Home» Online Test » Civil Engineering » Hydraulics Online Test » Paper 1 » Paper 2 » Paper 3 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This is a FREE online test. Beware of scammers who ask for money to attend this test. Get New Questions in Each Attempt Total Questions: 50 Time Allotted: 50 minutes Passing Score: 70% Randomization: Yes Certificate: Yes Do not refresh the page! 👍 All the best! 1 / 50 1. The discharge through a V-notch weir is directly proportional to: a) the bed slope of the channel upstream b) the depth of flow c) the top width of the notch d) the angle of the notch and the depth of the flow 2 / 50 2. In an inclined pipe, the pressure difference at its two ends is due to a) sudden head drop at the inlet b) exit head drop c) frictional loss head d) all of the above 3 / 50 3. *The difference between the total energy gradient line and the total energy line is a) kinetic head b) pressure head c) datum head d) loss of head 4 / 50 4. The section of the Jet leaving an orifice, having the minimum cross-section area, is called a) orifice meter b) venturimeter c) mouthpiece d) vena contracta 5 / 50 5. The profile of rising water on the upstream side of the dam is called a) back water curve b) forwater curve c) normal water curve d) all of the above 6 / 50 6. *The discharge through a trapezoidal channel is maximum when a) half of the width = sloping side b) top width = 1/2 sloping side c) top width = 1.5 sloping side d) none of the above 7 / 50 7. Liquids or fluids a) have no shape b) cannot be compressed c) both (a) and (b) of above d) none of the above 8 / 50 8. Specific weight of sea water is more than that of pure water because of a) dissolved air b) dissolved salts c) suspended matter d) all of the above 9 / 50 9. If the pressure is applied to the surface of a liquid, the liquid transmits the pressure equally in all directions is given by a) Pascal b) Newton c) Archimedes d) all of the above 10 / 50 10. The attraction among different particles of the same material is a) adhesion b) cohesion c) corrosion d) fusion 11 / 50 11. The difference in pressure head measured by a mercury-oil differential manometer for a 20 cm difference of mercury level will be (specific gravity of oil-0.8) a) 2.72m of oil b) 2.52m of oil c) 3.20m of oil d) 0.2m of oil 12 / 50 12. *If fluid or flow parameters at any given instant remain the same at every point in space, it is called: a) steady flow b) laminar flow c) uniform flow d) rotational flow 13 / 50 13. In fluids, steady flow occurs when a) the condition of flow change steadily with time b) the condition of flow do not change with time c) the condition of flow remains the same at adjacent points d) the velocity vector remains constant at a point 14 / 50 14. A vessel having a depth of 30 cm is filled with water up to a depth of 10 cm from the top level. Find the pressure exerted at a depth of 5 cm and 15 cm from the top of the vessel respectively a) 0, 50 kg/m^2 b) 0, 150 kg/m^2 c) 0, 100 kg/m^2 d) 50 kg/m^2, 50 kg/m^2 15 / 50 15. *An independent mass of a fluid does not possess a) elevation energy b) kinetic energy c) pressure energy d) none of the above 16 / 50 16. *In flow, the liquid particles may possess a) potential energy b) kinetic energy c) pressure energy d) all of the above 17 / 50 17. *Viscosity of a liquid a) drops with temperature b) rises with temperature c) does not vary with temperature d) remains constant up to a certain temperature 18 / 50 18. *Pressure head is given by a) P/w b) z c) v/2g d) all 19 / 50 19. *The most economical section of a circular channel for the maximum velocity is when a) depth of water = 0.810 diameter b) hydraulic mean depth = 0.304 diameter of the circular section c) wetted perimeter = 2.245 diameters of the circular section d) all of the above 20 / 50 20. If the Froude number in open channel flow is equal to 1.0, the flow is called a) critical flow b) streaming flow c) shooting flow d) none of the above 21 / 50 21. Crest of a weir is lower than d/s water level a) submerged weir b) Cipolletti weir c) triangular weir d) sharp-crested weir 22 / 50 22. The term z is known as a) potential energy b) pressure energy c) potential energy per unit weight d) none of the above 23 / 50 23. *Bernoulli's equation is applied to a) venturimeter b) orifice meter c) pitot tube d) all of the above 24 / 50 24. Total head of a particle in motion is the sum of a) potential head and kinetic head