DESIGN OF STEEL STRUCTURE QUIZ

Normally, the angle of roof truss with asbestos sheets should not be less than

35°

40°

30°

26/2°

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The overlap of batten plates with the main members in welded connections should be more than (where t = thickness of the batten plate)

6t

3t

4t

8t

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For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?

both (b) or (c)

equal angles back to back

unequal legged angles with short legs back to back

unqual legged angles with long legs back to back

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Lug angles

All listed here

increases shear lag.

are unequal angles.

are used to reduce the length of connection.

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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

160 mm

161 mm

162 mm

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Efficiency of a riveted joint, having the minimum pitch as per IS : 800, is

50%

30%

60%

40%

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If the floor is supported at or near the bottom but top chords of a bridge is not braced, then the bridge is called

Half through type

Double deck type

Through type

Deck type

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The diameter of base of conical flare of a steel stack is (where d is the diameter of the cylindrical part)

Any of these

more than d

less than d

equal to d

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The slenderness ratio of lacing bars should not exceed

145

180

100

120

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The portal bracing in a truss bridge is used to

Stiffen the structure laterally

Prevent the sides-way buckling of top chord

Transfer load from top of end posts to bearings

Keep the rectangular shape of the bridge cross-section

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