Low specific speed of a pump implies it is____________________?

Related Mcqs:

1. 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
   E. none of the above

2. 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

3. Low specific speed of turbine implies it is__________________?

   A. propeller turbine
   B. Francis turbine
   C. impulse turbine
   D. any one of the above
   E. none of the above

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. High specific speed of turbine implies it is__________________?

   A. propeller turbine
   B. Francis turbine
   C. impulse turbine
   D. any one of the above
   E. none of the above

6. The specific speed of turbine is defined as the speed of a unit___________________?

   A. of such a size that it delivers unit dis-charge at unit head
   B. of such a size that it delivers unit dis-charge at unit power
   C. of such a size that it requires unit power per unit head
   D. of such a size that it produces unit horse power with unit head
   E. none of the above

7. 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

8. Medium specific speea of turbine implies it is___________________?

   A. propeller turbine
   B. Francis turbine
   C. impulse turbine
   D. any one of the above
   E. none of the above

9. 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

10. 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