Hydraulics and Fluid Mechanics in ME The hydraulic mean depth or the hydraulic radius is the ratio of 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 Area of flow and wetted perimeter Velocity of flow and area of flow None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by H = Hg - hf H = Hg + hf H = Hg × hf H = Hg/hf H = Hg - hf H = Hg + hf H = Hg × hf H = Hg/hf ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow) 0.707 D 0.577 D 0.423 D 0.223 D 0.707 D 0.577 D 0.423 D 0.223 D ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The centre of gravity of the volume of the liquid displaced is called None of the listed here Centre of pressure Centre of buoyancy Metacentre None of the listed here Centre of pressure Centre of buoyancy Metacentre ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following statement is correct as regard to water wheels? They are suitable even for low water heads All of these They have slow speeds They give constant efficiency, even if the discharge is not constant They are suitable even for low water heads All of these They have slow speeds They give constant efficiency, even if the discharge is not constant ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME An air vessel is provided at the summit in a siphon to Increase discharge Increase velocity Avoid interruption in the flow Maintain pressure difference Increase discharge Increase velocity Avoid interruption in the flow Maintain pressure difference ANSWER DOWNLOAD EXAMIANS APP
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