141 Sub-Engineer Mock Test of 50 Past Question #80 Sub-Engineer Collection of 50 Past Question from Loksewa Aayog Mock Test. 1 / 50 1. Accuracy of ‘fix’ by two point problem, is A. bad B. good C. not reliable D. unique 2 / 50 2. A bearing of a line is also known as A. magnetic bearing B. true bearing C. azimuth D. reduced bearing 3 / 50 3. True meridians are generally preferred to magnetic meridians because A. these converge to a point B. these change due to change in time C. these remain constant D. None of these 4 / 50 4. Pick up the correct statement from the following A. the apparent error on reversal is twice the actual error B. the correction may be made equal to half the observed discrepancy C. the good results may be obtained from a defective instrument by reversing and taking the mean of two erroneous results D. all of the above 5 / 50 5. Which one of the following is acid resistant asbestos: A. actinolite asbestos B. amosite asbestos C. anthophylite asbestos D. all of the above 6 / 50 6. Due to attack of dry rot, the timber A. cracks B. shrinks C. reduces to powder D. none of these 7 / 50 7. Brittleness of cold is due to an excess of A. sulphur B. carbon C. phosphorus D. silicon 8 / 50 8. For the manufacture of Portland cement, the proportions of raw materials used, are A. lime 63%; silica 22%; other ingredients 15% B. lime 22%; silica 63% ;other ingredients 15% C. silica 40%; lime 40%; other ingredients 20% D. silica 70%; lime 20% ;other ingredients 10% 9 / 50 9. A beam is said to be of uniform strength, if A. B.M. is same throughout the beam B. deflection is same throughout the beam C. bending stress is same throughout the beam D. none of these 10 / 50 10. Rate of change of angular momentum is equal to A. force B. torque C. linear momentum D. impulse 11 / 50 11. The radius of gyration of a rectangular section is not proportional to A. square root of the moment of inertia B. square root of the inverse of the area C. square root of the moment of inertia divided by area of the section D. none of these 12 / 50 12. A reinforced concrete beam is assumed to be made of A. homogeneous material B. heterogeneous material C. isotropic material D. none of these 13 / 50 13. An ideal flow of a liquid obeys A. Continuity equation B. Newton's law of viscosity C. Newton's second law of motion D. dynamic viscosity law 14 / 50 14. Euler’s equation for motion of liquids, is given by A. dp/ρ – gdz + vdv = 0 B. dp /ρ + gdz – vdv = 0 C. dp /ρ + gdz + vdv = 0 D. ρdp+gdz + vdv = 0 15 / 50 15. Reynold number is the ratio of initial force and A. viscosity B. elasticity C. gravitational force D. surface tension 16 / 50 16. When a body is totally or partially immersed in a fluid, it is buoyed up by a force equal to A. weight of the body B. weight of the fluid displaced by the body C. weight of the body and fluid displaced by the body D. difference of weights of the fluid displaced and that of the body 17 / 50 17. Stoke’s law sates that the velocity at which a grain settles out of suspension, the other factors remaining constant, is dependent upon A. shape of grain B. weight of grain C. size of grain D. all of the above 18 / 50 18. The minimum depth of foundation in clayey soils is A. 0.5 m B. 0.7 m C. 0.9 m D. 1.2 m 19 / 50 19. Voids ratio of a soil mass can A. never be greater than unity B. be zero C. take any value greater than zero D. take values between 0 and 1 only 20 / 50 20. If S, L and R are the arc length, long chord and radius of the sliding circle then the perpendicular distance of the line of the resultant cohesive force, is given by A. a = SR / L B. a = S / LR C. a = S / L D. none of these 21 / 50 21. The outstand of stiffeners should be (where t is the thickness of flat). A. 6t B. 8t C. 10t D. 12t 22 / 50 22. For the plain reinforcing bars in compression,the permissible design bond stress in tension,is increased by A. 10% B. 15% C. 20% D. 25% 23 / 50 23. The maximum compressive strength on 15 cm cubes of M20 grade concrete at 7 days, should be a minimum of A. 7N/mm² B. 10N/mm² C. 70N/mm² D. 100N/mm² 24 / 50 24. The cover to the main reinforced may be reduced up to one third of the