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 upper surface of the notch over which water flows is known as a) vein b) nappe c) sill d) none of the above 2 / 50 2. *The rise of the water table, which takes place due to the transformation of the unstable shooting flow (super-critical) to the stable streaming is called a) hydraulic jump b) standing wave c) both (a) and (b) above d) water cushion 3 / 50 3. *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 4 / 50 4. Cavitations in flowing fluid occurs when a) the total energy suddenly increases b) the total energy suddenly decreases c) the total energy is constant d) none of the above 5 / 50 5. A siphon is used a) to connect water reservoirs at different levels intervened by a hill b) to supply water to a town from a higher level to a lower level c) to fill up a tank with water at a higher level from a lower level d) none of the above 6 / 50 6. *The equation of continuity of fluids is applicable only if a) the flow is steady b) the flow is in-compressible c) the flow is one-dimensional d) all of the above 7 / 50 7. *If the velocity, pressure, density, etc., change at a point with respect to time, the flow is called a) uniform b) compressible c) unsteady d) incompressible 8 / 50 8. The depth of flow after the hydraulic jump is a) d2 = d1/2 [√1+8(Fe)1^2 -1] b) d1 = d2/2 [√1+8(Fe)1^2 -1] c) d2 = d1/3 [√1+8(Fe)1^2 -1] d) d2 = d1/2 [√1+2(Fe)1^2 -1] 9 / 50 9. *Losses are more in a) laminar flow b) critical flow c) turbulent flow d) transition flow 10 / 50 10. When the fluid is at rest, the shear stress is a) maximum b) zero c) unpredictable d) none of the above 11 / 50 11. *Bernoulli's theorem deals with the law of conservation of a) energy b) all of the above c) mass d) momentum 12 / 50 12. 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 13 / 50 13. *Barometers 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 14 / 50 14. *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 15 / 50 15. *Surface float is used to measure a) pressure b) difference in pressure c) viscosity of flow d) none of the above 16 / 50 16. *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 17 / 50 17. In an open tube, the free surface of mercury remains a) horizontal b) curved upwards c) curved downwards d) none of the above 18 / 50 18. 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 19 / 50 19. The Manning's formula for flow in an open channel is given by a) v = n R^2/3 S^1/2 b) none of the above c) v = 1/n R^2/3 S^1/2 d) v = 1/n R^1/2 S^2/3 20 / 50 20. The ratio of the mean velocity to the surface velocity in open channels is equal to a) 0.55 b) 0.75 c) 0.88 d) 1.75 21 / 50 21. *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 22 / 50 22. *The imaginary line joining each head of water is called a) hydraulic gradient line b) residual line c) loss of gradient line d) none of the above 23 / 50 23. 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 24 / 50 24. The water immediately downstream of the conduit or weir is called a) head water b) tail water c) main water d) surplus water 25 / 50 25. *The continuity equation deals with the law of conservation of a) mass b) momentum c) energy d) force 26 / 50 26. Velocity of flow may be determined using: a) division of discharge to the area of flow b) product of area and discharge divided by 100 c) product of wetted perimeter and hydraulic radius d) all of the above 27 / 50 27. *Cipolletti weir is a trapezoidal weir having a side slope of a) H:V::1:2 b) H:V::2:1 c) H:V::1:4 d) none of the above 28 / 50 28. Hydrostatic pressure on a dam depends upon its a) length b) depth c) shape d) both (b) and (c) of the above 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. A ideal fluid a) is frictionless and incompressible b) obey Newton's law of viscosity c) is similar to gas d) is very viscous 31 / 50 31. In an open channels the analysis of a sugar is done by using a) continuity equation b) momentum equation c) energy equation d) none of the above 32 / 50 32. Super-critical flow occurs in a) normal slope b) mild slope c) steep slope d) all of the above 33 / 50 33. 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 34 / 50 34. Weber number is the ratio of inertia force to a) surface tension b) gravitational force c) elasticity d) viscosity 35 / 50 35. 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 36 / 50 36. *The orifice used for low discharge is a) rectangular b) circular c) square d) triangular 37 / 50 37. Cavitations is collapsed by a) low pressure b) high pressure c) low velocity d) high velocity 38 / 50 38. The capillary rise or fall of the liquid is given by a) h = σ cos θ / 4ρgd b) h = 4σ cos θ / ρgd c) h = 8σ cos θ / ρgd d) none of the above 39 / 50 39. In the case of leveling by a level pipe, the level is indicated by a) upper face b) middle face c) lower face d) all of the above 40 / 50 40. If the fluid particles move in straight lines and all the lines are parallel to the surface, the flow is called a) steady b) uniform c) compressible d) laminar 41 / 50 41. If the fluid particles move in a zig-zag way, the flow is called a) unsteady b) non-uniform c) turbulent d) incompressible 42 / 50 42. For the flow of liquid from an open-ended tube (nozzle) leading to the formation of a spray of liquid drops, the number generally is a) Euler number b) Froude number c) Weber number d) Reynolds number 43 / 50 43. Mach number is the ratio of inertia force to a) viscosity b) Froude number c) gravitational force d) elasticity 44 / 50 44. The flow in which each liquid particle has a definite path is called a) stream line flow b) uniform flow c) steady flow d) turbulent flow 45 / 50 45. The ratio of the percentage error in the discharge and the percentage error in the measurement of head over a rectangular notch is a) 1/2 b) 2/3 c) 3/2 d) 3/4 46 / 50 46. Mass density of liquid (p) is given by a) p = mass/volume b) p = metric slug/m^2 c) p = kgsec^3/m^4 d) all of the above 47 / 50 47. When the pipes are connected in parallel, the total loss of head a) is equal to the sum of the loss of head in each pipe b) is the same as in each pipe c) is equal to the reciprocal of the sum of the loss of head in each pipe d) none of the above 48 / 50 48. Which of the following has the highest coefficient of discharge: a) sharp-edged orifice b) venturimeter c) cipolleti weir d) borda's mouthpiece running full 49 / 50 49. 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 50 / 50 50. Which of the following is the example of laminar flow? a) underground flow b) flow past tiny bodies c) both of (a) and (b) d) none of the above 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. Send feedback Buy Hydraulics MCQ PDF for Offline Study
