Hydraulics and Fluid Mechanics in ME The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to Twice the breadth Half the breadth Half the depth Twice the depth Twice the breadth Half the breadth Half the depth Twice the depth ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be 4 kN/m2 12 kN/m2 10 kN/m2 14 kN/m2 4 kN/m2 12 kN/m2 10 kN/m2 14 kN/m2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following statement is correct as regard to water wheels? They have slow speeds They give constant efficiency, even if the discharge is not constant All of these They are suitable even for low water heads They have slow speeds They give constant efficiency, even if the discharge is not constant All of these They are suitable even for low water heads ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by dQ/Q = 2 × (dH/H) dQ/Q = 3 × (dH/H) dQ/Q = 3/2 × (dH/H) dQ/Q = 5/2 × (dH/H) dQ/Q = 2 × (dH/H) dQ/Q = 3 × (dH/H) dQ/Q = 3/2 × (dH/H) dQ/Q = 5/2 × (dH/H) 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 0.36 0.46 0.56 0.26 0.36 0.46 0.56 0.26 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The coefficient of discharge for an external mouthpiece depends upon Length of mouthpiece Pressure of liquid Area of mouthpiece Velocity of liquid Length of mouthpiece Pressure of liquid Area of mouthpiece Velocity of liquid ANSWER DOWNLOAD EXAMIANS APP
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