DESIGN OF STEEL STRUCTURE QUIZ

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

161 mm

160 mm

163 mm

162 mm

TRUE ANSWER : ?
YOUR ANSWER : ?

A circular column section is generally not used in actual practice because

it is uneconomical

All of these

it is difficult to connect beams to the round sections

it cannot carry the load safely

TRUE ANSWER : ?
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According to IS Specifications, the effective length of a column effectively held in position at both ends and restrained in direction at one end is taken as

1.5 L

0.8 L

0.67 L

L

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YOUR ANSWER : ?

If the thickness of plate to be connected by a rivet is 16 mm, then suitable size of rivet as per Unwin’s formula will be

20 mm

16 mm

27 mm

24 mm

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Shear buckling of web in a plate girder is prevented by using

horizontal stiffener at neutral axis

bearing stiffener

None of these

vertical intermediate stiffener

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The risk coefficient k, depends on

None of these

mean probable design life of structures

both (a) and (b)

basic wind speed

TRUE ANSWER : ?
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The basic wind speed is specified at a height ‘h’ above mean ground level in an open terrain. The value of ’h’ is

30 m

40 m

10 m

20 m

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The maximum permissible span of asbestos cement sheets is

1680 mm

650 mm

1250 mm

810 mm

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The elastic strain for steel is about

1/12 of strain at the initiation of strain hardening and about 1/120 of maximum strain

1/24 of strain at the initiation of strain hardening and about 1/200 of maximum strain

1/12 of strain at the initiation of strain hardening and 1/200 of maximum strain

1/2 of strain at the initiation of strain hardening and about 1/12 of maximum strain

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The mechanism method of plastic analysis satisfies

equilibrium and mechanism conditions

equilibrium and plastic moment conditions

equilibrium condition only

mechanism and plastic moment conditions

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