Fluid Mechanics Cavitation in a centrifugal pump can be avoided by keeping the Outlet pressure low Outlet pressure high Inlet pressure low Inlet pressure high Outlet pressure low Outlet pressure high Inlet pressure low Inlet pressure high ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The nominal size of a hose pipe is specified by its Thickness I.D. O.D. None of these Thickness I.D. O.D. None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Permanent loss in a venturimeter is about __________ percent of the pressure drop in theupstream cone. 10 1 40 70 10 1 40 70 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s). 24 24000 0.24 0.44 24 24000 0.24 0.44 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury) L/σ Σ 1/d D L/σ Σ 1/d D ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 10³ VOM + 10.94 x 10⁶ V²OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is 28 mm/s 16 mm/s 24 mm/s 12 mm/s 28 mm/s 16 mm/s 24 mm/s 12 mm/s ANSWER DOWNLOAD EXAMIANS APP