specified cover but not less than A. 5 mm B. 15 mm C. 7 mm D. 10 mm 25 / 50 25. Le Chatelier’s device is used for determining the A. setting time of cement B. soundness of cement C. tensile strength of cement D. compressive strength of cement 26 / 50 26. The entrained concrete is used in lining walls and roofs for making A. heat insulated B. sound insulated C. neither (a) nor (b) D. both (a) and (b) 27 / 50 27. M10 grade of concrete approximates A. 1:3:6 mix B. 1:1:2 mix C. 1:2:4 mix D. 1:1.5:3 mix 28 / 50 28. For given water content, workability decreases if the concrete aggregates contain an excess of A. thin particles B. flat particles C. elongated particles D. all of the above 29 / 50 29. Water supply system includes A. digging a well for water B. construction of dams C. construction of canals D. entire arrangement from source to distribution. 30 / 50 30. Corrosion of a pipe A. reduces its life span B. reduces its carrying capacity C. adds colour to water D. all of the above 31 / 50 31. If the over land flow from the critical point to the drain is 8 km and the difference in level is 12.4 m, the inlet time is A. 2 hours B. 3 hours C. 4 hours D. 5 hours 32 / 50 32. An inverted siphon is designed generally for A. 1 pipe B. 2 pipe C. 3 pipe D. 4 pipe 33 / 50 33. The main function of a diversion head works of a canal from a river, is A. to remove silt B. to control floods C. to store water D. all the above 34 / 50 34. Side slopes generally kept for canals in loam soil, are A. 1:1 in cutting and 1 1/2: 1 in filling B. 1 1/2:1 in cutting and 2: 1 in filling C. Neither (a) nor (b) D. Both (a) and (b) 35 / 50 35. When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the underside of the supporting structure, the structure so provided, is called A. syphon B. aqueduct C. syphon-aqueduct D. super passage 36 / 50 36. The major resisting force in a gravity dam is A. water pressure B. wave pressure C. self-weight of dam D. uplift pressure 37 / 50 37. The weight of vehicles affects A. pavement thickness B. ruling gradient C. limiting gradient D. all of the above 38 / 50 38. Pick up the correct following statement from the A. During reconnaissance, the general route of the alignment is selected B. After reconnaissance, a trace is cut for the alignment C. Last stage is the detailed surveys for desired geometries'of the highway D. All of the above 39 / 50 39. Deviation of the alignment of a trace cut may be permitted in areas involving A. land slides B. sand dunes C. dens D. none of these 40 / 50 40. If cross slope of a country is 10% to 25%, the terrain is classified as A. rolling B. mountainous C. steep D. plain 41 / 50 41. The most reliable estimate is A. Detailed estimate B. Preliminary estimate C. Plinth area estimate D. Cube rate estimate 42 / 50 42. The expected out turn of 12 mm plastering with cement mortar is A. 2.5 sq m B. 4.0 sq m C. 6.0 sq m D. 8.0 sq m 43 / 50 43. The main factor to be considered while preparing a detailed estimate, is A. Quantity of the materials B. Availability of materials C. Transportation of materials D. All of the above 44 / 50 44. The damp proof course (D.P.C.) is measured in A. Cu.m B. Sq m C. Metres D. none of these 45 / 50 45. CPM is A. synthesising in concepts B. is built of activities oriented programme C. is based on time estimate D. all of the above 46 / 50 46. Critical path lies along the activities having total float A. positive B. negative C. zero D. same 47 / 50 47. Construction team means A. an engineer B. an architect C. a contractor D. all of the above 48 / 50 48. The maximum design gradient for vertical profile of a road is A. ruling gradient B. limiting gradient C. exceptional gradient D. minimum gradient 49 / 50 49. Grader is used mainly for A. trimming and finishing B. shaping and trimming C. finishing and shaping D. finishing, shaping and trimming 50 / 50 50. The type of pile which is driven at an inclination to resist inclined forces is known as A. friction pile B. sheet pile C. batter pile D. anchor pile Your score is The average score is 58% 0% Restart quiz Exit civil engineerloksewamcqcivilpscsub engineersub engineer mock test
