Cut-off governing of steam engines is a method of controlling the engine output by varying

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Lancashire boiler is used where working pressure and power required are

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The stage efficiency () is given by (where = Blading efficiency and = Nozzle efficiency)

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The dry saturated steam at very low pressure, (510 kg/cm2) when throttled to atmosphere will become

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The dry saturated steam at very high pressure (150 - 200 kg/cm2) when throttled to atmosphere will become

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Reheating of steam under ideal conditions takes place at constant

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A binary vapor plant consists of

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Feed water conditioning in thermal power plants in done to

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The density of supersaturated steam is about __________ that of the ordinary saturated vapor at the corresponding pressure.

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A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is known as

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The ratio of brake power to the indicated power is known as

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The ratio of the isentropic heat drop to the heat supplied, is called

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