Fluid Mechanics While starting a centrifugal pump, its delivery valve should be kept Either opened or closed; depending on the fluid viscosity Either opened or closed ; it does not make any difference Opened Closed Either opened or closed; depending on the fluid viscosity Either opened or closed ; it does not make any difference Opened Closed ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A stream line is Always the path of particle Drawn normal to the velocity vector at every point A line connecting the mid points of flow cross-section Fixed in space in steady flow Always the path of particle Drawn normal to the velocity vector at every point A line connecting the mid points of flow cross-section Fixed in space in steady flow ANSWER DOWNLOAD EXAMIANS APP
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. 0.04πgH/3 0.01πgH/8 4πg/3 0.01πgH/4 0.04πgH/3 0.01πgH/8 4πg/3 0.01πgH/4 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The temperature in isentropic flow Cannot drop and then increase again downstream Does not depend on Mach number Depends on Mach number only None of these Cannot drop and then increase again downstream Does not depend on Mach number Depends on Mach number only None of these 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. 736.4 186.2 1.8 12.4 736.4 186.2 1.8 12.4 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following pipe bends will incur the largest head loss ? 90° bend 30° bend 45° bend U-bend 90° bend 30° bend 45° bend U-bend ANSWER DOWNLOAD EXAMIANS APP
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