Design of Reinforced Cement Concrete Elements | Set 1
1. Steel is mainly an alloy of
Correct : A. iron and carbon
2. Which of the following is a disadvantage of Steel?
Correct : C. fire and corrosion resistance
3. Elastic Modulus of Steel is
Correct : B. 2.0 x 105 n/mm2
4. Poisson’s ratio of steel is
Correct : C. 0.3
5. Structural Steel normally has carbon content less than
Correct : B. 0.6%
6. What happens when Manganese is added to steel?
Correct : D. improves strength and hardness of steel
7. Phosphorous in Steel ?
Correct : B. affects weldability
8. Which of the following is added to steel to increase resistance to corrosion?
Correct : D. copper
9. (i) tensile strength and yield property (ii) Ductility (iii) Welding (iv) Corrosion resistance
Correct : C. i, ii, iii
10. Chrome and Nickel are added to Steel to improve
Correct : A. corrosion resistance and high temperature resistance
11. What does R.C.C. stand for?
Correct : A. reinforced cement concrete
12. The maximum area of tension reinforcement in beams shall not exceed
Correct : B. 4%
13. Thickened part of a flat slab over its supporting column, is technically known as
Correct : A. drop panel
14. The minimum cube strength of concrete used for a prestressed member, is
Correct : C. 350 kg/cm2
15. d) 12 mm
Correct : C. risers minus one
16. For initial estimate for a beam design, the width is assumed
Correct : D. 1/30th of span
17. A foundation rests on
Correct : D. base of the foundation, subgrade and foundation soil
18. Which of the following is correct criteria to be considered while designing?
Correct : D. structure should be adequately safe, should have adequate serviceability
19. What is serviceability?
Correct : C. it means that the structure should perform satisfactorily under different loads, without discomfort to user
20. Analysis is referred to
Correct : B. determination of axial forces, bending moment, shear force etc.
21. The structure is statically indeterminate when
Correct : A. static equilibrium equations are insufficient for determining internal forces and reactions on that structure
22. Which of the following is one of the methods of analysis prescribed in the code for steel structures?
Correct : D. dynamic analysis
23. Which method is mainly adopted for design of steel structures as per IS code?
Correct : A. limit state method
24. Which IS code is used for general construction of steel?
Correct : C. is 800
25. Which of the following relation is correct?
Correct : B. permissible stress = yield stress / factor of safety
26. In Working Stress Method, which of the following relation is correct?
Correct : A. working stress ≤ permissible stress
27. (i) tension members, (ii) long column, (iii) short column, (iv) connections
Correct : C. i = iii < ii < iv
28. What is Load Factor?
Correct : D. ratio of ultimate load to working load
29. Which of the following is not a main element of framed structure?
Correct : C. shear connector
30. Which of the following are subjected to both axial loads and bending moments?
Correct : A. beam-column
31. How much percentage increase of permissible stress is allowed when dead load, live load and wind load are considered together in working stress method?
Correct : B. 33%
32. Limit State Method is based on
Correct : C. calculations at working loads and ultimate loads
33. What is limit state?
Correct : A. acceptable limits for safety and serviceability requirements before failure occurs
34. Which of the following format is used in limit state method?
Correct : B. multiple safety factor
35. Which of the following factors is included in the limit state of strength?
Correct : B. failure by excessive deformation
36. What is permanent action according to classification of actions by IS code?
Correct : A. due to self weight
37. What is variable action according to classification of actions by IS code?
Correct : C. due to construction and service stage loads
38. Which of the following criteria is to be satisfied in selection of member in limit state method?
Correct : B. factored load ≤ factored strength
39. The partial factor of safety for resistance governed by yielding is :
Correct : A. 1.10
40. The partial factor of safety for resistance governed by ultimate strength is :
Correct : D. 1.25
41. In the case of composite sections, the percentage of tensioned reinforcement is less than?
Correct : A. simple beams
42. If the compression zone contains part of precast element, the computation is done by considering?
Correct : B. cross section
43. The effective bonding between the two parts of composite beams is developed by
Correct : B. roughening
44. The design of shear connections depends upon the strength of
Correct : B. in situ cast concrete
45. When ties are not provided the permissible values of the horizontal shear stress is?
Correct : A. 0.6n/mm2
46. The ties consisting of single bars and multiple leg stirrups should have a spacing not exceeding
Correct : A. 600mm
47. If the surface is rough tamped and without links to withstand a horizontal shear stress of 0.6n/mm2 and assuming the moduli of elasticity of precast and insitu cast concrete to be equal the centroid of the composite section is located 110mm from the top of the slab, second moment area of composite section is 2487×105mm4, calculate ultimate shearing resistance?
Correct : B. 12
48. Design ultimate horizontal shear stress with nominal links and the contact surface are as cast (assume τ = 1.2n/mm2)?
