Quiznetik

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?

Correct : B. eccentric footing