A. smoothen flow
B. reduce acceleration to minimum
C. increase pump efficiency
D. save pump from cavitation
E. increase pump head

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Related Mcqs:

  1. Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of_______________?
    A. 39.2% B. 49.2% C. 68.8% D. 84.8% E. 91.6%....
  2. Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of__________________?
    A. 39.2% B. 49.2% C. 68.8% D. 84.8% E. 91.6%....
  3. 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 E. swept volume vs speed...
  4. If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water would discharge_____________________?
    A. same quantity of liquid B. 0.75 Q C. Q/0.75 D. 1.5 Q E. none of the above...
  5. A turbine pump is basically a centrifugal pump equipped additionally with_________________?
    A. adjustable blades B. backward curved blades C. vaned diffusion casing D. inlet guide blades E. totally submerged operation facility...
  6. Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of____________________?
    A. high initial and maintenance cost B. lower discharge C. lower speed of operation D. necessity of air vessel E. all of the above...
  7. For starting an axial flow pump, its delivery valve should be____________________?
    A. closed B. open C. depends on starting condition and flow desired D. could be either open or closed E. partly open and partly closed...
  8. In a centrifugal pump casing, the flow of water leaving the_______________?
    A. radial B. radial C. centrifugal D. rectilinear E. vortex...
  9. Casting of a centrifugal pump is designed so as to minimize________________?
    A. friction loss B. cavitation C. static head D. loss of kinetic energy E. starting time...
  10. For very high discharge at low pressure such as for flood control and irrigation applications, following type of pump is preferred_________________?
    A. centrifugal B. axial flow C. reciprocating D. mixed flow E. none of the above...
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