Question
9n geseral, pipes have shorser design period wwr) tn the pumps (a) True Anicdhesetic icrease meshod in suitable to estimane population of a new industrial towns in the beginning of development for caly few decades. (a). True (b). Falso 11 Head loss in loop system i when peak hourly discharge is flowing compared bo peak daily discharge (a) lesser (c). same (b) higher g can be any of (a, (b,& (e) 12 Which of the following information is incorrect? (a). Majority of culvert types has submerged outlet There are six types of eulvert t (a) and (b) (d). None of above 13 Distribuation of tractive foerce or shear stress over channel perimeter is not uniform (b). False a True 14 Erodible channels are designed for (c). Super-critical flow (a) Turbulent dow b).Reymold's Number -2000 1S Theoretically the most efficient shape of opetr chaninels a). Triangular (b). Trapezoidal (c) Rectangular -circuar (e). none of all 16 Hic.sppropriate equations for analysis of a hydraulic jump are based on underlying concepts of energy principles (b) momentum principles (c) friction loss principles (d) continuity principles (e (a), (b) and (d) 17 Which of the following statement about pumps is false? operate under maximum efficiency over a very broad range of discharges. (b) The shut-off head is the beight water can be raised but produce no flow. (c) Pump discharge increases with decreasing pump head. (d) Two identical pumps in series will double the pumped head. (e) Pump selection involves superimposing a system curve on a pump characteristie curve
Explanation / Answer
9. False
10. False, it is suitable for large and established cities.
11. Higher, because if flow is high then losses also high
12. A (majority of culverts are not submreged one)
13. True
14.reynolds number is less then 2000
15. Semi circular channel
16. Energy principles
17. A
7. When two pumps are in parallel they increase flow rate
