Non uniform flow occurs when the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane velocity, depth, pressure, etc. change from point to point in the fluid flow the direction and magnitude of the velocity at all points are identical the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time TRUE ANSWER : ? YOUR ANSWER : ?
The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is at the centroid of the submerged area None of these always above the centroid of the area always below the centroid of the area TRUE ANSWER : ? YOUR ANSWER : ?
Normal depth in open channel flow is the depth of flow corresponding to laminar flow uniform flow unsteady flow Steady flow TRUE ANSWER : ? YOUR ANSWER : ?
Choose the wrong statement fluids conform to the shape of the con-taining vessels when in equilibrium, fluids cannot sustain tangential forces fluids are capable of flowing when in equilibrium, fluids can sustain shear forces TRUE ANSWER : ? YOUR ANSWER : ?
When a body floating in a liquid, is displaced slightly, it oscillates about center of buoyancy metacentre e.g. of body center of pressure TRUE ANSWER : ? YOUR ANSWER : ?
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to more than the weight of the body less than the weight of the body the weight of the body weight of the fluid displaced by the body TRUE ANSWER : ? YOUR ANSWER : ?
A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ? 1 : 5 1 :25 1:50 1 : 2.5 TRUE ANSWER : ? YOUR ANSWER : ?
Separation of flow occurs when All of these the pressure intensity reaches a minimum the boundary layer comes to rest the cross-section of a channel is reduced TRUE ANSWER : ? YOUR ANSWER : ?
Pressure of the order of 10''' torr can be measured by Bourdon tube Micro-manometer ionisastion gauge Pirani Gauge TRUE ANSWER : ? YOUR ANSWER : ?
Metacentric height is given as the distance between the center of gravity of the body and the center of pressure the center of gravity of the body and the center of buoyancy center of buoyancy and metacentre the center of gravity of the body andthe meta center TRUE ANSWER : ? YOUR ANSWER : ?