4C DOO 8:59 WTE1501 Malor Test 1 Question 1 1.1 Choose if the following statements are True or False 1. Orifices are pie

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4c Doo 8 59 Wte1501 Malor Test 1 Question 1 1 1 Choose If The Following Statements Are True Or False 1 Orifices Are Pie 1 (66.08 KiB) Viewed 24 times

4C DOO 8:59 WTE1501 Malor Test 1 Question 1 1.1 Choose if the following statements are True or False 1. Orifices are piece of pipes of a length that is 4 times the diameter that are fitted in a fluid container to measure flow rate. a . (1) 2. Co-efficient of discharge is always higher when compared to that of co-efficient of velocity (1) (1) 3. Triangular weir is mostly referred to as Cipolletti. (1) 4. Velocity of approach is used to determine additional head in weirs and not in notches. (1) 5. An ogee is a type of notch. (1) 6. You can empty the dam using either rectangular notch or triangular, the time would still be the same (1) 7. In hydrostatics, the centre of pressure is a product of second moment of area S and the first moment of area. 8. In continuity equation, Qircoming = Qinom ng x Cross sectional area. (1) 9. Meta center simply means, the point about which a body starts oscillating when the body is tilted by a small angle. 1.2 Match the formula equation in column A with the correct principle in column B (5) Column A Column B Formulalequation Principle 01-02 a. % error 1. 0 b. Total head 2 P11 . pg' Za + 2-P2 + 12 + z = h, + +zi + pg29 + 22 h Total energy c. Small orifice 3. Q = x Caxbx/2g x 1/2 - 1/2) х X 32 d. Real fluids 4 = P ++ 2 ng 29 5. Q. = Cd xax 2gh e. Large orifice = [14 Marks) 1 WTE1501 Major Test 1 >> Question 2 Differentiate between notches and weirs with respect to the following aspects: 0) Where they are placed constructed (2) (ii) Material they are made from (2) (iii) Their sizes (2) (iv) Three examples of each, based on the shape of the opening cachx6 =3) [9 Marks) Question 3 2 of 3 To solve Question 3.1 and 3.2, use your student number's first and second digits to replace the value of X and Y as explained below. . X = 1* digit of your student number 1 Y = 2nd Hirit of your student number