Hydraulics & Fluid Mechanics Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is (ii) and (iii) (i) and (ii) (i) and (iii) (i), (ii) and (iii) (ii) and (iii) (i) and (ii) (i) and (iii) (i), (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be negative value minimum maximum could be any value negative value minimum maximum could be any value ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics A large Roynold number is indication of turbulent flow smooth and streamline flow highly turbulent flow. LAMINAR FLOW turbulent flow smooth and streamline flow highly turbulent flow. LAMINAR FLOW ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is always above the centroid of the area always below the centroid of the area None of these at the centroid of the submerged area always above the centroid of the area always below the centroid of the area None of these at the centroid of the submerged area ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Non uniform flow occurs when the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time 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 fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time 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 fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is directly proportional to Reynolds number and independent of pipe wall roughness directly proportional to pipe wall roughness and independent of Reynolds number inversely proportional to Reynolds number and indpendent of pipe wall roughness inversely proportional to Reynolds number and directly proportional to pipe wall roughness directly proportional to Reynolds number and independent of pipe wall roughness directly proportional to pipe wall roughness and independent of Reynolds number inversely proportional to Reynolds number and indpendent of pipe wall roughness inversely proportional to Reynolds number and directly proportional to pipe wall roughness ANSWER DOWNLOAD EXAMIANS APP
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