Fluid Mechanics The ratio of inertial forces to gravity forces is called the __________ number. Weber Mach Froude Euler Weber Mach Froude Euler ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For water, when the pressure increases, the viscosity Also increases First decreases, and then increases Decreases Remains constant Also increases First decreases, and then increases Decreases Remains constant 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. 0.01πgH/8 0.04πgH/3 4πg/3 0.01πgH/4 0.01πgH/8 0.04πgH/3 4πg/3 0.01πgH/4 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will Increase Decrease Remain same Data insufficient to predict pressure drop Increase Decrease Remain same Data insufficient to predict pressure drop ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is Δp² < Δp Δp > Δp Δp² < Δp Δp > Δp ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062. 11 m 10 m 12 m 20 m 11 m 10 m 12 m 20 m ANSWER DOWNLOAD EXAMIANS APP
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