Resultant pressure of the liquid in the case of an immersed body acts through____________________?
(A) centre of gravity
(B) centre of pressure
(C) metacentre
(D) centre of buoyancy
(D) in between e.g. and centre of pressure
An open vessel of water is accelerated up an inclined plane. The free water surface will__________________?
(A) be horizontal
(B) make an angle in direction of inclination of inclined plane
(C) make an angle in opposite direction to inclination of inclined plane
(D) any one of above is possible
(D) none of the above
The equation of continuity holds good when the flow____________________?
(A) is steady
(B) is one dimensional
(C) velocity is uniform at all the cross sections
(D) all of the above
(D) none of the above
Pitot tube is used for measurement of_________________?
(A) pressure
(B) flow
(C) velocity
(D) dsscharge
(D) viscosity
The velocity of jet of water travelling out of opening in a tank filled with water is proportional to_________________?
(A) head of water (h)
(B) h2
(C) V/T
(D) h2
(D) h3/1
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?
(A) 0.5
(B) 0.4
(C) 0.515
(D) 0.5
(D) none of the above
A streamline is defined as the line________________?
(A) parallel to central axis flow
(B) parallel to outer surface of pipe
(C) of equal yelocity in a flow
(D) along which the pressure drop is uniform
(D) which occurs in all flows
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