A centrifugal pump is called a turbine pump, if it is having a_________________?

Related Mcqs:

1. 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...

2. 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...

3. 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....

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. Centrifugal pump can’t be used to pump _____________________?

   A. Molten sodium (used as a coolant in Fast Breeder Reactor) B. Moderately viscous vegetable oil used in soap industry C. Thick molten soap at 80°C D. None of the above...

7. 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...

8. Which is the correct relationship for a centrifugal pump? (Where, D = Impeller diameter, inches H = Head developed, ft of liquid pumped N = Speed of pump, rpm) ?

   A. D = 1840 H0.5/N B. D = 1840 N/H0.5 C. H = 1840 D0.5/N D. D = 1840 H/N...

9. The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec?

   A. 1.8 B. 12.4 C. 186.2 D. 736.4...

10. In case of a centrifugal pump, the ratio of total delivered pressure to pressure developed with the impeller is called the _____________ efficiency?

    A. Manometric B. Mechanical C. Volumetric D. Overall...