Hydraulics and Fluid Mechanics in ME A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension) 4σ cosα/wd σ cosα/4wd 4wd/σ cosα wd/4σ cosα 4σ cosα/wd σ cosα/4wd 4wd/σ cosα wd/4σ cosα ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a forced vortex motion, the velocity of flow is directly proportional to the square of its radial distance from the axis of rotation directly proportional to its radial distance from axis of rotation inversely proportional to its radial distance from the axis of rotation inversely proportional to the square of its radial distance from the axis of rotation directly proportional to the square of its radial distance from the axis of rotation directly proportional to its radial distance from axis of rotation inversely proportional to its radial distance from the axis of rotation inversely proportional to the square of its radial distance from the axis of rotation ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wave), the portion of pipe length subjected to maximum head is L/4 L/3 L/2 L L/4 L/3 L/2 L ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The velocity of the liquid flowing through the divergent portion of a Venturimeter Increases Decreases Remains constant Depends upon mass of liquid Increases Decreases Remains constant Depends upon mass of liquid ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The pressure measured with the help of a pressure gauge is called Gauge pressure Atmospheric pressure Absolute pressure Mean pressure Gauge pressure Atmospheric pressure Absolute pressure Mean pressure ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid) wH2/4 wH wH/2 wH2/2 wH2/4 wH wH/2 wH2/2 ANSWER DOWNLOAD EXAMIANS APP
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