Fluid Mechanics - Study Mode
[#156] The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by
Correct Answer
(A) $${{ ext{C}}_{ ext{v}}} cdot sqrt {2{ ext{gH}}} $$
[#157] If 'x' is the depth of flow in an open channel of large width, then the hydraulic radius is equal to
Correct Answer
(A) x
[#158] In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes
Correct Answer
(C) Less than liquid vapor pressure
[#159] A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a __________ pump.
Correct Answer
(C) Vacuum
[#160] Check valve is used for __________ flow.
Correct Answer
(B) Unidirectional