A pressure head of 320 metres of water in meters of CCl4 (sp.gr = 1.6) will be__________________?

Related Mcqs:

1. 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

2. The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the_________________?

   A. Discharge
   B. Suction
   C. Suction minus vapor pressure of the liquid at suction temperature
   D. Discharge minus vapor pressure of the liquid at the discharge temperature

3. The pressure drop per unit length of pipe incurred by a fluid ‘X’ flowing through pipe is Δp. If another fluid ‘Y’ having both the specific gravity & density just double of that of fluid ‘X’, flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be__________________?

   A. Δp
   B. 2Δp
   C. Δp2
   D. Δp/2

4. 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, the new discharge will be __________ litres/minute ?

   A. 500
   B. 200
   C. 1000
   D. 750

5. 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, the power consumed now will be _____________ hp?

   A. 0.5
   B. 2
   C. 4
   D. 1

6. Which of the following options will facilitate the achievement of a very high head (say 30 metres) in case of a centrifugal pump ?

   A. Increasing the impeller speed and the volute area
   B. Increasing the number of vanes in the impeller
   C. Mounting of two or more impellers in series on a single shaft
   D. Either of A., B. or C.

7. The pressure head on sudden contraction in a horizontal pipe is converted into the _____________ head?

   A. Elevation
   B. Velocity
   C. Both A. & B.
   D. Neither A. nor B.

8. 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

9. Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water column in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm)?

   A. H
   B. 12.6 H
   C. 13.6 H
   D. 14.6 H

10. A bed consists of particles of density 2000 kg/m3. If the height of the bed is 1.5 metres and its porosity 0.6, the pressure drop required to fluidise the bed by air is_________________?

    A. 25.61 kPa
    B. 11.77 kPa
    C. 14.86 kPa
    D. 21.13 kPa