Any change in load is adjusted by adjusting following parameter on turbine______________?
A. Net head
B. Absolute velocity
C. Blade velocity
D. Flow
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Indicator diagram of a reciprocating pump is a graph between________________?
A. Flow vs swept volume
B. Pressure in cylinder vs swept volume
C. Flow vs speed
D. Pressure vs speed
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Medium specific speed of a pump implies it is_________________?
A. Centrifugal pump
B. Mixed flow pump
C. Axial flow pump
D. Any one of the above
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Motion of a liquid in a volute casing of a centrifugal pump is an example of____________________?
A. rotational flow
B. radial
C. forced spiral vortex flow
D. forced cylindrical vortex flow
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The horse power required in above case will be___________________?
A. Same
B. 0.75 b.h.p.
C. B.h.p./0.75
D. 1.5 b.h.p.
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For small discharge at high pressure, following pump is preferred_____________________?
A. centrifugal
B. axial flow
C. mixed flow
D. propeller
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Low specific speed of a pump implies it is____________________?
A. Centrifugal pump
B. Mixed flow pump
C. Axial flow pump
D. Any one of the above
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In a centrifugal pump, the liquid enters the pump__________________?
A. At the top
B. At the bottom
C. At the center
D. From sides
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In centrifugal pumps, maximum efficiency is obtained when the blades are_________________?
A. Straight
B. Bent forward
C. Bent backward
D. Radial
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The optimum value of vane exit angle for a centrifugal pump impeller is_________________?
A. 10-15°
B. 20-25°
C. 30-40°
D. 50-60°
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Word of the Day
27 Sep
Undesirable
not wanted or desirable because harmful, objectionable, or unpleasant.
غیر مطلوب، ناروا، نامناسب

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