Design of Steel Structures

121. In case of timber structures, the form factor for solid circular cross-section is taken as

1. 1.18
2. 1.414
3. 1.67
4. 1.81

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122. In case of timber structures, the simple bending formula M = fz may be applied for

1. Rectangular beams up to 300 mm depth
2. All rectangular beams
3. Solid circular beams only
4. All square cross-section beams

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123. In double lacing, the thickness t of flat lacing is

1. t < 1/40 th length between inner end rivets
2. t < 1/50 th length between inner end rivets
3. t < 1/60 th length between inner end rivets
4. t < 1/70 th length between inner end rivets

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124. In factory buildings, the horizontal beams spanning between the wall columns supporting a wall covering, are called

1. Stringers
2. Trimmers
3. Girts
4. Lintels

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125. In moment resistant connections, the moment resistance of riveted connection depends upon

1. Shear in rivets
2. Compression in rivets
3. Tension in rivets
4. Strength of rivets in bearing

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126. In plastic analysis, the shape factor for circular sections, is

1. 1.5
2. 1.6
3. 1.697
4. None of these

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127. In rolled steel beams, shear force is mostly resisted by

1. Web only
2. Flanges only
3. Web and flanges together
4. None of these

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128. In the cross-section of a weld, throat is the

1. Minimum dimension
2. Average dimension
3. Maximum dimension
4. None of the above

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129. In the virtual work method, the virtual quantity is

1. Displacement
2. Load
3. Slope
4. Moment

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130. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds

1. 50 t
2. 85 t
3. 200 t
4. 250 t
   Where 't' is thickness of web

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