The closed impeller of a centrifugal pump is not suitable for..clear fluidcorrosive fluidcloggy fluidviscous fluidSliding-vane pump can not handle...non-viscous fluidviscous fluidpaper publbfluid consisting slurriesCavitation can occur in...water turbinespumps and water turbinespumpspumps and fansThe swirl in Kaplan turbine is generated by....wicket gates (inlet guide vanes)directing the flow from radial to axial directionsadjustable propeller bladesO OO OO OO O

Answered: Image /qna-images/answer/317a2629-8629-4cff-b22a-2525b443f265.jpg

Answered: The closed impeller of a centrifugal…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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At mid-radius an axial turbine stage is designed for 50% reaction, zero outlet swirl, and an axial velocity component of 200 m/s (uniform through the stage). The absolute flow angle at outlet from the stator is 65° from the axial direction. a.At the design point, what is the work done by the fluid at mid-radius on the rotor (kJ/kg)? b.For no change from turbine design flow conditions, but with a 20% drop from design rotor rpm, estimate the work (kJ/kg) done by the rotor at mid-radius.
A 10,000-gallon water tank atop a building delivers fresh drinking water for itsoccupants. A top-floor resident and a bottom-floor resident are filling their bathtubs.Assuming frictionless pipes and isothermal flow, which one will fill faster?A. top floorB. bottom floorC. the tubs will fill at the same rateD. need more information
Slip of a reciprocating pump is negative, when____ A•suction pipe is short and pump is running at low speeds B•delivery pipe is long and pump is running at high speeds C•suction pipe is short and delivery pipe is long and the pump is running at low speeds D•suction pipe is long and delivery pipe is short and the pump is running at high speeds.
Figure 8.18 shows a system used to spray polluted water into the air to increase the water's oxygen content and to cause volatile solvents in the water to vaporize. The pressure at point B just ahead of the nozzle must be 25.0 psig for proper nozzle performance. The pressure at point A (the pump inlet) is -3.50 psig. The volume flow rate is 0.50 ft/s. The dynamic viscosity of the fluid is 4.0 x 105 lbs/ft². The specific gravity of the fluid is 1.026. Compute the power delivered by the pump to the fluid, considering friction energy loss in the discharge line.
why are centrifugal pumps so little used in fluid power systems
Is there a flaw in the pipeline design as shown in Flgure 4 ? (select one): (A) The strainer and foot valve should not be used as the combination may cause cavitation. (B) The foot valve should not be used as it may cause cavitation. (C) The pump should be placed at a higher elevation to prevent cavitation from occurring. (D) The gate valve should not be placed on the suction side of the pump as it may cause cavitation. (E) The intake is not placed deep enough below the water surface of the river as it may cause cavitation. (F) None Elevation 180 m- 450 All of Steel Pipe Diameter 250mm· Smooth Bend B Gate Valve- (wide open) River Elevation -Pump at Elevation 125 m 120 m Smooth Bend Sump -Strainer and foot valve at 115m Figure 4

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