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 water immediately downstream of the conduit or weir is called a) head water b) tail water c) main water d) surplus water 2 / 50 2. The error 1% in measuring H will produce a a) 1% b) 1.5% c) 2% d) 2.5% 3 / 50 3. *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 4 / 50 4. *Stoke is the unit of a) surface tension b) viscosity c) kinematic viscosity d) none of the above 5 / 50 5. Practical fluids possess a) viscosity b) surface tension c) compressibility d) all of the above 6 / 50 6. If the density of a fluid changes from point to point in a flow region, it is called a) steady flow b) unsteady flow c) non-uniform flow d) compressible flow 7 / 50 7. *Orifice-meter is used to measure: a) pressure at the point b) discharge c) average speed d) velocity 8 / 50 8. *The magnitude of capillary rise is more in: a) silts b) sands c) clays d) gravels 9 / 50 9. 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 10 / 50 10. The numerical value of vorticity is.....of the rotation a) twice b) thrice c) same d) all of the above 11 / 50 11. In a venturimeter, the divergent cone is kept a) shorter than the convergent cone b) longer than the convergent cone c) equal to the convergent cone d) none of the above 12 / 50 12. The total energy of a liquid in motion is equal to: a) pressure energy + kinetic energy + potential energy b) pressure energy - (kinetic energy + potential energy) c) potential energy - (pressure energy + kinetic energy) d) kinetic energy - (pressure energy + potential energy) 13 / 50 13. 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 14 / 50 14. If the fluid particles move in a zig-zag way, the flow is called a) unsteady b) non-uniform c) turbulent d) incompressible 15 / 50 15. *Variation in volume of liquid with variation in pressure is called a) plasticity b) viscosity c) compressibility d) none of the above 16 / 50 16. 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 17 / 50 17. Specific weight of liquid a) remains constant at every place b) does not remain constant at every place c) varies from place to place d) does not vary on any other planet except earth 18 / 50 18. The viscosity of gases varies with temperature a) directly proportional b) inversely proportional c) constant d) none of the above 19 / 50 19. 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 20 / 50 20. Water belongs to a) compressible fluids b) none of the above c) Newtonian fluids d) non-Newtonian fluids 21 / 50 21. In an inclined position, a venturimeter records a) less reading b) same reading c) more reading d) none of the above 22 / 50 22. From a nozzle exposed to the atmosphere, the liquid jet traverses a) a straight line b) a circular path c) a parabolic path d) an elliptical path 23 / 50 23. *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 24 / 50 24. *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 25 / 50 25. 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 26 / 50 26. *Pressure within a soap bubble is a) equal to vapor pressure b) less than external pressure c) more than external pressure d) equal to external pressure 27 / 50 27. When the fluid is at rest, the shear stress is a) maximum b) zero c) unpredictable d) none of the above 28 / 50 28. *The discharge through a rectangular channel is maximum when a) m = d/2 b) d=b/2 c) m=2d d) both (a) and (b) above 29 / 50 29. *A stepped notch is a combination of a) rectangular notches of different sizes b) triangular notches of different sizes c) rectangular and triangular notches d) all of the above 30 / 50 30. If the Froude number in open channel flow is more than 1.0, the flow is called a) critical flow b) streaming flow c) shooting flow d) none of the above 31 / 50 31. *To measure very low pressure, we use: a) barometers b) piezometers c) monometers d) differential manometers 32 / 50 32. Chazy's formula is used to determine a) head loss due to friction in pipes b) velocity of flow in pipe c) velocity of flow in channels d) none of the above 33 / 50 33. The upward water pressure at the base of the structure is called a) up b) down c) uplist d) downlift 34 / 50 34. *The wetted perimeter of a channel is given by a) 4.75Q^2 b) 4.75Q c) 4.75√Q d) none of the above 35 / 50 35. For a circular channel, the wetted perimeter is given by (where θ=half the angle subtended by the water at the center and R= radius of circular channel) a) 2Rθ b) 3Rθ c) 4Rθ d) all of the above 36 / 50 36. *The rate of flow through a venturimeter varies as a) H^1/2 b) H^3/2 c) H^4/2 d) H^5/2 37 / 50 37. Total pressure on the top of a closed cylindrical vessel completely filled with liquid is directly proportional to a) radius b) (radius)^2 c) (radius)^3 d) (radius)^4 38 / 50 38. Hydrostatic pressure on a dam depends upon its a) length b) depth c) shape d) both (b) and (c) of the above 39 / 50 39. 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 40 / 50 40. If H is the height of the liquid above the sill, the effect of end contraction on each side, according to Francis' formula, is a) 0.1H b) 0.2H c) 0.3H d) 0.4H 41 / 50 41. One horsepower is equal to a) 1 kW b) 0.746 kW c) 0.836 kW d) 0.756 kW 42 / 50 42. *The flow in which the path of individual particles of liquid cross each other is called a) uniform flow b) turbulent flow c) stream line flow d) none of the above 43 / 50 43. In the case of vortex flow, the level of water at the center is a) higher than circumference b) lower than circumference c) same as circumference d) all of the above 44 / 50 44. *Pascal's law states that pressure at a point is equal in all directions a) in a liquid at rest b) in a fluid at rest c) in a laminar flow d) in a turbulent flow 45 / 50 45. *The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid if a) the area is horizontal b) the area is vertical c) the area is inclined d) all of the above 46 / 50 46. For a long pipe, the head loss a) at the entrance is ignored b) at the outlet is ignored c) at the entrance and outlet both are ignored d) due to friction is ignored 47 / 50 47. *The phenomenon occurring in an open channel when a rapidly flowing stream abruptly changes to a slowly flowing stream, causing a distinct rise of the liquid surface, is a) water hammer b) hydraulic jump c) critical discharge d) all of the above 48 / 50 48. *Pressure head is given by a) P/w b) z c) v/2g d) all 49 / 50 49. 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 50 / 50 50. A rise or fall of liquid in a glass tube of a very small diameter when dipped is a) directly proportional to the force per unit length of periphery b) directly proportional to the sine of the angle of contact c) directly proportional to the specific weight of the liquid d) inversely proportional to the diameter of the glass tube 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 Share the above MCQs:Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on X (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)
