101 Sub-Engineer Mock Test of 50 Past Question #77 Sub-Engineer Collection of 50 Past Question from Loksewa Aayog Mock Test. 1 / 50 1. The accuracy of measurement in chain surveying, does not depend upon A. length of the offset B. scale of the plotting C. importance of the features D. general layout of the chain lines 2 / 50 2. Closed contours of decreasing values towards their center represent: A. a hill B. a depression C. a saddle or pass D. a river bed 3 / 50 3. If a 30 m chain diverges through a perpendicular distance d from alignment, the error in length, is its correct A. d²/60 m B. d²/6 m C. d²/600 m D. d²/66 m 4 / 50 4. Diopter is the power of a lens having a focal length of A. 25 cm B. 50 cm C. 75 cm D. 100 cm 5 / 50 5. The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout A. the monsoon B. the winter C. the summer D. none of these 6 / 50 6. The rocks which are formed due to cooling of magma at a considerable depth from earth’s surface are called A. Plutonic rocks B. Hypabyssal rocks C. Volcanic rocks D. Igneous rocks 7 / 50 7. Quartzite is a A. ambers B. carbon black C. iron oxide D. all of the above 8 / 50 8. The variety of pig iron used for manufacture of wrought iron, is A. Bessemer pig B. Grey or foundry pig C. White forge pig D. Mottled pig 9 / 50 9. The ratio of the moment of inertia of a circular plate and that of a square plate for equal depth, is A. less than one B. less than one C. more than one D. equal to 3π/16 10 / 50 10. If the width of a simply supported beam carrying an isolated load at its center is doubled the deflection of the beam at the center is changed by: A. 1/2 B. 1/8 C. 1/4 D. 1/6 11 / 50 11. For a simply supported beam of length L, the bending moment M is described as M=a(x-x³/L²), 0 ≤ x A. the supports B. x = L/2 C. x = L/3 D. x = L/4 12 / 50 12. The deflection of any rectangular beam simply supported, is A. directly proportional to its weight B. inversely proportional to its width C. inversely proportional to the cube of its depth D. directly proportional to the cube of its length 13 / 50 13. The moment of inertia of a floating body along its longitudinal axis and the volume of water displaced by it are I and V respectively. The height of the meta centre above centre of buoyancy of the body, is A. I/2V B. 2I/V C. I/V D. 3I/V 14 / 50 14. Critical depth (h) of a channel, is A. h=v²/g B. h=v²/2g C. h = v/2g D. h=2v²/g 15 / 50 15. The ratio of maximum velocity to average velocity of viscous fluid through a circular pipe is A. 1.0 B. 2.0 C. 3.0 D. 4.0 16 / 50 16. The shear stress distribution in viscous fluid through a circular pipe is A. maximum at the centre B. maximum at the inside of surface C. same throughout the section D. none of the above. 17 / 50 17. Under-reamed piles are generally A. driven piles B. bored piles C. precast piles D. all the above 18 / 50 18. Pick up the clay soil group which does not swell when wet from the following: A. Kaolinite group B. Illite group C. Vermiculite group D. Montrorillonite group 19 / 50 19. Factor of safety against sliding of a slope, is the ratio of A. actual cohesion to that required to maintain stability of slope B. shear strength to shear stress along the surface C. neither (a) nor (b) D. both (a) and (b) 20 / 50 20. The ratio of the volume of voids to the volume of soil solids in a given soil mass, is known A. Porosiy B. specific gravity C. void ratio D. water content 21 / 50 21. If the slenderness ratio of a column is more than 160, the compressive stress obtained by the secant formula is multiplied by a factor (x-1/800r) in which value of x is: A. 0.9 B. 1.2 C. 1.3 D. 1.5 22 / 50 22. The maximum horizontal deflection of a column of actual length L, when subjected to lateral forces, may be upto A. L/125 B. L/250 C. L/325 D. L/400 23 / 50 23. A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is A. 15% B. 5% C. 10% D. 50% 24 / 50 24. Steel bars are generally connected together to get greater length than the standard length by providing A. strainght bar splice B. hooked splice C. dowel splice D. all of the above 25 / 50 25. The raft slab is projected beyond the outer walls of the structure by: A. 35 to 40 cm B. 25 to 10 cm C. 5 to 10 cm D. 30 to 45 cm 26 / 50 26. The process of making the back ground rough, before plastering, is A. dubbing B. hacking C. blistering D. peeling 27 / 50 27. Black cotton soil is unsuitable for foundations because its A. bearing capacity is low B. permeability is uncertain C. particles are cohesive D. property to undergo a volumetric change due to variation of moisture content. 