Fluid Mechanics 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 0.04πgH/3 0.01πgH/4 4πg/3 0.01πgH/8 0.04πgH/3 0.01πgH/4 4πg/3 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance). V/Vmax = (r/x)1/7 V/Vmax = (x/r)1/7 None of these V/Vmax = (x.r)1/7 V/Vmax = (r/x)1/7 V/Vmax = (x/r)1/7 None of these V/Vmax = (x.r)1/7 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The velocity profile exhibited by laminar flow of Newtonion fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an __________ with the apex at the centre line of the pipe. Hyperbola Semi-ellipse Semi-circle Parabola Hyperbola Semi-ellipse Semi-circle Parabola ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The ratio of inertial forces to elastic forces is called the __________ number. Euler Weber Reynolds Mach Euler Weber Reynolds Mach ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The peripherial velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec. 1.8 186.2 12.4 736.4 1.8 186.2 12.4 736.4 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following is the most common pump for pumping either raw sewage or sludge? Reciprocating pump Gear pump Electromagnetic pump Centrifugal pump Reciprocating pump Gear pump Electromagnetic pump Centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS