44 Hydraulics McQ Chapter Wise Online Test of 25 Question #3 Hydraulics McQ Chapter Wise McQ online Test of 25 Question for PSC, NEC, UPSC, SSC and Many more. 1 / 25 1. The stress-strain relation of the newtoneon fluid is A. linear B. parabolic C. hyperbolic D. inverse type 2 / 25 2. Which of the following is Newtonian fluid? A. water B. oil C. greese D. all of above 3 / 25 3. The differential equation for pressure variation in a static fluid may be written (z, measured vertically upward) A. dp=-w dz B. dp= r dz C. dp= w dz D. dp=-z dr 4 / 25 4. The pressure intensity in kg/cm² at any point in a liquid is A. W B. Wh C. W/h D. h/W 5 / 25 5. Pressure at a point at a static mass of liquid depends upon A. the shape and size of bounding container B. the depth below the free liquid surface C. the specific weight of liquid and depth below the free liquid surface D. the specific weight of liquid, depth below the free liquid surface and the shape and size of the bounding container. 6 / 25 6. As a bubble comes from the bottom of a lake to the top, its radius A. Increases B. Decreases C. Does not change D. Becomes zero 7 / 25 7. Pressure at a point inside a liquid does not depend on A. The depth of the point below the surface of the liquid B. The nature of the liquid C. The acceleration due to gravity at that point D. The shape of the containing vessel 8 / 25 8. The hydrostatic force exerted by 2m deep water on the gate downstream is equal to A. 40KN B. 10KN C. 20KN D. 30KN 9 / 25 9. The pressures in meters of oil (sp. gr. 0.8), equivalent to 80 m of water is A. 64 B. 80 C. 100 D. 88 10 / 25 10. A cubical tank is filled with water. If side of tank is 1 m pressure on the base of the tank will be A. 10000 kg B. 5000 kg C. 1000 kg D. 4000 kg 11 / 25 11. A pressure head of 100 m of water is equal to the pressure head of 123.46m of kerosene. The specific gravity of the kerosene is A. 0.79 B. 0.81 C. 0.90 D. 0.75 12 / 25 12. Hydrostatic pressure on dam depends on A. length B. depth C. shape D. both B and C Hint: Here, shape of dam means, either the surface of dam is plane or curved and pressure is asked on whole dam surface, not at a point. 13 / 25 13. The point at which the resultant pressure on an immersed surface acts is known as A. Centre of gravity B. Centre of depth C. Centre of pressure D. Centre of immersed surface 14 / 25 14. The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as A. center of gravity B. center of buoyancy C. center of pressure D. metacentre 15 / 25 15. The centre of pressure for a plane surface immersed vertically in a static mass of liquid is A. always below the centroid of the area B. always above the centroid of the area C. always coincident with the centroid of the area D. sometimes above and sometimes below the centroid of the area. 16 / 25 16. The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is A. at the centroid of the submerged area B. always above the centroid of the area C. always below the centroid of the area D. none of the above 17 / 25 17. A vertical wall is subjected with a liquid pressure on its side, the total pressure on the wall acts at a distance of …………… from the liquid surface. A. H/3 B. H/2 C. 2H/3 D. 3H/4 18 / 25 18. If H is the depth of water retained by a vertical wall, the height of centre of pressure above the bottom is A. H/5 B. H/2 C. H/3 D. 2H/3 19 / 25 19. Total pressure on a plane surface inclined at an angle 𝜃 with the horizontal is equal to A. PA B. 𝑃𝐴² 𝑠𝑖𝑛 θ C. 𝑃𝐴/ 2 𝑐𝑜𝑠 θ D. 𝑃𝐴 𝑡𝑎𝑛 θ 20 / 25 20. On an inclined plane, centre of pressure is located A. at the centroid B. above the centroid C. below the centroid D. anywhere 21 / 25 21. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if A. area is horizontal B. area is vertical C. area is inclined D. all the above 22 / 25 22. The horizontal component of the force on a curved surface is equal to A. weight of liquid vertically below the curved surface B. force on a vertical projection of the curved surface C. product of pressure at its centroid and the area D. weight of liquid retained by the curved area 23 / 25 23. The vertical component of pressure force on a submerged curved surface is equal to A. its horizontal component B. the force on a horizontal projection of the curved surface C. the weight of liquid vertically above the curved surface D. the product of pressure at centroid and surface area. 24 / 25 24. Vertical component of the force on a curved surface is equal to A. weight of liquid vertically below the curved surface B. force on a vertical projection of the curved surface C. product of pressure at its centroid and the area D. weight of liquid retained by the curved area 25 / 25 25. Pascal’s law is about A. surface area and volume of liquid B. the partial loss of weight of submerged bodies C. the pressure of a liquid in all directions D. the relative loss of weight of full immersed bodies Your score is The average score is 33% 0% Restart quiz Exit civil engineerhydraulics mcqmcqcivilmock testnecpscupsc
