design of steel structures MCQs – Page 5

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

design of steel structures Mcqs

81. Lug angles_________________?
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A. are used to reduce the length of connection.

B. all the above

C. increases shear lag.

D. are unequal angles.

82. Battening is preferable when the________________?
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A. space between the two main components is not very large

B. ) column is eccentrically loaded </strong>

C. correct answer is

D. column carries axial load only

83. The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of___________________?
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A. 75 t2/h

B. 175 t2/h

C. 125 t2/h

D. 125 t3/h2

84. Lacing bars in a steel column should be designed to resist_________________?
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A. bending moment due to 2.5% of the column load

B. shear force due to 2.5% of the column load

C. 2.5% of the column load

D. both (A) and (B)

85. Minimum spacing of vertical stiffeners is limited to________________?
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A. 2d/3

B. d/3

C. d/2

D. d/4

86. The live load for a sloping roof with slope 15, where access is not provided to roof, is taken as_______________?
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A. 0.75 kN/m2

B. 1.35 kN/m2

C. 0.65 kN/m2

D. 1.50 kN/m2

87. As per IS : 875, for the purposes of specifying basic wind velocity, the country has been divided into_____________________?
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A. 7 zones

B. 5 zones

C. 4 zones

D. 6 zones

88. The overlap of batten plates with the main members in welded connections should be more than____________________?
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A. 6t

B. 8t

C. 4t

D. 3t

E. re t = thickness of the batten plate

89. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds___________________?
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A. 2501

B. 200 t

C. 501

D. 851

90. In the virtual work method, the virtual quantity is_________________?
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A. load

B. displacement

C. slope

D. moment

91. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of___________________?
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A. 1.83 m above the rail level

B. 1.23 m above the rail level

C. 2.13 m above the rail level

D. 1.50 m above the rail level

92. To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be_______________?
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A. 3

B. 2

C. 4

D. 1

93. Load factor is____________________?
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A. always equal to factor of safety

B. always less than factor of safety

C. always greater than factor of safety

D. sometimes greater than factor of safety

94. The maximum spacing of vertical stiffeners is_________________?
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A. 1.5 d

B. 1.33 d

C. 1.75 d

D. 1.25 d

95. The forces acting on the web splice of a plate girder are__________________?
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A. shear and bending forces

B. shear and axial forces

C. axial forces

D. axial and bending forces

96. The moment-curvature relation at a plastic hinge is________________?
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A. linear

B. parabolic

C. constant moment for all curvatures

D. constant curvature for all moments

97. The basic wind speed is specified at a height h above mean ground level in an open terrain. The value ofh is__________________?
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A. 50 m

B. 25 m

C. 10 m

D. 20 m

98. The shape factor of an isosceles triangle for bending about the axis parallel to the base is________________?
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A. 1.5

B. 1.7

C. 2.34

D. 2

99. Steel tanks are mainly designed for_______________________?
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A. earthquake forces

B. wind pressure

C. weight of tank

D. water pressure

100. For rivets in tension with counter-sunk heads, the tensile value shall be____________________?
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A. reduced by 33.3%

B. reduced by 25 %

C. increased by 33.3 %

D. increased by 25 %

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