DESIGN OF STEEL STRUCTURE QUIZ

The slenderness ratio of lacing bars should not exceed

120

180

100

145

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If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as

163 mm

161 mm

160 mm

162 mm

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Bending compressive and tensile stresses respectively are calculated based on

net area and gross area

net area in both cases

gross area in both cases

gross area and net area

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Pitch of tacking rivets, when double angles connected back to back and acting as tension members should not be more than

500 mm

300 mm

1000 mm

600 mm

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Economical depth of a plate girder corresponds to

minimum weight

minimum thickness of web

minimum depth

maximum weight

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The mechanism method and the statical method give

upper bound on the strength of structure

lower bound on the strength of structure

upper and lower bounds respectively on the strength of structure

lower and upper bounds respectively on the strength of structure

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The forces acting on the web splice of a plate girder are

Shear and bending forces

Shear and axial forces

Axial and bending forces

Axial forces

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compression force in two end posts The pin of a rocker bearing in a bridge is designed for

bearing, shear and bending

bearing and bending

bearing and shear

bending and shear

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The range of economical spacing of trusses varies from

2L/5 to 3L/5 where L is span

L/3 to L/5

L/4to2L/5

L/3 to L/2

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Gantry girders are designed to resist

lateral and longitudinal loads

lateral loads

lateral, longitudinal and vertical loads

longitudinal loads and vertical loads

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