Hydraulics And Fluid Mechanics In Me - Study Mode
[#506] When the coefficient of discharge (C d ) is 0.623, then the general equation for discharge over a rectangular weir is
Correct Answer
(A) $$1.84left( {{ ext{L}} - 0.1{ ext{nH}}}
ight){{ ext{H}}^{frac{3}{2}}}$$
[#507] The length AB of a pipe ABC in which the liquid is flowing has diameter (d 1 ) and is suddenly contracted to diameter (d 2 ) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is
Correct Answer
(D) $$frac{{0.375{ ext{v}}_2^2}}{{2{ ext{g}}}}$$
[#508] To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than
Correct Answer
(B) 6.4 m above the hydraulic gradient
[#509] If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
Correct Answer
(B) Stable equilibrium
[#510] When a body is placed over a liquid, it will float if
Correct Answer
(B) Gravitational force is less than the up-thrust of the liquid