design of steel structures MCQs – Page 4

Practise focused design of steel structures questions with marked answers for exam preparation and subject revision.

design of steel structures Mcqs
61. The slenderness ratio of a column supported throughout its length by a masonry wall is________________?
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A. zero

B. 10

C. infinity

D. 100

62. If the floor is supported at or near the bottom but top chords of a bridge are not braced, then the bridge is called________________?
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A. double deck type

B. through type

C. half through type

D. deck type

63. The heaviest I-section for same depth is_________________?
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A. ISHB

B. ISLB

C. ISWB

D. ISMB

64. The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as________________?
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A. 1.5 L

B. 1.1 L

C. L

D. 1.8 L

65. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is__________________?
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A. 1.0 mm

B. 2.5 mm

C. 2.0 mm

D. 1.5 mm
66. Gantry girders are designed to resist_________________?
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A. longitudinal loads and vertical loads

B. lateral and longitudinal loads

C. lateral loads

D. lateral, longitudinal and vertical loads
67. For a standard 45 fillet, the ratio of size of fillet to throat thickness is_______________?
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A. 1:01

B. 1 : V2

C. 2:01

D. V2 : 1
68. The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is________________?
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A. 350

B. 250

C. 150

D. 180

69. A butt weld is specified by__________________?
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A. effective throat thickness

B. size of weld

C. plate thickness

D. penetration thickness

70. The maximum permissible span of asbestos cement sheets is______________________?
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A. 810 mm

B. 650 mm

C. 1680 mm

D. 1250 mm

71. The external wind pressure acting on a roof depends on__________________?
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A. degree of permeability of roof

B. slope of roof

C. both (A) and (B)

D. none of the above

72. Economical depth of a plate girder corresponds to_________________?
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A. minimum thickness of web

B. minimum depth

C. maximum weight

D. minimum weight
73. Formation of snow occurs if the cloud temperature is________________?
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A. None of these

B. Below the freezing point

C. At the freezing point

D. Just above the freezing point

74. The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be___________________?
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A. 8 mm

B. 10 mm

C. 6 mm

D. 4.5 mm

75. The web crippling due to excessive bearing stress can be avoided by_________________?
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A. providing suitable stiffeners

B. increasing the length of the bearing plates

C. none of the above

D. increasing the web thickness

76. In case of timber structures, the form factor for solid circular cross-section is taken as_________________?
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A. 1.414

B. 1.67

C. 1.81

D. 1.18
77. For the buildings having a low permeability, the internal wind pressure acting normal to the wall and roof surfaces is taken as__________________?
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A. 0.2p

B. 0.5 p

C. 0.7p

D. re p is basic wind pressure

E. zero

78. Horizontal stiffener in a plate girder is provided to safeguard against_______________?
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A. shear buckling of web plate

B. yielding

C. compression buckling of web plate

D. all of the above

79. If the loaded length of span in meters of a railway steel bridge carrying a single track is 6 m, then impact factor is taken as_________________?
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A. 1

B. between 0.5 and 1.0

C. 0.5

D. 0

80. compression force in two end posts The pin of a rocker bearing in a bridge is designed for_________________?
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A. bearing, shear and bending

B. bending and shear

C. bearing and shear

D. bearing and bending