Top 550+ Solved Fluid Mechanics and Hydraulic Machines MCQ Questions Answer
Q. The branch of Engineering-science, which deals with water at rest or in motion is called
a. hydraulics
b. Fluid mechanics
c. Applied mechanics
d. Kinematics.
Q. A solid can resist which of the following stresses?
a. Tensile
b. Compressive
c. Shear
d. All of the above.
Q. .......... possesses no definite volume and is compressible.
a. Solid
b. Liquid
c. Gas
d. Vapour.
Q. The ratio of the specific weight of the liquid to the specific weight of a standard fluid is known as
a. Specific volume
b. Weight density
c. Specific gravity
d. Viscosity.
Q. The property of a fluid which determines its resistance to shearing stress is called
a. Viscosity
b. Surface tension
c. Compressibility
d. None of the above.
Q. Fluids which do not follow the linear relationship between shear stress and rate of deformation are termedas.... fluids.
a. Newtonian
b. Non-Newtonian
c. Dilatant
d. ideal
Q. The printer’s ink is an example of
a. Newtonian fluid
b. Non-Newtonian
c. Thixotropic substance
d. Elastic soli
Q. The viscosity of liquids ..... with increase in temperature.
a. Decreases
b. Increases
c. First decreases and then increases
d. First increases and then decreases.
Q. Surface tension is caused by the force of ..... at the free surface.
a. Cohesion
b. Adhesion
c. Both (a) and (b)
d. None of the above.
Q. Which of the following is an example of phenomenon of surface tension?
a. Rain drops
b. Rise of sap in a tree
c. Break up of liquid jets
d. All of the above.
Q. . ...... is a phenomenon by which a liquid rises into a thin glass tube above or below its general level.
a. Surface tension
b. Capillarity
c. Cohesion
d. Adhesion.
Q. Elasticity of fluids is measured in terms of
a. Young’s modulus of elasticity
b. Shear modulus of elasticity
c. Bulk modulus of elasticity
d. None of the above.
Q. Compressibility is the reciprocal of
a. Bulk modulus of elasticity
b. Shear modulus of elasticity
c. Young’s modulus of elasticity
d. Any of the above.
Q. Bulk modulus of elasticity is the ratio of
a. Tensile stress to tensile strain
b. Compressive stress to compressive strain
c. Compressive stress to volumetric strain
d. None of the above.