Hydraulics and Fluid Mechanics in ME A channel is said to be of most economical cross-section, if All of these It gives maximum discharge for a given cross-sectional area and bed slope It has minimum wetted perimeter It involves lesser excavation for the designed amount of discharge All of these It gives maximum discharge for a given cross-sectional area and bed slope It has minimum wetted perimeter It involves lesser excavation for the designed amount of discharge ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is e > d > m d > m > e e > m > d d > e > m e > d > m d > m > e e > m > d d > e > m ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Euler's number is the ratio of __________ force to pressure force. Viscous None of these Gravity Inertia Viscous None of these Gravity Inertia ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For laminar flow in circular pipes, the Darcy’s friction factor f is equal to None of these 16/Re 32/ Re 64/ Re None of these 16/Re 32/ Re 64/ Re ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A structure, whose width is __________ the width of the channel, is called a flumed structure. Equal Less than None of these More than Equal Less than None of these More than ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension) 4σ cosα/wd 4wd/σ cosα wd/4σ cosα σ cosα/4wd 4σ cosα/wd 4wd/σ cosα wd/4σ cosα σ cosα/4wd ANSWER DOWNLOAD EXAMIANS APP
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