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This set of Design of Steel Structures Multiple Choice Questions & Answers (MCQs) focuses on Design Of Steel Structures Set 1
Q1 | Select the correct statement
- material cost of a rivet is higher than that of a bolt
- tensile strength of a bolt is lesser than that of a rivet
- bolts are used as a temporary fastening whereas rivets are used as permanent fastenings
- riveting is less noisy than bolting
Q2 | The forces acting on the web splice of a plate girder are
- axial forces
- shear and axial forces
- shear and bending forces
- axial and bending forces
Q3 | Generally the purlins are placed at the panel points so as to avoid
- axial force in rafter
- shear force in rafter
- deflection of rafter
- bending moment in rafter
Q4 | Which of the following sections should preferably be used at places where torsion occurs?
- angle section
- channel section
- box type section
- any of the above
Q5 | Other conditions being same, the load factor in indeterminate structures is
- equal to load factor in determinate structures
- more than the load factor in determinate structures
- less than the load factor in determinate structures
- unpredictable
Q6 | Rivets connecting flange angles to cover plates in a plate girder are subjected to
- horizontal shear only
- vertical load only
- both (a) and (b)
- none of the above
Q7 | The effective length of a fillet weld should not be less than
- two times the weld size
- four times the weld size
- six times the weld size
- weld size
Q8 | In a gusseted base, when the end of the column is machined for complete bearing on the baseplate, then the axial load is assumed to be transferred to base plate
- fully by direct bearing
- fully through fastenings
- 50% by direct bearing and 50% through fastenings
- 75% by direct bearing and 25% through fastenings
Q9 | If the floor is supported at or near the bottom but top chords of a bridge is not braced, then thebridge is called
- deck type
- through type
- half through type
- double deck type
Q10 | The elastic strain for steel is about
- 1/12 of strain at the initiation of strain hardening and about 1/120 of maximum strain
- 1/2 of strain at the initiation of strain hardening and about 1/12 of maximum strain
- 1/12 of strain at the initiation of strain hardening and 1/200 of maximum strain
- 1/24 of strain at the initiation of strain hardening and about 1/200 of maximum strain
Q11 | In the virtual work method, the virtual quantity is
- displacement
- load
- slope
- moment
Q12 | In moment resistant connections, the moment resistance of riveted connection depends upon
- shear in rivets
- compression in rivets
- tension in rivets
- strength of rivets in bearing
Q13 | The portal bracing in a truss bridge is used to
- transfer load from top of end posts to bearings
- keep the rectangular shape of the bridge cross-section
- stiffen the structure laterally
- prevent the sides-way buckling of top chord
Q14 | The maximum permissible span of asbestos cement sheets is
- 650 mm
- 810 mm
- 1250 mm
- 1680 mm
Q15 | Lacing bars in a steel column should be designed to resist
- bending moment due to 2.5% of the column load
- shear force due to 2.5% of the column load
- 2.5% of the column load
- both (a) and (b)
Q16 | The moment of the couple set up in a section of a beam by the longitudinal compressive andtensile force, is known as
- bending moment
- moment of resistance
- flexural stress moment
- none of these
Q17 | The thickness of the web of a mild steel plate girder is less than d/200. If only one horizontalstiffener is used, it is placed at
- the neutral axis of the section
- 2/3rd of the depth of the neutral axis from the compression flange
- 2/5th of the depth of the neutral axis from the compression flange
- 2/5th of the height of the neutral axis from tension flange
Q18 | Shear buckling of web in a plate girder is prevented by using
- vertical intermediate stiffener
- horizontal stiffener at neutral axis
- bearing stiffener
- none of the above
Q19 | The most commonly used sections in lateral system to carry shear force in built up columns, are
- rolled steel flats
- rolled angles
- rolled channels
- all the above
Q20 | The stress in the wall of a thin cylinder subjected to internal pressure, is
- hoop compression
- shear
- torsional shear
- hoop tension
Q21 | The risk coefficient k, depends on
- mean probable design life of structures
- basic wind speed
- both (a) and (b)
- none of the above
Q22 | For eccentrically loaded columns, the bending factor is
- cross-sectional area of column/radius of gyration
- radius of gyration/cross-sectional area of column
- cross-sectional area of column/section modulus of the section
- section modulus of the section/cross-sectional area of column
Q23 | The net area of round bars to resist the tension, is the area of cross section at
- mid-section
- root of the thread
- difference of (a) and (b)
- none of these
Q24 | The bracing between two columns of a steel tank will be designed to resist
- horizontal shear due to wind or earthquake only
- horizontal, shear due to wind or earthquake + 2.5% of column loads
- column loads + 2.5% of horizontal shear due to wind or earthquake
- column loads + full horizontal shear due to wind or earthquake
Q25 | A column splice is used to increase
- length of the column
- strength of the column
- cross-sectional area of the column
- none of these