Slurries can be most conveniently pumped by a _______________ pump?

Related Mcqs:

1. 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

2. A liquid is pumped at the rate of 600 litres using 1000 rpm. If the rpm is changed to 1100, the liquid pumped is _____________ litres?

   A. 600
   B. 660
   C. 1.1
   D. 60

3. 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

4. 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

5. 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.

6. Medium viscosity lubricating oil can be most ideally pumped by a ______________ pump?

   A. Vane
   B. Piston
   C. Centrifugal
   D. Plunger

7. 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.

8. Flow rate of high velocity flue gas discharged through a stack to the atmosphere can be most conveniently measured by a _________________?

   A. Pitot tube
   B. Manometer
   C. Rotameter
   D. None of these

9. Very small pressure difference (< 5 mm water column) can be most conveniently measured by a/an _____________ manometer?

   A. U-tube water
   B. U-tube mercury
   C. Inclined tube mercury
   D. Inclined tube water

10. Open channel liquid flow is most conveniently measured by a__________________?

    A. Hot wire anemometer
    B. Notch
    C. Rotameter
    D. Segmental orifice