A. net head
B. absolute velocity
C. blade velocity
D. flow
E. relative velocity of flow at inlet

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Related Mcqs:

  1. For small discharge at high pressure, following pump is preferred_____________________?
    A. centrifugal B. axial flow C. mixed flow D. propeller E. reciprocating...
  2. 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...
  3. Centrifugal pump is started with its delivery valve __________________?
    A. kept fully closed B. kept fully open C. irrespective of any position D. kept 50% open E. none of the above...
  4. 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° E. 80-90°....
  5. 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 E. spiral vortex flow...
  6. The flow rate in gear pump___________________?
    A. increases with increase in pressure B. decreases with increase in pressure C. more or less remains constant with in-crease in pressure D. unpredictable E. none of the above...
  7. According to fan laws, at constant speed and capacity, the pressure and power vary_____________________?
    A. directly as the air or gas density B. inversely as square root of density C. inversely as density D. as square of density E. as square root of density...
  8. Specific speed for reaction turbines ranges from___________________?
    A. 0 to 4.5 B. 10 to 100 C. 80 to 200 D. 250 to 300 E. none of the above...
  9. 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...
  10. In a centrifugal pump casing, the flow of water leaving the impeller, is___________________?
    A. rectilinear flow B. radial flow C. free vortex motion D. forced vortex E. none of the above...
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