Correct : D. 24kn
49. Which type of cables are advantages in reducing the effective shear?
Correct : B. curved
50. Which type of shear reinforcement should be provided for members with thin webs?
Correct : C. nominal shear reinforcement
51. The various codes recommend empirical relations to estimate
Correct : A. ultimate shear resistance
52. Explanation: The various codes recommend empirical relations to estimate the ultimate shear resistance of the section by considering the flexure shear and web shear cracking
Correct : A. steel and concrete
53. In case of pre tensioned member, the computations of transmission length are influenced by?
Correct : A. bond
54. When prestress is transferred to concrete by means of external anchorages which pressure is developed?
Correct : A. bearing
55. The bearing pressure on the concrete is given as
Correct : B. 0.8fci
56. The effective punching area Apun is generally the contact area of
Correct : B. anchorage device
57. The end block of a beam has a rectangular section 100mm wide by 200mm deep, the force of cable is 200kn. Find the actual bearing pressure?
Correct : C. 20n/mm2
58. The end block of a prestressed concrete beam has a rectangular section; a cable carrying a force of 200kn is to be anchored against the end block at the centre if the cube strength of concrete at transfer is 30n/mm2. Design the maximum permissible bearing pressure?(Abr = 10000mm2)
Correct : A. 24n/mm2
59. The prestressed concrete slab systems are ideally suited for
Correct : B. slabs
60. The precast prestressed hollow core slabs, with or without topping is an important structural element in
Correct : B. industries
61.
Correct : A. floor panels
62. One way slabs may be supported across the entire width of the slab by means of
Correct : B. piers
63. The simple or continuous slabs are analyzed for
Correct : C. design moments
64. The design of a two-way-slab supported on all four sides involves the computation of
Correct : C. bending moment
65. A simple prestressed flat slab is generally supported by a network of
Correct : B. columns
66. The proportioning of tendons in design of prestressed concrete simple flat slab between the column and middle strips may be based on
Correct : B. codes
67. The design principles of continuous flat slab floors are similar to
Correct : B. two way slab
68. The vertical portion between each tread on the stair is called:
Correct : D. riser
69. The figure below represents a:
Correct : A. dog-legged stairs
70. member supporting
Correct : C. vertical, handrail
71. How many types of stairs are there based on the material?
Correct : B. 5
72. The space housing the stairs is called:
Correct : A. staircase
73. Which IS code gives details about wooden stairs?
Correct : C. is 1634
74. stairs are a variation of L shaped stairs.
Correct : A. winder
75. The decorative cap to the top of a newel post is called:
Correct : A. finial
76. How many types of stone stairs are used?
Correct : B. 5
77. After how many stairs is a landing provided in public, residential places?
Correct : C. 12
78. Eccentrically loaded columns have to be designed for combined axial and
Correct : B. bending moments
79. What is the minimum value of eccentricity provided in columns?
Correct : C. 30 mm
80. The minimum diameter provided for the longitudinal bars is
Correct : C. 12 mm
81. What is the minimum number of longitudinal bars provided in the rectangular column?
Correct : A. 4
82. Which of the following reservoirs is also known as
Correct : A. ground service reservoirs
83. The ends of shall be properly anchored.
Correct : B. transverse reinforcement
84. For longitudinal reinforcing bar, the nominal cover should not be less than
Correct : C. 40 mm
85. In system, air relief valves are not required.
Correct : C. continuous
86. Which of the following is one of the layouts of distribution systems?
Correct : C. grid iron system
87. Which of the following system is also known as an interlaced system?
Correct : B. grid iron system
88. Which of the following is also known as a ring system?
Correct : A. circle
89. Varignon’s theorem is called as
Correct : B. principle of moments
90. Foundations can be broadly classified under
Correct : A. shallow foundation and deep foundation
91. which of the following, is a type of shallow footing?
Correct : A. spread footing
92. Which of the below is the most commonly used shallow foundation?
Correct : B. spread footing
93. The pressure intensity beneath the footing depends upon
Correct : D. all of the mentioned
94. footing can be calculated.
Correct : A. bending moment and shear force
95. In conventional design, allowable bearing capacity should be taken smaller than which of the following value?
Correct : A. safe bearing capacity and allowable bearing pressure
96. In cohesive soil, the pressure distribution beneath the footing is
Correct : A. linear
97. When do strap footings are used in foundation?
Correct : B. distance between the columns are long
98. When two column loads are unequal, which of the possible footing can be provided?
Correct : C. trapezoidal combined footing
99. The formula d=a×√(3q)/m is used to calculate
Correct : C. depth of concrete bed block
100. If the wall or column under construction is near some other property, it will not be possible to spread the footing to both the sides of War or column. In search case which footing is used?