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  • Question

  • 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

  • Correct Answer
  • 20 KPa 

    • Fluid Mechanics problems

    Search Results

    • 1. __________ pumps are axial flow pumps.

    • Options
    • A. Turbine
    • B. Propeller
    • C. Diffuser
    • D. none of these
      • Discuss
    • 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

    • 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
    • 3. For the transfer of solution of thick slurry, the pump used is a __________ pump.

    • Options
    • A. reciprocating
    • B. gear
    • C. diaphragm
    • D. centrifugal
      • Discuss
    • 4. Molten soap mass is transported by a __________ pump.

    • Options
    • A. diaphragm
    • B. reciprocating
    • C. gear
    • D. centrifugal
      • Discuss
    • 5. The maximum delivery pressure of compressors can be upto __________ atmospheres.

    • Options
    • A. 10
    • B. 100
    • C. 250
    • D. 1000
      • Discuss
    • 6. 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
    • 7. The dimension of dynamic viscosity is

    • Options
    • A. ML-1T-1
    • B. L2T-1
    • C. LT-2
    • D. ML-1T-2
      • Discuss
    • 8. Which of the following denotes the effect of compressibility in fluid flow?

    • Options
    • A. Weber number
    • B. Mach number
    • C. Euler number
    • D. Reynolds number
      • Discuss
    • 9. Schedule number of a pipe, which is a measure of its wall thickness, is given by

    • Options
    • A. 1000 P'/S
    • B. 100 P'/S
    • C. 1000 S/P'
    • D. 10000 P'/S
      • Discuss
    • 10. Which of the following is not a dimension-less parameter?

    • Options
    • A. Euler number
    • B. Specific gravity
    • C. Fanning friction factor
    • D. None of these
      • Discuss

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