28 / 50 28. The loose pockets in soil mass can be bridged safely by providing a raft foundation provided the soft area is smaller than A. the column spacing B. one-third the column spacing C. half the column spacing D. three-fourth the column spacing 29 / 50 29. Pick up the correct statement from the following: A. Excess quantities of iron and manganese in water, cause discolouration of clothes B. Lead and barium salts have toxic effect C. Arsenic and selenium are poisonous to human health D. all the above 30 / 50 30. Pick up the incorrect statement from the following regarding fire hydrants A. Fire hydrants are fitted in water mains at 100m to 150 m apart at fire B. The minimum water pressure of hydrants, is kept 1.5 kg/cm² C. The water at pressure 1 to 1.5 kg/cm² is made available for 4 to 5 hours for constant use D. None of these. 31 / 50 31. Pick up the correct statement from the following: A. pH value indicates acidity and alkalinity of sewage B. In acidic sewage, the pH value is less than 7 C. In alkaline sewage, the pH value is more D. All of the above. 32 / 50 32. The non-clog pump which permits solid matter to pass out with the liquid sewage, is A. centrifugal pump B. reciprocating pump C. pneumatic ejector D. none of these 33 / 50 33. A water-logged land is found suitable for cultivation due to: A. ease of tillage for preparation of the field for optimum condition of germination B. absence of aeration of soil from root zone of the plant C. regular supply of water to plants from the water table by capillary action D. none of these 34 / 50 34. When a canal and a drainage approach each other at the same level, the structure so provided, is A. an aqueduct B. a syphon C. a level crossing D. inlet and outlet 35 / 50 35. For smooth entry of water in a canal, the angle between head regulator and water is generally kept A. 100° B. 90° C. 110° D. 80° 36 / 50 36. If L is the total length of a canal in Kilometers, P is the total perimeter of its lining in meters and C is the cost of lining per square meter,the additional expenditure involved on lining is,: A. 1000 PLC B. PCL/1000 C. PL/1000C D. PC/100L 37 / 50 37. Traffic surveys are carried out A. to know the type of traffic B. to determine the facilities to traffic regulations C. to design proper drainage system D. all of the above 38 / 50 38. If A is the projected area of a vehicle in squaremetres, V is speed of the vehicles in kilometres per hour and C is a constant, then the wind resistance R to the moving vehicles, is given by A. R = CAV B. R = CAV² C. R = CAV³ D. R = C²AV 39 / 50 39. The usual width of parapet walls along Highways in hilly region, is A. 60 cm B. 50 cm C. 30 cm D. 70 cm 40 / 50 40. The road foundation for modern highways construction, was developed by A. Tresguet B. Telford C. Macadam D. Telford and Macadam simultaneously 41 / 50 41. In long and short wall method of estimation, the length of long wall is the centre to centre distance between the walls and A. breadth of the wall B. half breadth of wall on each side C. one fourth breadth of wall on each side D. none of these 42 / 50 42. The height of the sink of wash basin above floor level is kept A. 60 cm B. 70 cm C. 75 to 80 cm D. 800 cm 43 / 50 43. While preparing a detailed estimate A. Dimension should be measured correct to 0.01 m B. Area should be measured correct to 0.01 sqm C. Volume should be measured correct to 0.01 cum D. all of the above 44 / 50 44. Pick up the incorrect statement regarding a master trap from the following A. It is provided in between the lower end of the house drain and the street sewer B. It is provided a cleaning eye at the top of the trap C. The height of fresh air inlet pipe fixed vertically with wall is 3 m D. The water seal is less than that of ordinary traps. 45 / 50 45. Completion of an activity on CPM network diagram, is generally known A. Event B. Node C. Connector D. all of the above 46 / 50 46. A dummy activity A. is artificially introduced B. is represented by a dotted line C. does not consume time D. all of the above 47 / 50 47. Military organisation is known as A. line organisation B. line and staff organisation C. functional organisation D. none of these 48 / 50 48. Pick up the incorrect statement from the following: A. The activity is the time consuming part of a project B. The beginning and end of a job, are called events C. The activity which consumes maximum time, is called a node D. Logically and sequentially connected activities and events form a network 49 / 50 49. As compared to stretcher course, the thickness of joints in header course should be A. less B. more C. equal D. equal or more 50 / 50 50. The type of roof which slopes in two directions with a break in the slope on each side is known as A. gable roof B. hip roof C. gambrel roof D. mansard roof Your score is The average score is 43% 0% Restart quiz Exit civil engineerloksewamcqcivilmock testsub engineersub engineer mock test
