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 fresh, new questions in each attempt. Total Questions: 30 Time Allotted: 30 minutes Passing Score: 50% Randomization: Yes Certificate: No Do not refresh the page! 👍 All the best! 1 / 30 1. *Bernoulli's theorem deals with the law of conservation of a) energy b) all of the above c) mass d) momentum 2 / 30 2. *If the volume of liquid weighing 3000 kg is 4 cubic meters, then the specific gravity is a) 750 kg/m^3 b) 12000 kg/m^3 c) 1.33 d) 0.75 3 / 30 3. The viscosity of liquids varies with temperature a) directly proportional b) inversely proportional c) constant d) none of the above 4 / 30 4. The term z is known as a) potential energy b) pressure energy c) potential energy per unit weight d) none of the above 5 / 30 5. *An orifice is called a large orifice if the water head is a) two times the diameter of the pipe b) three times the diameter of the pipe c) four times the diameter of the pipe d) five times the diameter of the pipe 6 / 30 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 / 30 7. A triangular notch is preferred to a rectangular notch because a) only one reading is required b) its formula is simple to remember c) it gives more accurate results for low discharge (Q≤100m^3/sec) d) it measures a wide range of flows accurately 8 / 30 8. Falling drops of water become spheres due to a) adhesion b) cohesion c) surface tension d) viscosity 9 / 30 9. *A pitot tube is used to measure a) pressure b) different in pressure c) velocity of flow d) none of the above 10 / 30 10. A fluid particle may possess the displacement of a) translation b) rotation c) distortion d) all of the above 11 / 30 11. 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 12 / 30 12. *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 13 / 30 13. To avoid an interruption in the flow of a siphon, the air vessel is provided a) at the inlet b) at the outlet c) at the summit d) at the point between the inlet and outlet 14 / 30 14. An intensifier is used to increase a) pressure b) temperature c) energy d) none of the above 15 / 30 15. *1 m head is equivalent to a) 0.1 kg/cm^2 b) 0.2 kg/cm^2 c) 0.3 kg/cm^2 d) 0.4 kg/cm^2 16 / 30 16. *Hydraulic gradient line (H.G.L.) represents the sum of a) pressure head and kinetic head b) kinetic head and datum head c) pressure head, kinetic head, and datum head d) pressure head and datum head 17 / 30 17. *The upper surface of the weir over which water flows is known as a) crest b) notch c) top level d) none of the above 18 / 30 18. *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 19 / 30 19. In the case of a broad-crested weir, the depth of water h at the end of the still is given by a) h = H/2 b) h = 2H/3 c) h = 3H/4 d) h = H 20 / 30 20. *The actual velocity through an orifice is........... than the theoretical velocity. a) more b) less c) equal d) not defined 21 / 30 21. *Back water curve is caused if there is a a) friction head loss is more than the bed slope b) obstruction due to weir in the channel c) there is an increase in width of the channel d) none of the above 22 / 30 22. 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 23 / 30 23. 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 24 / 30 24. *Molecules of fluids get attracted due to a) capillary action b) surface tension c) adhesion d) cohesion 25 / 30 25. *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 26 / 30 26. 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 27 / 30 27. *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 28 / 30 28. *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 29 / 30 29. 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 30 / 30 30. *Water cushion is used to a) sit in the house b) destroy the energy c) produce energy 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! 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