THEORY OF STRUCTURES QUIZ

The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm for an eccentric load 100 t for non-development of tension, is

2.75 cm

3.00 cm

3.50 cm

4.25 cm

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The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being EI, is

WL3/8EL

WL3/3EL

WL3/48EL

WL3/24EL

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

All of these

Method of sections

Method of joints

Graphical method

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A shaft rotating N.R.M. under a torque T, transmits a power

/60 Newton metres/sec

/60 Newton metres/min

/30 Newton metres/min

/30 Newton metres/sec

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The ratio of maximum shear stress to average shear stress of a circular beam, is

3/2

4/3

2/3

4/7

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A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised

Composite beam gets subjected to a couple

Brass experiences compressive force

All of these

Steel experiences tensile force

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In a shaft, the shear stress is not directly proportional to

Angle of twist

Radius of the shaft

Length of the shaft

Modulus of rigidity

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Flat spiral springs

Are wound by applying a torque

Consist of uniform thin strips

Consist of uniform thin strips

All of these

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The equivalent length of a column of length L, having both the ends hinged, is

L

2L

S

L/2

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

1.7

1.3

1.2

1.5

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