Hydraulics and Fluid Mechanics in ME A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest. Less than Equal to More than None of these Less than Equal to More than 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 When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is ω².r²/4g ω².r²/2g ω.r/2g ω.r/4g ω².r²/4g ω².r²/2g ω.r/2g ω.r/4g ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be 1/8 to 1/4 1/4 to 1/3 1/3 to 1/2 1/16 to 1/8 1/8 to 1/4 1/4 to 1/3 1/3 to 1/2 1/16 to 1/8 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number) 4/RN 16/RN 64/RN 1/RN 4/RN 16/RN 64/RN 1/RN ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar) 0.20 cm 0.10 cm 0.05 cm 0.40 cm 0.20 cm 0.10 cm 0.05 cm 0.40 cm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS