the pressure below the nappe is atmospheric

the pressure below the nappe is negative

the pressure above the nappe is atmospheric

the pressure above the nappe is negative

directly proportional

inversely proportional

no change

none of these

Correct

InCorrect

w₁a₁ = w₂a₂

w₁v₁ = w₂v₂

a₁v₁ = a₂v₂

a₁/v₁ = a₂/v₂

actual velocity of jet at vena contracta to the theoretical velocity

area of jet at vena contracta to the area of orifice

loss of head in the orifice to the head of water available at the exit of the orifice

actual discharge through an orifice to the dieoretical discharge