Low specific speed of a pump implies that, it is a/an ______________ pump?

Related Mcqs:

1. High specific speed of a pump implies that, it is a/an _____________ pump?

   A. Centrifugal
   B. Mixed flow
   C. Axial flow
   D. None of these

2. Higher specific speed (200-500) of a centrifugal pump indicates that the pump is of ______________ flow type?

   A. Axial
   B. Radial
   C. Mixed
   D. None of these

3. A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now_________________?

   A. Increase
   B. Decrease
   C. Remain same
   D. Data insufficient to predict

4. Specific speed of a centrifugal pump relates it with another pump having the___________________?

   A. Dynamic similarity
   B. Same efficiency
   C. Same speed
   D. Geometrical similarity

5. Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the _______________ decreases?

   A. NPSH required
   B. BHP required by the pump
   C. Head of the liquid pumped
   D. All A., B. and C.

6. The specific speed of a pump is defined as the speed of a unit of such a size, that it__________________?

   A. Delivers unit discharge at unit head
   B. Requires unit power for unit head
   C. Delivers unit discharge at unit power
   D. None of these

7. A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit E. to deliver water at a flow rate of 0.001 m3/s? The Fanning friction factor, f is 0.0062 ?

   A. 10 m
   B. 11 m
   C. 11.8 m
   D. 30 m

8. A centrifugal pump designed to pump water is employed to pump a more viscous oil. In the later case, the pump_________________?

   A. Develops a lower head
   B. Capacity is reduced
   C. Requires more power
   D. All A., B. and C.

9. A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, then the new head will be ______________ metres?

   A. 2
   B. 4
   C. 8
   D. 5.5

10. Specific speed of a centrifugal pump depends upon the ______________ head?

    A. Suction
    B. Delivery
    C. Manometric
    D. None of these