THEORY OF STRUCTURES QUIZ

The ratio of the maximum deflections of a simply supported beam with a central load W and of a cantilever of same length and with a load W at its free end, is

1/12

1/10

1/16

1/8

TRUE ANSWER : ?
YOUR ANSWER : ?

A square column carries a load P at the centroid of one of the quarters of the square. If a is the side of the main square, the combined bending stress will be

p/a²

3p/a²

4p/a²

2p/a²

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YOUR ANSWER : ?

Pick up the correct statement from the following:

In a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal area

In a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic moment

All of these

In a loaded beam, the moment at which the first yield occurs is called yield moment

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YOUR ANSWER : ?

The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is

Parabola

Ellipse

Circle

Straight line

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YOUR ANSWER : ?

constant, depth of a cantilever of length of uniform strength loaded with Keeping breadth uniformly distributed load varies from zero at the free end and

l) at the fixed end

2w w l at the fixed end

3w l at the fixed end

w l) at the fixed end

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YOUR ANSWER : ?

For determining the support reactions at A and B of a three hinged arch, points B and Care joined and produced to intersect the load line at D and a line parallel to the load line through A at D’. Distances AD, DD’ and AD’ when measured were 4 cm, 3 cm and 5 cm respectively. The angle between the reactions at A and B is

90°

30°

45°

60°

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YOUR ANSWER : ?

A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm²), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is

35 N

30 N

40 N

25 N

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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 regains its original shape on removal of the load

It does not regain its original shape at all

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YOUR ANSWER : ?

The vertical reaction for the arch is

wa/2l

wa²/2l

wl/a

wa/l

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YOUR ANSWER : ?

parabolic arch of span and rise , is given by The equation of a

y = h/l² × (1 – x )

y = 2h/l² × (1 – x)

y = 3h/l² × (1 – x)

y = 4h/l² × (1 – x)

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YOUR ANSWER : ?