Top 350+ Solved Design of Steel Structures MCQ Questions Answer
Q. If L is the overall length of a combined footing having A as its area, d being the distance betweenthe centre of gravity of the base and centre of the base, the larger width b is
a. (a/l) + (3ad/l²)
b. (a/l) + (6ad/l²)
c. (a/l) - (6ad/l²)
d. (a/l) - (3ad/l²)
Q. Select the correct statement
a. Material cost of a rivet is higher than that of abolt
b. Tensile strength of a bolt is lesser than that of a rivet
c. Bolts are used as a temporary fastening whereas rivets are used as permanentfastenings
d. Riveting is less noisy than bolting
Q. In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate
a. Fully by direct bearing
b. Fully through fastenings
c. 50% by direct bearing and 50% through fastenings
d. 75% by direct bearing and 25% through fastenings
Q. If the floor is supported at or near the bottom but top chords of a bridge is notbraced, then the bridge is called
a. Deck type
b. Through type
c. Half through type
d. Double deck type
Q. The elastic strain for steel is about
a. 1/12 of strain at the initiation of strain hardening and about 1/120 of maximum strain
b. 1/2 of strain at the initiation of strain hardening and about 1/12 of maximum strain
c. 1/12 of strain at the initiation of strain hardening and 1/200 of maximumstrain
d. 1/24 of strain at the initiation of strain hardening and about 1/200 of maximum strain
Q. In moment resistant connections, the moment resistance of riveted connectiondepends upon
a. Shear in rivets
b. Compression in rivets
c. Tension in rivets
d. Strength of rivets in bearing
Q. The moment of the couple set up in a section of a beam by the longitudinalcompressive and tensile force, is known as
a. Bending moment
b. Moment of resistance
c. Flexural stress moment
d. None of these
Q. The thickness of the web of a mild steel plate girder is less than d/200. If only one horizontal stiffener is used, it is placed at
a. The neutral axis of the section
b. 2/3rd of the depth of the neutral axis from the compressionflange
c. 2/5th of the depth of the neutral axis from the compressionflange
d. 2/5th of the height of the neutral axis from tensionflange
Q. The most commonly used sections in lateral system to carry shear force in built upcolumns, are
a. Rolled steel flats
b. Rolled angles
c. Rolled channels
d. All the above
Q. The bracing between two columns of a steel tank will be designed to resist
a. Horizontal shear due to wind or earthquake only
b. Horizontal, shear due to wind or earthquake + 2.5% of column loads
c. Column loads + 2.5% of horizontal shear due to wind or earthquake
d. Column loads + full horizontal shear due to wind orearthquake
Q. A beam may be designed as a cased beam if
a. Section is of double open channel form with the webs not less than 40 mmapart
b. Overall depth and width of the steel section do not exceed 750 and 450 mmrespectively
c. Beam is solidly encased in concrete with 10 mm aggregate having 28 days strength 160kg/cm2
d. All the above
Q. In a built up beam actual bending compressive stress fbc is given by (when y1 isthe distance of the edge of the beam from the neutral axis).
a. fbc = (M/Ixx) × y
b. fbc = (Ixx/M) × y
c. fbc = (Ixx/M) + y
d. fbc = (M/Ixx) + y
Q. If the thickness of a structural member is small as compared to its length andwidth, it is classified as
a. One dimensional
b. Two dimensional
c. Three dimensional
d. None of these