Hydraulics and Fluid Mechanics in ME For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is constant dependent only on Reynolds number dependent on relative roughness only a function of Reynolds number and relative roughness constant dependent only on Reynolds number dependent on relative roughness only a function of Reynolds number and relative roughness ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For centrifugal pump impeller, the maximum value of the vane exit angle is 25° to 30° 20° to 25° 15° to 20° 10° to 15° 25° to 30° 20° to 25° 15° to 20° 10° to 15° ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Air vessels in reciprocating pump are used to Increase pump efficiency Reduce acceleration to minimum Smoothen flow Save pump from cavitations Increase pump efficiency Reduce acceleration to minimum Smoothen flow Save pump from cavitations ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The hammer blow in pipes occurs when The flow of fluid through the pipe is suddenly brought to rest by closing of the valve The flow of fluid through the pipe is gradually brought to rest by closing of the valve The pipe bursts under high pressure of fluid There is excessive leakage in the pipe The flow of fluid through the pipe is suddenly brought to rest by closing of the valve The flow of fluid through the pipe is gradually brought to rest by closing of the valve The pipe bursts under high pressure of fluid There is excessive leakage in the pipe ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Axial flow pump is started with its delivery valve Kept fully closed Irrespective of any position Kept fully open Kept 50% open Kept fully closed Irrespective of any position Kept fully open Kept 50% open ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called Positive gauge pressure Absolute pressure Vacuum pressure Gauge pressure Positive gauge pressure Absolute pressure Vacuum pressure Gauge pressure ANSWER DOWNLOAD EXAMIANS APP
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