Fluid Mechanics The most economical flow control valve for use with large diameter pipes is a Butterfly valve None of these Globe valve Needle valve Butterfly valve None of these Globe valve Needle valve 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 < Δp > Δp Δp Δp² < Δp > Δp Δp Δp² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now Remain same Decrease Data insufficient to predict Increase Remain same Decrease Data insufficient to predict Increase 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 16 mm/s 12 mm/s 24 mm/s 28 mm/s 16 mm/s 12 mm/s 24 mm/s 28 mm/s ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate? 0.5 1.5 2 1 0.5 1.5 2 1 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Steady uniform flow is represented by flow through a/an Long pipe at constant rate None of these Long pipe at decreasing rate Expanding tube at constant rate Long pipe at constant rate None of these Long pipe at decreasing rate Expanding tube at constant rate ANSWER DOWNLOAD EXAMIANS APP