Gradually varied flow is__________________?
(A) steady uniform
(B) non-steady non-uniform
(C) non-steady uniform
(D) steady non-uniform
(D) true one-dimensional
Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?
(A) 1000 kg
(B) 4000 kg
(C) 2000 kg
(D) 8000 kg
(D) 16000 kg
Rotameter is a device used to measure______________?
(A) absolute pressure
(B) velocity of fluid
(C) flow
(D) rotation
(D) velocity of air
In the case of steady flow of a fluid, the acceleration of any fluid particle is________________?
(A) constant
(B) variable
(C) zero
(D) zero under limiting conditions
(D) never zero
During the opening of a valve in a pipe line, the flow is_________________?
(A) steady
(B) unsteady
(C) uniform
(D) laminar
(D) free vortex type
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
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
Two dimensional flow occurs when________________?
(A) the direction and magnitude of the velocity at all points are identical
(B) the velocity of successive fluid particles, at any point, is the same at successive 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
For a body floating in a liquid the normal pressure exerted by the liquid acts at ____________________?
(A) bottom surface of the body
(B) e.g. of the body
(C) metacentre
(D) all points on the surface of the body
(D) all of the above