246 Sub-Engineer Mock Test of 50 Past Question #93 Sub-Engineer Collection of 50 Past Question from Loksewa Aayog Mock Test. 1 / 50 1. The radius of curvature of the arc of the bubble tube is generally kept A. 10 m B. 25 m C. 50 m D. 100 m 2 / 50 2. While measuring with a metallic tape of 30m length pull should be applied A. 1 kg B. 2 kg C. 3 kg D. 4 kg 3 / 50 3. ABCD is a regular parallelogram plot of land whose angle BAD is 60° If the bearing of the line AB is 30° the bearing of CD, is A. 90° B. 120° C. 210° D. 270° 4 / 50 4. Chemically, marble is known as A. metamorphic rock B. argillaceous rock C. calcareous rock D. silicious rock 5 / 50 5. The commonly used colour pigment in paints,is A. carbon black B. iron oxide C. lamp black D. all of the above 6 / 50 6. If P is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is A. 0.75 P B. 0.80 P C. 0.85 P D. 0.90 P 7 / 50 7. The commonly used drying oil for oil paints, is A. olive oil B. linseed oil C. kerosine oil D. accetate of lead 8 / 50 8. For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is A. 0.404 B. 0.505 C. 0.606 D. 0.707 9 / 50 9. In a square beam loaded longitudinally, shear develops A. on lower fibre along horizontal plane B. on top fibre along vertical plane C. equally on each fibre along horizontal plane D. none of these 10 / 50 10. A fluid particle may possess the displacement of A. translation B. rotation C. distortion D. all the above 11 / 50 11. In flowing liquids pitot tubes are used measure A. discharge B. pressure C. velocity D. depth 12 / 50 12. Piezometers are used to measure A. pressure in water channels, pipes etc B. difference in pressure at two points C. atmospheric pressure D. very low pressure 13 / 50 13. The ratio of inertia force of a flowing fluid and the viscous force of the liquid is called: A. Renold's nümber B. Froude's number C. Euler's number D. Weber's number 14 / 50 14. The method of the slices is applicable to A. homogenous soils B. stratified soils C. saturated soils D. non-uniform slopes 15 / 50 15. A pycnometer is used to determine A. voids ratio B. dry density C. water content D. density index 16 / 50 16. For slopes of limited extent slippage, is usually along the surface of A. a parabolic arc B. an elliptical arc C. a straight line D. a circular arc 17 / 50 17. Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than A. one diameter of thicker bar B. sum of the diameters of thinner and thicker bars C. twice the diameter of thinner bar D. none of these 18 / 50 18. The steel generally used in R.C.C. work, is A. stainless B. mildsteel C. high carbon steel D. high tension steel 19 / 50 19. A pre-stressed concrete member A. is made of concrete B. is made of reinforced concrete C. is stressed after casting D. possesses internal stresses 20 / 50 20. Pick up the true statement from the following: A. In the absence of beams, it is easier to install piping B. In the absence of beams, it is easier to paint C. A flat slab is capable to withstand concentrated loads D. All of the above 21 / 50 21. The alignment of a cross joint along the plumb line is A. bed block B. perpend C. lintel D. vertical line 22 / 50 22. The pile which is provided with a bulb filled with concrete at its lower end, is known as A. Mac-Arthur pile B. Raymond pile C. Franki pile D. none of these 23 / 50 23. If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm, the particular aggregate will be flaky if its minimum dimension is less than A. 30.5 mm B. 40.5 mm C. 50.5 mm D. none of these 24 / 50 24. For given water content, workability decreases if the concrete aggregates contain an excess of A. flat particles B. elongated particles C. flaky paticles D. all of the above 25 / 50 25. Percussion drilling is unsuitable in A. unconsolidated sand B. unconsolidated gravel C. quick sand D. consolidated rocks 26 / 50 26. Rapid gravity filters can remove bacterial impurities up to a maximum of A. 60% B. 70% C. 80% D. 90% 27 / 50 27. A drop manhole is