Civil Engineering Mock test – 3 (100 Questions)

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Pick up the incorrect statement from the following:
The equation τ = C + σ tan φ is given by
3. If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle θ with horizontal, the hydraulic mean depth is
4. Pantagraph is used for
5. The number of points of contraflexure in a simple supported beam carrying uniformly distributed load, is
6. Surface water is obtained from
7. In levelling operation
8. While determining the yield of open wells by the pumping test
9. The condition not applicable to water cement ratio law, is
10. In rigid module, the discharge
11. Disinfection of water with ozone is not good because
12. The level of the fioor of a syphon aqueduct can be obtained
13. True meridian of different places
14. Water cement ratio is
15. Mathamoglobinemia, or blue baby disease is caused due to
16. The momentum correction factor (β) for the viscous flow through a circular pipe is
17. The maximum vacuum created at the summit of a syphon is
For shear strength, triaxial shear test is suitable because
19. If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by
Good quality cement contains higher percentage of
You are given a sample of soil containing coarse grains to determine its water content, you will use
The yield strength and tensile strength of low carbon steel may be improved by the addition of
23. Most economical section of a circular channel for maximum discharge
Number of piles required to support a column, is
25. The law which states, "within elastic limits strain produced is proportional to the stress producing it", is known as
26. The uplift pressure on the roof of an inverted syphon, is maximum when
27. In a three hinged arch, the shear force is usually
The tendency of a stone is, to split along:
29. Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be
30. Minimum permissible speed on high speed roads, is decided on the basis of
31. The shear stress distribution in viscous fluid through a circular pipe is :
32. Slump test of concrete is a measure of its
Acrylic is the name of
34. In a simply supported slab the minimum spacing of distribution reinforcement, should be four times the effective thickness of the slab or
35. The phenomenon of slow extension of materials having constant load, i.e. increasing with the time is 
36. A land is said to be water-logged if its soil pores within
37. Two hill tops A and B 20 km apart are intervened by a third top C. If the top most contour of the three hill tops are of the same value, state whether the line of sight AB
The soil which contains finest grain particles, is
39. A cantilever beam rectangular in cross-section is subjected to an isolated load at its free end. If the width of the beam is doubled, the deflection of the free end will be changed in the ratio of
40. The angle between two plane mirrors of optical square, is
41. The live load to be considered for an inaccessible roof, is
42. The side slope of Cipolletti weir is generally kept
43. The thickness of a sharp crested weir is kept less than
44. Unit of kinematic viscosity is
45. An ideal transition curve is
46. If the engineer-in-charge approves, the 10 cm cubes may be used for the work test of concrete provided maximum nominal size of aggregate, does not exceed
47. For setting out a simple curve, using two theodolites.
48. The radius of a bar bend to form a hook, should not be less than
49. The maximum bending moment due to a moving load on a simply supported beam, occurs
50. Total pressure on the vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of
51. The maximum resistance against rotation, is offered by the weld at a point
52. Increase in population of a rapidly growing city, may be estimated by
53. A syphon is used
54. Percussion drilling is unsuitable in
55. If x% is the gradient of an alignment and y% is the gradient after proper superelevation along a curved portion of a highway, the differential grade along the curve, is
56. A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
57. The ratio of the head recovered to the head put in, is known as
58. If a three hinged parabolic arch carries a uniformly distributed load on its entire span, every section of the arch resists.
59. Efflorescence in cement is caused due to an excess of
60. Cross regulators in main canals are provided
The direct shear test suffers from the following disadvantage:
62. Normal values of overflow rate for plain sedimentation tank, is
63. An arch may be subjected to
64. If the angular measurements of a traverse are more precise than its linear measurements, balancing of the traverse, is done by
65. The desirable camber for straight cement concrete roads, is
The soil moisture driven off by heat, is called
67. For structural analysis of forces, the method refers to
Spirit varnish generally consists of
69. A pitot tube is used to measure
70. The weight of a foundation is assumed as
71. In an ideal transition curve, the radius of curvature
72. Pick up the incorrect statement from the following:
73. According to IRC : 52-1973, for a single lane National Highway in hilly region,
74. Flow through period, in sedimentation tanks, is
75. The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be
Steel contains carbon approximately
77. The ideal shape of a transition curve, is
78. The standard B.O.D. at 20&Deg;C, is taken for the consumption in
79. The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as
80. The ratio of maximum velocity to average velocity of viscous fluid through a circular pipe is
81. The maximum shear stress (qmax) in a rectangular beam is
82. For stairs spanning horizontally, the minimum waist provided is
83. The ratio of the rate of change of discharge of an outlet and parent channel, is known as
84. On concrete roads, the camber generally provided, is
Cast iron contains carbon approximately
86. The diameter of the Vicat plunger is 10 mm and its length varies from
87. If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of a concrete mixer of 150 litre capacity, is
88. The water face of the guide banks, is protected by
Plastic asphalt is
90. If water table is comparatively high, the irrigation canal becomes useless, due to
91. An earth formation which, although porous and capable of absoring water does not provide an appreciable supply to wells, is known as
The compression index of a soil
93. If the ratio of the span to the overall depth does not exceed 10, the stiffness of the beam will ordinarily be satisfactory in case of a
94. While calculating the sight distances, the driver's eye above road surface, is assumed
If σ0' and σ' represent initial and increased pressure ; e0 and e void ratios corresponding to initial and increased pressure ; and C0 the compression index (dimensionless), then, the virgin compression curve as expressed by Terzaghi empirical formula is
Lime mortar is generally made with
97. The latitude of a traverse leg is obtained by multiplying its length by
98. Saw dust can be rendered chemically inert by boiling it in water containing
For obtaining vinyl chloride acetate, the method used, is
100. Reinforcement in cement concrete slab of road pavements, is placed

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