Hydraulics and Fluid Mechanics in ME The hydraulic mean depth or the hydraulic radius is the ratio of Area of flow and wetted perimeter Velocity of flow and area of flow None of these Wetted perimeter and diameter of pipe Area of flow and wetted perimeter Velocity of flow and area of flow None of these Wetted perimeter and diameter of pipe ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For pipes, laminar flow occurs when Roynolds number is less than 2000 more than 4000 between 2000 and 4000 less than 4000 less than 2000 more than 4000 between 2000 and 4000 less than 4000 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is 0.56 0.36 0.26 0.46 0.56 0.36 0.26 0.46 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta. None of these Equal to Less than More than None of these Equal to Less than More than ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A liquid would wet the solid, if adhesion forces as compared to cohesion forces are less at low temperature and more at high temperature equal more less less at low temperature and more at high temperature equal more less ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is V1 / (V1 - V2) V1² / (V1² - V2²) (V1 - V2) / V1 (V1² - V2²) / V1² V1 / (V1 - V2) V1² / (V1² - V2²) (V1 - V2) / V1 (V1² - V2²) / V1² ANSWER DOWNLOAD EXAMIANS APP
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