General energy equation holds for_________________?
(A) steady flow
(B) turbulent flow
(C) laminar flow
(D) non-uniform flow
(D) all of the above
The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as_________________?
(A) one dimensional flow
(B) uniform flow
(C) steady flow
(D) turbulent flow
(D) streamline flow
The flow which neglects changes in a transverse direction is known as ____________________?
(A) one dimensional flow
(B) uniform flow
(C) steady flow
(D) turbulent flow
(D) streamline flow
The flow in which conditions do not change with time at any point, is known as _____________________?
(A) one dimensional flow
(B) uniform flow
(C) steady flow
(D) turbulent flow
(D) streamline flow
Flow occurring in a pipeline when a valve is being opened is ______________________?
(A) steady
(B) unsteady
(C) laminar
(D) vortex
(D) rotational
The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as___________________?
(A) one dimensional flow
(B) uniform flow
(C) steady flow
(D) turbulent flow
(D) streamline flow
The flow in which each liquid particle has a definite path and their paths do not cross each other is called____________________?
(A) one dimensional flow
(B) uniform flow
(C) steady flow
(D) turbulent flow
(D) streamline flow
Steady flow occurs when____________________?
(A) the direction and magnitude of the velocity at all points are identical
(B) the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
(C) the magnitude and direction of the velocity do not change from point to point in the fluid
(D) the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
(D) velocity, depth, pressure, etc. change from point to point in the fluid flow
Principle of similitude forms the basis of__________________?
(A) comparing two identical equipments
(B) designing models so that the result can be converted to prototypes
(C) comparing similarity between design and actual equipment
(D) hydraulic designs
(D) performing acceptance tests
Cavitation will begin when______________________?
(A) the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
(B) pressure becomes more than critical pressure
(C) flow is increased
(D) pressure is increased
(D) none of the above