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_____________________?

Related Mcqs:

1. 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

2. In a centrifugal pump casing, the flow of water leaving the_______________?

   A. radial
   B. radial
   C. centrifugal
   D. rectilinear
   E. vortex

3. 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

4. Head developed by a centrifugal pump depends on___________________?

   A. impeller diameter
   B. speed
   C. fluid density
   D. type of casing
   E. A. and B. above

5. When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be__________________?

   A. horizontal
   B. nearly horizontal
   C. steep
   D. first rise and then fall
   E. none of the above

6. In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by_______________?

   A. designing new impeller
   B. trimming the impeller size to the required size by machining
   C. not possible
   D. some other alterations in the impeller
   E. none of the above

7. In a centrifugal pump, the liquid enters the pump__________________?

   A. at the top
   B. at the bottom
   C. at the center
   D. from sides
   E. none of the above

8. 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

9. 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
   E. none of the above

10. High 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
    E. none of the above