Flow through Notches - Short Questions & Answers

Q.1: Define the term of notch. Ans: A notch may be define as an opening in one side of a tank or a reservoir. Q.2: Write down the name of types of notches. Ans: (1) rectangular notch (2) Triangular notch (3) Trapezoidal notch (4) Stepped notch Q.3: Write down the advantages of triangular notch over a rectangular notch. Ans: (1) A triangular notch gives more accurate result for low discharges than a rectangular notch. (2) The same triangular notch can measure a wide range of flow accurately. Q.4: Define the trapezoidal notch. Ans: A trapezoidal notch is a combination of a rectangular notch and two triangular notches. The discharges over the such sum, of the rectangular and triangular notches. Q.5: Define stepped notch. Ans: A stepped notch is a combination of rectangular notches. The discharge over such a notch will be the sum of the discharges over the different rectangular notches.