Top 350+ Solved Design of Steel Structures MCQ Questions Answer
Q. The greatest permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to
a. 180 t
b. 220 t
c. 230 t
d. 270 t
Q. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is
a. 180
b. 200
c. 250
d. 350
Q. Effective length of a column effectively held in position at both ends and restrained in direction at one end, is
a. L
b. 0.67 L
c. 0.85 L
d. 1.5 L
Q. As per IS : 800, for compression flange, the outstand of flange plates should notexceed
a. 12 t
b. 16 t
c. 20 t
d. 25 tt
Q. For a cantilever beam of length continuous at the support and unrestrained against torsion at the support and free at the end, the effective length is equal to
a. l = L
b. l = 2L
c. l = 0.5L
d. l = 3L
Q. Pick up the correct statement from the following:
a. When the gauge distance is larger than the pitch, the failure of the section may occur in a zig-zag line
b. When the gauge distance is smaller than the pitch, the failure of the section may occur in a straight right angle section through the centre of rivet holes
c. When the gauge distance and pitch are both equal, the failure to the section becomes more likely as the diameter of the holesincreases
d. All the above
Q. If the thickness of plate to be connected by a rivet is 16 mm, then suitable sizeof rivet as per Unwin's formula will be
a. 16 mm
b. 20 mm
c. 24 mm
d. 27 mm
Q. Angle of inclination of the lacing bar with the longitudinal axis of the columnshould preferably be between
a. 10° to 30°
b. 30° to 40°
c. 40° to 70°
d. 90°
Q. IS : 800 - 1971 recommends that in a splice plate the number of rivets carrying calculated shear stress through a packing greater than 6 mm thick, is to be increased by 2.5% for every
a. 1.00 mm thickness of packing
b. 1.50 mm thickness of packing
c. 2.0 mm thickness of packing
d. 2.50 mm thickness of packing
Q. To the calculated area of cover plates of a built-up beam, an allowance for rivet holes to be added, is
a. 10 %
b. 13 %
c. 15 %
d. 18 %
Q. If the moment of inertia of a section about its axis is and its effective sectional area is, its radius of gyration r about the axis, is
a. r = I/A
b. r I/A)
c. r = (I/A)
d. r A/I)
Q. A structural member subjected to compressive stress in a direction parallel to its longitudinal axis, is generally known as
a. Column
b. Stanchion
c. Post
d. All the above
Q. The equivalent axial tensile load Pe, which produces an average axial tensile stress in the section equivalent to the combined stress due to axial tension P and bending M, at the extreme fibre of the section, is given by (where Z is the section modulus of the section).
a. Pe = P + MA/Z
b. Pe = P - MA/Z
c. Pe = P - Z/MA
d. Pe = P + Z/MA