The law which states that within elastic limits strain produced is proportional to the stress producing it is known as _____________

The law which states that within elastic limits strain produced is proportional to the stress producing it is known as _____________

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Bernoulli’s law

Hooke’s law

Hooke’s law

Poisson’s law

What will be the modulus of rigidity if the value of modulus of elasticity is 200 and Poissons ratio is 0.25?

What will be the modulus of rigidity if the value of modulus of elasticity is 200 and Poissons ratio is 0.25?

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70

80

125

250

Elastic limit is the point ____________

Elastic limit is the point ____________

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up to which stress is proportional to strain

At which elongation takes place without application of additional load

Up to which if the load is removed, original volume and shapes are regained

None of the above

A member which does not regain its original shape after removal of the load producing deformation is said __________

A member which does not regain its original shape after removal of the load producing deformation is said __________

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Plastic

Elastic

Rigid

None of the above

The phenomenon of slow extension of materials having a constant load, I.e. increasing with the time is called

The phenomenon of slow extension of materials having a constant load, I.e. increasing with the time is called

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Creeping

Yielding

Breaking

None of the above

Find the elongation of an steel rod of 100mm length when it is subjected to a tensile strain of 0.005?

Find the elongation of an steel rod of 100mm length when it is subjected to a tensile strain of 0.005?

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0.2mm

0.3mm

0.5mm

0.1mm

A bar of diameter 30mm is subjected to a tensile load such that the measured extension on a gauge length of 200mm is 0.09mm and the change in diameter is 0.0045mm. Calculate the Poissons ratio?

A bar of diameter 30mm is subjected to a tensile load such that the measured extension on a gauge length of 200mm is 0.09mm and the change in diameter is 0.0045mm. Calculate the Poissons ratio?

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1/3

1/4

1/5

1/6

The lateral strain is ___________

The lateral strain is ___________

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The ratio of axial deformation to the original length

The ratio of deformation in area to the original area

The strain at right angles to the direction of applied load

The ratio of length of body to the tensile force applied on it

A tensile test was conducted on a mild steel bar. The diameter and the gauge length of bat was 3cm and 20cm respectively. The extension was 0.21mm. What is the value to strain?

A tensile test was conducted on a mild steel bar. The diameter and the gauge length of bat was 3cm and 20cm respectively. The extension was 0.21mm. What is the value to strain?

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0.0010

0.00105

0.0105

0.005

Which point on the stress strain curve occurs after the proportionality limit?

Which point on the stress strain curve occurs after the proportionality limit?

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Upper yield point

Lower yield point

Elastic limit

Ultimate point

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