Quiz  /  MCQ On Viscosity

  • 1. 
    Which of these fluids has the highest viscosity?

  • Water
  • Honey
  • Blood
  • Air

  • 2. 
    Which of the following represents viscosity?

  • Potential energy stored in fluid
  • Resistance to fluid motion
  • Roughness of the surface
  • The pressure difference between the two fluids

  • 3. 
    What is the SI unit of viscosity?

  • Candela
  • Poiseiulle
  • Newton/m
  • No units

  • 4. 
    What happens to the viscosity of liquid with the increase in temperature

  • It increases
  • It decreases
  • It may increase or decrease
  • No change

  • 5. 
    What do we call the maximum velocity of a fluid in a tube for which the flow remains streamlined?

  • Hyper velocity
  • critical velocity
  • Stream velocity
  • Laminar velocity

  • 6. 
    Which of the following represents Kinematic viscosity?

  • Viscosity/temperature
  • Viscosity/area
  • Viscosity/density
  • Viscosity/mass

  • 7. 
    Which of these ratios gives the value of viscosity of fluid?

  • Ratio of the shearing stress to the weight of the fluid
  • Ratio of the shearing stress to the density of the fluid
  • Ratio of the velocity gradient and shearing stress
  • The ratio of the shearing stress to the velocity gradient

  • 8. 
    The relative motion between the adjacent layers of a fluid in motion is called viscous force. Which of the flowing suits the best in the sentence?

  • Effects at some conditions
  • Never affects
  • Opposes
  • Facilitates

  • 9. 
    Which among the following statement is the definition of a pseudoplastic liquid?

  • It is a liquid that becomes less viscous over time when constant shear stress is applied
  • As the rate of shear increases, it becomes less viscous
  • When constant shear stress is applied the liquid becomes more viscous over time
  • A liquid which becomes more viscous as the rate of shear increases

  • 10. 
    Which is the following is the correct definition of solubility?

  • The rate at which a solute dissolves into a solvent
  • The ability of a solid particle to disperse throughout a liquid continuous phase
  • The rate at which the immiscible liquid droplets disperse within a second in the liquid phase
  • The ability of a solute to dissolve into a solvent
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