# Physics Quiz on Viscosity for IIT JEE, NEET, Medical & Engineering Exam

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## Physics Quiz on Viscosity

Quiz on Viscosity: Previous trends reveal that NEET aspirants find Physics as the most challenging section amongst the other sections. But most of them fail to decipher the reason behind this. This particularly can be as the candidates taking up this examination are predominantly medical aspirants with their subject of interest being Biology. Also, sections like Physics are more on theories, laws, numerical as opposed to Biology which is more of fact-based, life sciences and comprising of substantial explanations. In this post we are providing you Physics Quiz on Viscosity for NEET/JEE.

## Quiz on Viscosity

Q1. Which of these fluids has the highest viscosity?
a) Honey
b) Water
c) Blood
d) Air

a) Honey

Q2. What happens to the viscosity of liquid with the increase in temperature ?
a) It may increase or decrease
b) It decreases
c) It increases
d) No change

b) It decreases

Q3. Which of these ratios gives the value of viscosity of fluid?
a) Ratio of the shearing stress to the weight of the fluid
b) Ratio of the shearing stress to the density of the fluid
c) The ratio of the shearing stress to the velocity gradient
d) Ratio of the shearing stress to the weight of the fluid

c) The ratio of the shearing stress to the velocity gradient

Q4. Which is the following is the correct definition of solubility?
a) The ability of a solid particle to disperse throughout a liquid continuous phase
b) The rate at which a solute dissolves into a solvent
c) The ability of a solute to dissolve into a solvent
d) The rate at which the immiscible liquid droplets disperse within a second in the liquid phase

c) The ability of a solute to dissolve into a solvent

Q5. Which of the following represents viscosity?
a) Potential energy stored in fluid
b) Resistance to fluid motion
c) Roughness of the surface
d) The pressure difference between the two fluids

b) Resistance to fluid motion

Q6. Which among the following statement is the definition of a pseudo plastic liquid?
a) A liquid which becomes more viscous as the rate of shear increases
b) When constant shear stress is applied the liquid becomes more viscous over time
c) As the rate of shear increases, it becomes less viscous
d) It is a liquid that becomes less viscous over time when constant shear stress is applied

c) As the rate of shear increases, it becomes less viscous

Q7. 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?
a) Facilitates
b) Opposes
c) Never affects
d) Effects at some conditions

b) Opposes

Q8. What is the SI unit of viscosity?
a) Candela
b) Newton/m
c) Poiseiulle
d) No units

c) Poiseiulle

Q9. Which of the following represents Kinematic viscosity?
a) Viscosity/mass
b) Viscosity/density
c) Viscosity/area
d) Viscosity/temperature

b) Viscosity/density

Q10. What do we call the maximum velocity of a fluid in a tube for which the flow remains streamlined?
a) Critical velocity
b) Stream velocity
c) Laminar velocity
d) Hyper velocity

a) Critical velocity

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