What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water iterface? The balloon is of radius 0.1 m and is filled with air. 0.01πgH/8 0.01πgH/4 0.04πgH/3 4πg/3 TRUE ANSWER : ? YOUR ANSWER : ?
A stream line is Always the path of particle Fixed in space in steady flow Drawn normal to the velocity vector at every point A line connecting the mid points of flow cross-section TRUE ANSWER : ? YOUR ANSWER : ?
The simple pitot tube measures the __________ pressure. None of these Static Total Dynamic TRUE ANSWER : ? YOUR ANSWER : ?
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant? Unsteady Rotational Non-uniform Turbulent TRUE ANSWER : ? YOUR ANSWER : ?
Euler's equation of motion is a statement expressing Conservation of mass Newton's second law of motion Conservation of energy Newton's first law of motion TRUE ANSWER : ? YOUR ANSWER : ?
Shear stress in a fluid flowing in a round pipe Remains constant over the cross-section Is zero at the centre and varies linearly with the radius Is zero at the wall and increases linearly to the centre Varies parabolically across the cross-section TRUE ANSWER : ? YOUR ANSWER : ?
Purpose of relief valve in a reciprocating pump is to Facilitate unidirectional flow of liquid Control the rate of discharge Reduce the discharge pressure Protect the pump against developing excessive pressure TRUE ANSWER : ? YOUR ANSWER : ?
In an incompressible flow of fluid, the fluid Density does not change with pressure & temperature Is frictionless Temperature remains constant Compressibility is greater than zero TRUE ANSWER : ? YOUR ANSWER : ?
The Stoke's stream function applies to the None of these Cases of axial symmetry Irrotational flow only Ideal/non-viscous fluids only TRUE ANSWER : ? YOUR ANSWER : ?
In laminar flow through a round tube, the discharge varies As the square of the radius Inversely as the pressure drop Inversely as the viscosity Linearly as the viscosity TRUE ANSWER : ? YOUR ANSWER : ?