The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta)

Related MCQs

• In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
• In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta.
• In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is 10.3 m of water.
• A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is
• In an internal mouthpiece, the absolute pressure head at vena contracta is
• In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as the of the atmosphere.
• In an external mouthpiece, the absolute pressure head at vena contracta is
• In a short cylindrical external mouthpiece, the vena contracta occurs at a distance
• The velocity of jet of water travelling out of opening in a tank filled with water is proportional to
• In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.