THEORY OF STRUCTURES QUIZ

The locus of reaction of a two hinged semi-circular arch, is

Straight line

Circle

Hyperbola

Parabola

TRUE ANSWER : ?
YOUR ANSWER : ?

The greatest load which a spring can carry without getting permanently distorted, is called

Stiffness

Proof load

Proof stress

Proof resilience

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In plastic analysis, the shape factor for a triangular section, is

1.5

1.34

2.5

2.34

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A truss containing j joints and m members, will be a simple truss if

m = 2j – 3

j = 3m – 2

m = 3j – 2

j = 2m – 3

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An isolated load W is acting at a distance a from the left hand support, of a three hinged arch of span 2l and rise h hinged at the crown, the horizontal reaction at the support, is

Wa/h

2h/Wa

2W/ha

Wa/2h

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The forces in the members of simple trusses, may be analysed by

All of these

Method of sections

Graphical method

Method of joints

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A material is said to be perfectly elastic if

It regains its original shape partially on removal of the load

None of these

It does not regain its original shape at all

It regains its original shape on removal of the load

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The maximum bending moment for a simply supported beam with a uniformly distributed load w/unit length, is

WI²/8

WI/2

WI²/12

WI²/4

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The point of contraflexure is the point where

M. is minimum

M. is maximum

M. changes sign

S.F. is zero

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For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is

0.505

0.707

0.404

0.303

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