Mechanical Engineering :: Steam Nozzles and Turbines
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The ratio of the isentropic heat drop to the heat supplied, is called
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When the cross-section of a nozzle first increases from its entrance to throat, and then decreases from its throat to exit, it is not a convergent-divergent nozzle.
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The efficiency ratio is the ratio of total useful heat drop to the total isentropic heat drop.
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The purpose of governing in steam turbines is to
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De-Laval turbines are mostly used
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The reheat factor depends upon
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In an impulse turbine
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A nozzle is said to be a divergent nozzle
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The ratio of the cumulative heat drop to the isentropic heat drop is called reheat factor.
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The compounding of turbines is done in order to
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A.
when the cross-section of the nozzle increases continuously from entrance to exit |
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B.
when the cross-section of the nozzle decreases continuously from entrance to exit |
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C.
when the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit |
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D.
none of the above |