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  • Question
  • Molten soap mass is transported by a __________ pump.


  • Options
  • A. diaphragm
  • B. reciprocating
  • C. gear
  • D. centrifugal

  • Correct Answer
  • centrifugal 


  • Fluid Mechanics problems


    Search Results


    • 1. The maximum delivery pressure of compressors can be upto __________ atmospheres.

    • Options
    • A. 10
    • B. 100
    • C. 250
    • D. 1000
    • Discuss
    • 2. The normal stress is the same in all directions at a point in a fluid, when the fluid is

    • Options
    • A. non-viscous.
    • B. incompressible.
    • C. both (a) and (b).
    • D. having no motion of one fluid layer relative to the other.
    • Discuss
    • 3. A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20 microns settling in the same oil will have a settling velocity

    • Options
    • A. same as that of A.
    • B. one fourth as that of A.
    • C. twice as that of A.
    • D. four times as that of A.
    • Discuss
    • 4. When the momentum of one fluid is used for moving another fluid, such a device is called a/an

    • Options
    • A. jet pump
    • B. blower
    • C. acid egg
    • D. none of these
    • Discuss
    • 5. Maximum theoretical suction lift for water at 15°C by a centrifugal pump is 34 ft. The same for water at 90°C will be __________ ft.

    • Options
    • A. 40
    • B. 34
    • C. 8
    • D. 37
    • Discuss
    • 6. For the transfer of solution of thick slurry, the pump used is a __________ pump.

    • Options
    • A. reciprocating
    • B. gear
    • C. diaphragm
    • D. centrifugal
    • Discuss
    • 7. 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

    • Options
    • 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.
    • Discuss
    • 8. __________ pumps are axial flow pumps.

    • Options
    • A. Turbine
    • B. Propeller
    • C. Diffuser
    • D. none of these
    • Discuss
    • 9. A Bingham fluid of viscosity ? = 10 Pa.s and yield stress, ?0 = 10 KPa, is shared between flat parallel plates separated by a distance of 10-3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is

    • Options
    • A. 10 KPa
    • B. 20 KPa
    • C. 30 KPa
    • D. 40 KPa
    • Discuss
    • 10. Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.

    • Options
    • A. smaller than
    • B. larger than
    • C. same as
    • D. twice
    • Discuss


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