Top 350+ Solved Design of Steel Structures MCQ Questions Answer
Q. The use of tie plates in laced columns is
a. prohibited
b. not prohibited
c. permitted at start and end of lacing system only
d. permitted between two parts of the lacing
Q. According to IS : 800-1962 the permissible bending stress in steel slab plates, is
a. 1500 kg/cm2
b. 1420 kg/cm2
c. 2125 kg/cm2
d. 1890 kg/cm2
Q. The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated fromthe formula
a. t = wl/4r
b. t = wr/8l
c. t = wl/8r
d. t = wl/2r
Q. The minimum pitch of rivet holes of diameter d should not be less than
a. d
b. 1.25 d
c. 1.5 d
d. 2.5 d
Q. Design of a riveted joint, is based on the assumption:
a. load is uniformly distributed among all the rivets
b. shear stress on a rivet is uniformly distributed over its gross area
c. bearing stress in the rivet is neglected
d. all the above
Q. If is the maximum allowable bending stress in a tension member whose radius of gyrationis and depth is 2y, the required cross sectional area is given by
a. a = my/fr²
b. a = my²/fr²
c. a = my/fr
d. a = my/f²r²
Q. The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, isupto a height of
a. the effective span
b. 1.25 times the effective span
c. 1.50 times the effective span
d. 2.0 times the effective span
Q. Diameter of a rivet hole is made larger than the diameter of the rivet by
a. 1.0 mm for rivet diameter upto 12 mm
b. 1.5 mm for rivet diameter exceeding 25 mm
c. 2.0 mm for rivet diameter over 25 mm
d. none of these
Q. According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unitlength, is taken as
a. 0.000008
b. 0.000010
c. 0.000012
d. 0.000014
Q. In case of timber structures, the simple bending formula M = fz may be applied for
a. rectangular beams up to 300 mm depth
b. all rectangular beams
c. solid circular beams only
d. all square cross-section beams
Q. Perforated cover plates are particularly suitable for built up sections consisting of
a. channels placed back to back
b. channels placed toe to toe
c. four angle box section
d. all the above
Q. Effective length of a column effectively held in position and restrained in direction at both ends, is
a. l
b. 0.67 l
c. 0.85 l
d. 1.5 l
Q. For rivets in tension with countersunk heads, the tensile value shall be
a. reduced by 25 %
b. reduced by 33.3%
c. increased by 25 %
d. increased by 33.3 %
Q. The equivalent axial load may be defined as the load which produces a stress equal to
a. maximum stress produced by the eccentric load
b. maximum stressed fibre
c. bending stress
d. none of these