Flow occurring in a pipeline when a valve is being opened is _____ ?
A. laminar
B. rotational
C. steady
D. unsteady
Hydraulics and Fluid mechanics
Hydraulics and fluid mechanics MCQs with answers and explanations for civil engineering students. Fluid mechanics and hydraulic machines MCQs for civil engineering exams. Fluid mechanics & hydraulic machines questions with answers for competitive exams.
Flow 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 flow
Flow 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 flow
Uniform 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 constant
For 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 downward
An ideal flow of any fluid must satisfy _____ ?
A. Newton’s law of viscosity
B. boundary layer theory
C. Pascal law
D. continuity equation
Upper surface of a weir over which water flows is known is ___ ?
A. sill
B. weir top
C. crest
D. nappe
Region between the separation streamline and the boundary surface of the solid body is known as _____ ?
A. lift
B. boundary layer
C. drag
D. wake
A 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. 0.6
In a free vortex motion, the radial component of velocity everywhere is ____ ?
A. zero
B. non-zero and finite
C. maximum
D. All of them