Top 150+ Solved Fluid Properties and Flow Characteristics MCQ Questions Answer
Q. Capillary action is due to the
a. Surface tension
b. Cohesion of the liquid
c. Adhesion of the liquid molecules and the molecules on the surface of a solid
d. All of the above
Q. The intensity of pressure on an immersed surface __________ with the increase in depth.
a. Does not change
b. Increases
c. Decreases
d. None of these
Q. Stoke is the unit of
a. Kinematic viscosity in C. G. S. units
b. Kinematic viscosity in M. K. S. units
c. Dynamic viscosity in M. K. S. units
d. Dynamic viscosity in S. I. units
Q. The vapour pressure over the concave surface is
a. Less man the vapour pressure over the plane surface
b. Equal to the vapour pressure over the plane surface
c. Greater than the vapour pressure over the plane surface
d. Zero
Q. Mercury is often used in barometer because
a. It is the best liquid
b. The height of barometer will be less
c. Its vapour pressure is so low that it may be neglected
d. Both (B) and (C)
Q. Gradually varied flow is
a. Steady uniform
b. Non-steady non-uniform
c. Non-steady uniform
d. Steady non-uniform
Q. According to Bernoulli's equation for steady ideal fluid flow
a. Principle of conservation of mass holds
b. Velocity and pressure are inversely proportional
c. Total energy is constant throughout
d. The energy is constant along a streamline but may vary across streamlines
Q. If the surface of liquid is convex, men
a. Cohesion pressure is negligible
b. Cohesion pressure is decreased
c. Cohesion pressure is increased
d. There is no cohesion pressure
Q. The atmospheric pressure with rise in altitude decreases
a. Linearly
b. First slowly and then steeply
c. First steeply and then gradually
d. Unpredictable
Q. Dynamic viscosity of most of the gases with rise in temperature
a. Increases
b. Decreases
c. Remain unaffected
d. Unpredictable
Q. According to Bernoulli's equation
a. Z + p/w + v²/2g = constant
b. Z + p/w - v²/2g = constant
c. Z - p/w + v²/2g = constant
d. Z - p/w - v²/2g = constant
Q. For a body floating in a liquid the normal pressure exerted by the liquid acts at
a. Bottom surface of the body
b. C.G. of the body
c. Metacenter
d. All points on the surface of the body
Q. Newton's law of viscosity is a relationship between
a. Pressure, velocity and temperature
b. Shear stress and rate of shear strain
c. Shear stress and velocity
d. Rate of shear strain and temperature