1. An opening in the side of a tank with the upstream liquid level below the top edge of the opening.
(A) Orifice
(B) Mouth piece
(C) Notch
(D) Weir
2. Bottom edge of a notch is called.
(A) Sill
(B) Head
(C) Nappe
(D) Bed
3. The sheet of liquid flowing over a notch.
(A) Sheet of liquid
(B) Flow of liquid
(C) Nappe
(D) Flow of liquid
4. Best shape of notch
(A) Circular
(B) Rectangular
(C) Trapezoidal
(D) Triangular
5. Purpose of providing a notch is to measure.
(A) Velocity
(B) Sound
(C) Discharge
(D) Bed
6. Discharge measured by a notch is of this type.
(A) Theoretical
(B) Actual
(C) Total
(D) Any one
7. Average value of co-efficient of discharge for a notch is taken as
(A) 0.62
(B) 0.92
(C) 0.58
(D) 0.52
8. A notch that is a combination of rectangular and vee notch.
(A) Better
(B) Stepped
(C) Trapezoidal
(D) Triangular
9. Formula used to determine discharge through a right angled vee-notch.
(A) 1.147 h^(5/2)
(B) √2gh
(C) 1.1417 h^(3/2)
(D) 9.81 h^(3/2)
10. A notch containing more than one rectangular notches.
(A) Stepped
(B) Trapezoidal
(C) Better
(D) Triangular