Surface tension / viscosity

Two capillary tubes of different diameter are dipped in water,

the rise of water is_______

• The same in both tubes

• Greater in the tube of larger diameter

• Greater in the tube of smaller diameter

• Independent of the diameter in the tube

• None of the above

Answer explanation

Dancing of small piece of camphor on

the surface of the water is due to ...............

• Viscosity

• Surface tension

• Weight

• Lifting force

Which type of fluids have zero surface

tension?

• Real fluids

• Ideal fluids

• Both ideal and real fluids

• No fluids have zero surface tension

Hairs of shaving brush cling together

when it is removed form water due to....

• Force of attraction between hair

• Surface tension

• Viscosity of water

• Characteristic properties of hair

Rain water are spherical because of....

• Viscosity

• Air resistance

• Surface tension force

• Atmospheric pressure

Consider the following:-

1. 1. Water is more viscous than blood.

2. 2. Blood is more viscous than water.

3. 3. They can't be compared.

4. Which of the above is the best relation

5. between the viscosity blood or water ?

• 1 and 2 only

• 2 only

• 1 and 3 only

• More than one of the above

• None of the above

The viscosity of gases increase with

• Increase in temperature

• Decrease in temperature

• Increase in volume

• None of the above

Which one of the following affects the

efficiency of oil transportation through

pipeline?

• Surface tension

• Stress

• Viscosity

• None of the above

The viscosity of liquid

• Increases with increase in temperature

• Decrease with the increase of

  temperature

• Decrease with the decrease of

  temperature

• Remains constant regardless of any

  change in the temperature

Which of the following is correct about

viscosity?

• It occurs only in liquid

• It supports fluids flow

• It occurs in solid

• None of the above