b) kinetic head and pressure head c) potential head and pressure head d) potential head, kinetic head, and pressure head 25 / 50 25. A fluid particle may possess the displacement of a) translation b) rotation c) distortion d) all of the above 26 / 50 26. *The hydraulic ram is a pump that works on a) the principle of water hammer b) the principle of centrifugal action c) the principle of reciprocation action d) all of the above 27 / 50 27. *Piezometers are used to measure a) pressure in water channels, pipes, etc. b) difference in pressure at two points c) atmospheric pressure d) very low pressure 28 / 50 28. *Differential manometers are used to measure a) pressure in water channels b) difference in pressure at two points c) atmospheric pressure d) very low pressure 29 / 50 29. Liquids a) cannot be compressed b) do not occupy definite shape c) are not affected by change in pressure and temperature d) none of the above 30 / 50 30. *The notch angle for the maximum discharge over a triangular notch is a) 30° b) 60° c) 90° d) 120° 31 / 50 31. *The discharge passing through the crest having a length of 1.25m, a height of the flow of water 0.25m, and Cd = 0.035 is a) 0.0116 cm³/sec b) 0.116 cm³/sec c) 0.0160 cm³/sec d) 0.00116 cm³/sec 32 / 50 32. *Bernoulli's theorem deals with the law of conservation of a) energy b) all of the above c) mass d) momentum 33 / 50 33. *The condition for the maximum velocity and discharge is given by (closed flow) a) 0.81D & 0.95D b) 0.82D & 0.94D c) 0.83D & 0.93D d) 0.84D & 0.92D 34 / 50 34. If the fluid particles move in a zig-zag way, the flow is called a) unsteady b) non-uniform c) turbulent d) incompressible 35 / 50 35. For the same specific force, the two depths at which the same discharge occurs are called a) alternate depths b) conjugate depths c) critical depths d) normal depths 36 / 50 36. *The magnitude of water hammer depends upon a) the length of the pipeline b) elastic properties of liquid c) elastic properties of the pipe material d) diameter of the pipeline 37 / 50 37. The water immediately downstream of the conduit or weir is called a) head water b) tail water c) main water d) surplus water 38 / 50 38. Pick up the correct statement from the following a) total energy gradient is the graphical representation of the total head at any section of a pipeline b) vertical distance between the total energy line and hydraulic grade line is equal to the velocity head c) vertical distance between the total energy line and total energy gradient represents the loss of head d) all of the above 39 / 50 39. *Chazy's formula is given by a) v = C√mi b) v = m√ci c) v = C√mci d) v = i√mc 40 / 50 40. The upward water pressure at the base of the structure is called a) up b) down c) uplist d) downlift 41 / 50 41. *The term v^2/2g is known as a) kinetic energy b) pressure energy c) kinetic energy per unit weight d) none of the above 42 / 50 42. Rotation is defined as the movement of a fluid element in such a way that both of its axes rotate in... a) the same direction b) different directions c) both of the above d) none of the above 43 / 50 43. The imaginary line drawn such that the tangents at its all points indicate the direction of the velocity of the fluid particle at each point is called a) path line b) stream line c) potential line d) streak line 44 / 50 44. *Manometers are used to measure a) pressure in water channels, pipes, etc. b) difference in pressure at two points c) atmospheric pressure d) very low pressure 45 / 50 45. *The atmospheric pressure varies with a) altitude b) temperature c) weather conditions d) none of the above 46 / 50 46. *The hydraulic radius is equal to a) area divided by the square of the wetted perimeter b) wetted area divided by the wetted perimeter c) the wetted perimeter divided by the area d) the square root of the area 47 / 50 47. Discharge over an ogee weir remains the same as that of a) sharp-crested weir b) triangular weir c) Cipolleti weir d) drowned weir 48 / 50 48. *To measure atmospheric pressure, we use a) barometers b) piezometer c) manometers d) differential manometers 49 / 50 49. In an inclined position, a venturimeter records a) less reading b) same reading c) more reading d) none of the above 50 / 50 50. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a triangular notch is a) 2/3 b) 3/2 c) 2/5 d) 5/2 Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. 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