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This set of Design of Steel Structures Multiple Choice Questions & Answers (MCQs) focuses on Design Of Steel Structures Set 2
Q1 | The bracing provided in the plane of end posts is called
- sway bracing
- portal bracing
- top lateral bracing
- bottom lateral bracing
Q2 | In a built up beam actual bending compressive stress fbc is given by (when y1 is the distance of theedge of the beam from the neutral axis).
- fbc = (m/ixx) × y
- fbc = (ixx/m) × y
- fbc = (ixx/m) + y
- fbc = (m/ixx) + y
Q3 | If the thickness of a structural member is small as compared to its length and width, it is classifiedas
- one dimensional
- two dimensional
- three dimensional
- none of these
Q4 | The statical method of plastic analysis satisfies
- equilibrium and mechanism conditions
- equilibrium and plastic moment conditions
- mechanism and plastic moment conditions
- equilibrium condition only
Q5 | Lug angle is
- used with single angle member
- not used with double angle member
- used with channel member
- all the above
Q6 | For the economical design of a combined footing to support two equal column loads, theprojections of beams in lower tier are kept such that bending moment under column is equal to
- bending moment at the centre of the beam
- half the bending moment at the centre of the beam
- twice the bending moment at the centre of the beam
- none of these
Q7 | Stiffeners are used in a plate girder
- to reduce the compressive stress
- to reduce the shear stress
- to take the bearing stress
- to avoid bulking of web plate
Q8 | As compared to field rivets, the shop rivets are
- stronger
- weaker
- equally strong
- any of the above
Q9 | A fillet weld whose axis is parallel to the direction of the applied load, is known as
- diagonal filler weld
- end fillet weld
- side fillet weld
- all the above
Q10 | In a truss girder of a bridge, a diagonal consists of mild steel flat 4001.S.F. and carries a pull of 80tonnes. If the gross-diameter of the rivet is 26 mm, the number of rivets required in the splice, is
- 6
- 7
- 8
- 9
Q11 | When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
- black bolt
- ordinary unfinished bolt
- turned and fitted bolt
- high strength bolt
Q12 | Factor of safety is the ratio of
- yield stress to working stress
- tensile stress to working stress
- compressive stress to working stress
- bearing stress to working stress
Q13 | The best arrangement to provide unified behaviour in built up steel columns is by
- lacing
- battening
- tie plates
- perforated cover plates
Q14 | The ratio of shearing stress to shearing strain within elastic limit, is known as
- modulus of elasticity
- shear modulus of elasticity
- bulk modulus of elasticity
- tangent modulus of elasticity
Q15 | In a built up section carrying a tensile force, the flanges of two channels are turned outward
- to simplify the transverse connections
- to minimise lacing
- to have greater lateral rigidity
- all the above
Q16 | A fillet weld may be termed as
- mitre weld
- concave weld
- convex weld
- all the above
Q17 | Gantry girders are designed to resist
- lateral loads
- longitudinal loads and vertical loads
- lateral, longitudinal and vertical loads
- lateral and longitudinal loads
Q18 | The distance between e.g. of compression and e.g. of tension flanges of a plate girder, is known as
- overall depth
- clear depth
- effective depth
- none of these
Q19 | The effective length of a compression member of length L held in position at both ends but notrestrained in direction, is
- l
- 0.67 l
- 0.85 l
- 1.5 l
Q20 | The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as
- 0.65 kn/m²
- 0.75 kn/m²
- 1.35 kn/m²
- 1.50 kn/m²
Q21 | Design of a riveted joint is based on the assumption:
- bending stress in rivets is accounted for
- riveted hole is assumed to be completely filled by the rivet
- stress in the plate in not uniform
- friction between plates is taken into account
Q22 | Steel tanks are mainly designed for
- weight of tank
- wind pressure
- water pressure
- earthquake forces
Q23 | The cross-section of a standard fillet is a triangle whose base angles are
- 45° and 45°
- 30° and 60°
- 40° and 50°
- 20° and 70°
Q24 | The sway bracing is designed to transfer
- 2vi % of the top panel wind load to bottom bracing
- 10% of the top panel wind load to bottom bracing
- 25% of the top panel wind load to bottom bracing
- 50% of the top panel wind load to bottom bracing
Q25 | Cold driven rivets range from
- 6 to 10 mm in diameter
- 10 to 16 mm in diameter
- 12 to 22 mm in diameter
- 22 to 32 mm in diameter