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Civil Engineering Objective Questions { Steel Structure Design }

106.  In rolled steel beams, shear force is mostly resisted by
A. web only
B. flanges only
C. web and flanges together
D. none of these.

107.  For a rectangular section, the ratio of the maximum and average shear stresses, is

108.  The permissible stress in bending for rolled steel 1-beams and channels, is
A. 1500 kg/cm2
B. 1575 kg/cm2
C. 945 kg/cm2
D. 1650 kg/cm2

109.  The average shear stress for rolled steel beam section, is
A. 845 kg/cm2
B. 945 kg/cm2
C. 1025 kg/cm2
D. 1500 kg/cm2

110.  The deflection of beams may be decreased by
A. increasing the depth of beam
B. increasing the span
C. decreasing the depth of beam
D. increasing the width of beam

111.  For simply supported beams, the maximum permitted deflection, is
A. 1/325 of the span
B. 1/350 of the span
C. 1/375 of the span
D. 1/400 of the span

112.  A simply supported beam carrying a central load, will be safe in deflection if the ratio of its span to depth, is
A. < 19
B. < 24
C. >19
D. >24

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