| Which of the following is the least incompressible fluid? |
A) Gasoline
B) Kerosene oil
C) Helium
D) Water
| Pascal-second is the unit of |
A) Pressure
B) Kinematic viscosity
C) Dynamic viscosity
D) Surface tension
| The tendency of a small drop of fallen water to remain in a spherical form is due to the property of |
A) Viscosity
B) Adhesion
C) Surface tension
D) Gravimetric pull
| An ideal fluid is a fluid |
A) which obeys Newton’s law of viscosity
B) which is incompressible and is having no viscosity
C) in which shear stress is directly proportional to the rate of shear strain
D) in which the boundary layer is zero.
| Surface tension explains the |
A) phenomenon of cavitation in a fluid flow
B) spherical shape of the drop of a liquid
C) rise of sap in a tree
D) flow of jet of oil in an unbroken stream
| According to Newton’s law of viscosity, shear stress is |
A) directly proportional to the velocity
B) inversely proportional to the velocity
C) directly proportional to the velocity gradient
D) directly proportional to viscosity
