Viscosity

21. The viscosity of a fluid can be measured using ________.

a) rheometer

b) viscometer

c) hydrometer

d) barometer

22. Which of the following is not a type of viscometer?

a) Capillary viscometer

b) Falling ball viscometer

c) Rotational viscometer

d) Pressure viscometer

23. The viscosity of a fluid is often given by its ________.

a) coefficient of viscosity

b) density

c) pressure

d) temperature

24. Which law states that the shear stress in a fluid is directly proportional to the velocity gradient?

a) Newton’s law of motion

b) Boyle’s law

c) Pascal’s law

d) Hooke’s law

25. Which factor affects the viscosity of a gas?

a) Molecular weight

b) Pressure

c) Temperature

d) All of the above