provided if A. a sewer drops from a height B. a branch sewer joins the main sewer at higher level C. a lamp is inserted to check obstruction D. none of these 28 / 50 28. To maintain aerobic biological activity, the moisture content of the compost mass should A. 45% B. 50% C. 55% D. 60% 29 / 50 29. The sinuosity of a meander is the ratio of A. meander length and the width of meander B. meander length and half width of the river C. curved length and the straight distance D. all of the above 30 / 50 30. A deficit of sediments in flowing water may cause a river A. meandering type B. aggrading type C. degrading type D. sub-critical type 31 / 50 31. 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. super passage D. syphon-aqueduct 32 / 50 32. In a barrage, the crest level is kept A. low with large gates B. high with large gates C. high with no gates D. low with no gates 33 / 50 33. Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm² at 28 days, are A. 6.5 B. 7.0 C. 7.5 D. 8.0 34 / 50 34. The radius of curvature provided along a transition curve, is A. minimum at the beginning B. same throughout its length C. equal to the radius of circular curve D. varying from infinity to the radius of circular curve 35 / 50 35. At a road junction, 7 cross conflict points are severe if A. both are one-way roads B. both are two-way roads C. one is two-way road and other is one-way road D. none of these 36 / 50 36. Horizontal curves on highways are provided A. to break the monotony of driving B. to discourage the tendency to increase speed C. to decrease the mental strain on drivers D. all of the above 37 / 50 37. The minimum width of a septic tank is taken A. 70 cm B. 75 cm C. 80 cm D. 90 cm 38 / 50 38. Due to change in price level, a revised estimate Is prepared if the sanctioned estimate exceeds A. 2.0% B. 2.5% C. 4.0% D. 5.0% 39 / 50 39. For 12 mm thick cement plastering 1: 6 on 100 sq.m new brick work, the quantity of cement required, is A. 0.2m³ B. 0.247m³ C. 0.274m³ D. 0.295m³ 40 / 50 40. Conical surface of the approach area rises outwards A. 1 in 10 B. 1 in 15 C. 1 in 20 D. 1 in 25 41 / 50 41. The height of the pilot’s eye above the runway surface is assumed in A. 1 m B. 3 m C. 4 m D. 5 m 42 / 50 42. If D is the duration, ES and EF are the earliest start and finish, LS and LF are latest start and latest finish time, then the following relation holds good A. LF = LS + D B. LS = LF – D C. D = EF – ES D. all the above 43 / 50 43. The critical activity has A. maximum float B. minimum float C. zero float D. none of these 44 / 50 44. If t is the duration of an activity, t1 is the latest finish possible moment of its preceding activity and t2 is the earliest start possible moment, the independent float of the activity is A. (t1-t2)-t B. t-(t1-t2) C. (t1+t2)-t D. t+(t1-t2) 45 / 50 45. In a tree, the cambium layer is situated between : A. the outer bark and inner bark B. the inner bark and sap wood C. the sap wood and heart wood D. the pith and heart wood 46 / 50 46. The compacting factor test of cement concrete determines its A. strength B. porosity C. degree of compaction under loads D. workability 47 / 50 47. Self-purification of running streams may be due to A. sedimentation, oxidation and coagulation B. dilution, sedimentation and oxidation C. dilution, sedimentation and coagulation D. dilution, oxidation and coagulation 48 / 50 48. The phenomenon of decreased resistance of a material due to reversal of stress is called A. resilience B. elasticity C. creep D. fatigue 49 / 50 49. The moment of inertia of a given rectangular area is minimum about A. its longer centroidal axis B. its polar axis C. its axis along the diagonal D. its shorter centroidal axis 50 / 50 50. Shear strength of timber depends on which one of the following ? A. Lignin with fibres B. Medullary rays C. Heartwood D. Sapwood Your score is The average score is 47% 0% Restart quiz Exit civil engineerloksewamcqcivilmock testpscsub engineer mock test