Hydraulics and Fluid Mechanics in ME The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to 1/2 × sloping side 1/4 × (depth + breadth) 1/2 × depth 1/2 × breadth 1/2 × sloping side 1/4 × (depth + breadth) 1/2 × depth 1/2 × breadth ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The overall efficiency of a reaction turbine is the ratio of Power produced by the turbine to the energy actually supplied by the turbine Work-done on the wheel to the energy (or head of water) actually supplied to the turbine Actual work available at the turbine to the energy imparted to the wheel None of these Power produced by the turbine to the energy actually supplied by the turbine Work-done on the wheel to the energy (or head of water) actually supplied to the turbine Actual work available at the turbine to the energy imparted to the wheel None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice. Equal to One-fourth One-half One-third Equal to One-fourth One-half One-third ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The point at which the resultant pressure on an immersed surface acts, is known as Centre of pressure Centre of immersed surface Centre of depth Centre of gravity Centre of pressure Centre of immersed surface Centre of depth Centre of gravity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Stream lines and path lines always coincide in case of turbulent flow uniform flow laminar flow steady flow turbulent flow uniform flow laminar flow steady flow ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to fan laws, at constant pressure, the speed capacity and power vary Inversely as square root of density As square of density Directly as the air or gas density Inversely as density Inversely as square root of density As square of density Directly as the air or gas density Inversely as density ANSWER DOWNLOAD EXAMIANS APP
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