126 Sub-Engineer Mock Test of 50 Past Question #34 Sub-Engineer Collection of 50 Past Question from Loksewa Aayog Mock Test. 1 / 50 1. The energy possessed by a fluid by virtue of its existing pressure is called: A. elevation energy B. kinetic energy C. potential energy D. all of the above 2 / 50 2. According to Chazy’s formula which one is right? A. V= cmi B. V= √cmi C. V= c√mi D. all of the above 3 / 50 3. T-beam is suitable for: A. > 40m span B. <6m span C. 7.25m span D. >100m span 4 / 50 4. Contour having different elevation may cross: A. overhanging cliff B. vertical cliff C. plane surface D. none of the above 5 / 50 5. At horizontal curve outer surface of road is raised as compared to inner surface which is known as: A. camber B. super elevation C. drainage D. all of the above 6 / 50 6. The maximum diameter of bar in a slab: A. 1/2th of slab thickness B. 1/6th of slab thickness C. 1/7th of slab thickness D. 1/8th of slab thickness 7 / 50 7. Minimum runway length of class A airport: A. 600m B. 1500m C. 2100m D. 3000m 8 / 50 8. Minimum runway length of class E airport: A. 600m B. 1500m C. 2100m D. 3000m 9 / 50 9. Rugosity coefficient for a sit clay: A. 0.0225 B. 0.025 C. 0.0275 D. 0.03 10 / 50 10. Find the representative fraction for a scale 10cm-2km: A. 1/200 B. 1/20000 C. 1/2000000 D. none of the above 11 / 50 11. Back bearing of a line BA is 35 ° and bearing of BC is 125° them find the included angle: A. 35° B. 90° C. 125° D. none of the above 12 / 50 12. The amount of cement required per cubic meter having mix (1:3:6) A. 4.3bag B. 3.3bag C. 6.3bag D. 5.3bag 13 / 50 13. Design of canal system: A. 5(D2-D1) B. 10(D2-D1) C. 20(D2-D1) D. 15(D2-D1) 14 / 50 14. Pothole maintenance in case of bituminous road is: A. routine maintenance B. period maintenance C. recurrent maintenance D. special maintenance 15 / 50 15. The slenderness ratio for masonry walls should not be more than A. 10 B. 20 C. 30 D. 40 16 / 50 16. In case leveling by level pipe, level is indicated by: A. upper face B. middle face C. lower case D. all of the above 17 / 50 17. Weight of steel per cubic meter (m³): A. 1000kg B. 2000kg C. 7850kg D. 8850kg 18 / 50 18. Centre of gravity of semicircular circle is ….. above the base AB(Dia.): A. 2r/π B. 4r/3π C. r/8 D. r/4 19 / 50 19. Suitable stone for gravity retaining wall is: A. light B. heavy C. hard D. soft 20 / 50 20. Pit privy latrine is suitable in: A. urban area B. semi-urban area C. rural area D. all of the above 21 / 50 21. The masonry with stone having chisel-dressed on all beds and joints to be true and square giving perfectly vertical and horizontal joint is called: A. ashlar B. rubble C. square rubble D. random 22 / 50 22. Snowcem paint is a type of: A. cement paint B. aluminum paint C. bronze paint D. nail paint 23 / 50 23. Maximum percentage of………. available in cement: A. silica B. lime C. alumina D. iron oxide 24 / 50 24. Factor of safety is given by: A. ultimate load / working load B. working load / ultimate load C. (W+u)load D. (u-w)load 25 / 50 25. Sheep foot roller is used for: A. compaction B. spreading C. excavation D. sprayer 26 / 50 26. No. of bricks required for one cubic meter masonry wall: A. 360 B. 460 C. 560 D. 660 27 / 50 27. The main element for providing effective drainage in the case of road is: A. super elevation B. camber C. curve D. shoulder 28 / 50 28. RL of BM is 500m. Back sight reading at BM is 2m. Fore sight at station A is 3m. Then RL of station A is? A. 503m B. 502m C. 499m D. 500m 29 / 50 29. The amount of SF at the maximum bending moment: A. minimum B. medium C. maximum D. all of the above 30 / 50 30. The rate of change of shear force is called: A. BM B. point C. intensity of load D. slope 31 / 50 31. Normally detention period for public septic tank is: A. 12Hr B. 24Hr C. 36Hr D. 48Hr 32 / 50 32. Head loss increases with: A. increase in velocity B. decrease in velocity C. increase in diameter D. increase in length of pipe 33 / 50 33. Expansion joint is provided in RCC structure at the spacing of: A. 15m B. 45m C. 60m D. none of the above 34 / 50 34. Earth pressure acting at a height of……. in case of inclined structure: A. h/2 from the base of the wall B. h/3 from the base of the wall C. h/4 from the base of wall D. h/5 from the base of wall 35 / 50 35. The method of damp proofing in which a layer of water repellent substance is provide adjacent to it is known as dampness and part of structure, adjacent to it is known as: A. membrane damp proof B. integral damp proof C. glinting D. none of the above 36 / 50 36. In ordinary residential / public building, the DPC is provided at: A. ground level B. water table level C. plinth level D. none of the above 37 / 50 37. Radius of transition curve at the junction of circular curve is: A. R/2 B. R C. 2R D. 0 38 / 50 38. An aggregate is said to be flaky, if its least dimension is less than A. 2/3 mean dimension B. 3/4 mean dimension C. 3/5 mean dimension D. 4/5 mean dimension 39 / 50 39. The relation between dry density (ρd) bulk density (ρ) and water content (w) is: A. ρ = ρd/1 + w B. ρd=ρ/1+w C. w= ρ/1+ρd D. w= ρd/1+ρ 40 / 50 40. The structure provided where natural drainage and canal meets at same level is: A. aqueduct B. siphon C. super passage D. level crossing 41 / 50 41. In a stone masonry lined canal, the permissible velocity of water is A. 1m/sec B. 2m/sec C. 3m/sec D. 4m/sec 42 / 50 42. Permissible tensile strength of concrete, M150 is: A. 150kg / cm² B. 15kg / cm² C. 150N / mm² D. 15N / mm² 43 / 50 43. Plane table is used without chaining and taping but horizontal distance is measured by: A. compass B. techeometer C. theodolite D. telescopic alidade 44 / 50 44. Theodolite traverse is plotted more accurately by: A. Consecutive ordinate of each section B. Independent coordinates of each section C. Inclined angle & scaling off each traverse leg D. The tangent method is taken only on known 45 / 50 45. Back sight reading is taken only on known: A. point B. elevation C. instrument D. all of the above 46 / 50 46. The void ratio of soil is: A. the ratio of voids to solids in volume B. the ratio of voids to gross volume C. the ratio of solid to voids in volume D. the ratio of solid volume to gross volume 47 / 50 47. The initial setting time of quick setting cement is: A. 5 minute B. 15 minute C. 10 minute D. 30 minute 48 / 50 48. Good quality water is obtained from……. for the supply without treatment: A. impounded reservoir B. river C. deep tube well D. an elevated lake 49 / 50 49. The maximum thickness of door shutters provided in door in: A. 20mm B. 30mm C. 38mm D. 50mm 50 / 50 50. Topographic map is used to represent: A. Artificial details B. Natural details C. Construction details D. 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