Top 350+ Solved Design of Steel Structures MCQ Questions Answer
Q. The method of design of steel framework for greatest rigidity and economy inweight, is known as
a. Simply design
b. Semi-rigid design
c. Fully rigid design
d. None of these
Q. For a cantilever beam of length built-in at the support and restrained against torsion at the free end, the effective projecting length is
a. l = 0.7 L
b. l = 0.75 L
c. l = 0.85 L
d. l = 0.5 L
Q. The least permissible clear dimension of the web of thickness t in the panel of aplate girder, is restricted to
a. 150 t
b. 160 t
c. 170 t
d. 180 t
Q. Bearing stiffeners are provided at(i) The supports(ii) The mid span(iii) The point of application of concentrated loadsThe correct answer is
a. Only (i)
b. Both (i) and (ii)
c. Both (i) and (iii)
d. (i), (ii) and (iii)
Q. Pick up the correct statement from the following:
a. The slenderness ratio of lacing bars for compression members should not exceed145
b. The minimum width of lacing bar connected with rivets of nominal diameter 16 mm, is kept 50 mm
c. The minimum thickness of a flat lacing bar is kept equal to one-fortieth of its length between inner end rivets
d. All the above
Q. If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced not greater than
a. d
b. 1.25 d
c. 1.5 d
d. 1.75 d
Q. If d is the distance between the flange angles of a plate girder, vertical stiffeners are provided at a distance not greater than
a. d but not less than 0.20 d
b. 1.25 d but not less than 0.33 d
c. 1.5 d but not less than 0.33 d
d. 2.0 d but not less than 0.50 d
Q. A second horizontal stiffener is always placed at the neutral axis of the girder ifthe thickness of the web is less than
a. d/250 for structural steel
b. d/225 for high tensile steel
c. Both (c) and (b)
d. Neither (a) nor (b)
Q. The strength of ISA 125 = 75 × 10 mm used as a tie member with its longer leg connected at the ends by 27 mm diameter rivets, is
a. 26,000 kg
b. 26,025 kg
c. 26,050 kg
d. 26,075 kg
Q. The effect of racking forces is considered in the design of(i) Lateral braces(ii) Chord membersThe correct answer is
a. Only (i)
b. Only (ii)
c. Both (i) and (ii)
d. None of the above
Q. Pick up the correct statement from the following:
a. Tacking rivets are used if the minimum distance between centres of two adjacent rivets exceeds 12 t or 200 mm, whichever isless
b. Tacking rivets are not considered to calculate stress
c. Tacking rivets are provided throughout the length of a compression member composed of two components back to back
d. All the above
Q. Under a concentrated load, bearing stress fb in a beam is given by (where b is the length of the bearing plate and h is the depth of the root of the fillet).
a. fb = W/(b + h tw
b. fb = W/(b + 2h tw
c. fb = W/(b + 2h tw
d. fb = W/(b + h tw
Q. For double angles carrying tension, placed back to back and connected to either side of the gusset plate, the sectional area of the section, is equal to cross sectional area of
a. The section
b. The section plus area of rivet holes
c. The section minus area of rivet holes
d. The section multiplied by the area of the rivet hole