Top 150+ Solved Fluid Properties and Flow Characteristics MCQ Questions Answer
Q. A fluid in equilibrium can't sustain
a. Tensile stress
b. Compressive stress
c. Shear stress
d. Bending stress
Q. Liquids
a. Cannot be compressed
b. Occupy definite volume
c. Are not affected by change in pressure and temperature
d. None of the above
Q. When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shapeof
a. A triangle
b. A paraboloid
c. An ellipse
d. None of these
Q. Fluid is a substance that
a. Cannot be subjected to shear forces
b. Always expands until it fills any container
c. Has the same shear stress at a point regardless of its motion
d. Cannot remain at rest under action of any shear force
Q. The property of a fluid which enables it to resist tensile stress is known as
a. Compressibility
b. Surface tension
c. Cohesion
d. Adhesion
Q. The surface tension of mercury at normal temperature compared to that of water is
a. More
b. Less
c. Same
d. More or less depending on size of glass tube
Q. The unit of viscosity is
a. Meters² per sec
b. kg-sec/meter
c. Newton-sec per meter²
d. Newton-sec per meter
Q. Choose the wrong statement. Alcohol is used in manometer, because
a. Its vapour pressure is low
b. It provides suitable meniscus for the inclined tube
c. Its density is less
d. It provides longer length for a given pressure difference
Q. A fluid which obeys the Newton's law of viscosity is termed as
a. Real fluid
b. Ideal fluid
c. Newtonian fluid
d. Non-Newtonian fluid
Q. In order that flow takes place between two points in a pipeline, the differential pressurebetween these points must be more than
a. Frictional force
b. Viscosity
c. Surface friction
d. All of the above
Q. The value of coefficient of velocity for a sharp edged orifice __________ with the head ofwater.
a. Decreases
b. Increases
c. Remain same
d. None of these
Q. If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, thenthe free level of fluid in a dipped glass tube will be
a. Higher than the surface of liquid
b. The same as the surface of liquid
c. Lower than the surface of liquid
d. Unpredictable
Q. A one dimensional flow is one which
a. Is uniform flow
b. Is steady uniform flow
c. Takes place in straight lines
d. Involves zero transverse component of flow
Q. According to Manning's formula, the discharge through an open channel is (where M =Manning's constant)
a. A × M × m1/2 × i2/3
b. A × M × m2/3 × i1/2
c. A1/2 × M2/3 × m × i
d. A2/3 × M1/3 × m × i
Q. The property of fluid by virtue of which it offers resistance to shear is called
a. Surface tension
b. Adhesion
c. Adhesion
d. Viscosity