Hydraulics and Fluid Mechanics MCQs with answers PDF for test preparation. Includes Fluid Mechanics MCQ Civil Engineering PDF download, Hydraulics and Fluid Mechanics MCQ PDF download, and Fluid Mechanics questions and solutions PDF.
Flow occurring in a pipeline when a valve is being opened is _____ ?
A. laminar
B. rotational
C. steady
D. unsteadyFlow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as _____ ?
A. steady flow
B. Germturbulent flowan
C. uniform flow
D. one dimensional flowFlow in which each liquid particle has a definite path and their paths do not cross each other is called ______ ?
A. streamline flow
B. turbulent flow
C. one dimensional flow
D. uniform flowUniform flow occurs when _____ ?
A. the flow is streamline
B. flow occurs at constant fate
C. the flow is steady
D. size and shape of the cross section in a particular length remain constantFor measuring flow by a venturimeter, if should be installed in ___ ?
A. inclined line with upward flow
B. in any direction and in any location
C. vertical line
D. inclined line with flow downwardAn ideal flow of any fluid must satisfy _____ ?
A. Newton’s law of viscosity
B. boundary layer theory
C. Pascal law
D. continuity equationUpper surface of a weir over which water flows is known is ___ ?
A. sill
B. weir top
C. crest
D. nappeRegion between the separation streamline and the boundary surface of the solid body is known as _____ ?
A. lift
B. boundary layer
C. drag
D. wakeA piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is _____ ?
A. 0.4
B. 0.3
C. 0.83
D. 0.6In a free vortex motion, the radial component of velocity everywhere is ____ ?
A. zero
B. non-zero and finite
C. maximum
D. All of them