# Strength of Materials Mcqs

This set of Mechanical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “ Strength of Materials ”. These questions are chosen from a collection of most authoritative and best reference books on Mechanical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Strength of Materials comprehensively.

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7. Strength of Materials Mcqs

## 1. If a part is constrained to move and heated, it will develop ____________________?

Principal stress

Tensile stress

Compressive stress

Shear stress

## 2. The value of modulus of elasticity for mild steel is of the order of________________?

2.1xl05 kg/cm2

2.1 X 106 kg/cm2

2.1 x 107 kg/cm2

0.1 xlO6 kg/cm2 (

## 3. The buckling load for a given material depends on___________________?

Slenderness ratio and area of cross-section

Poisson’s ratio and modulus of elasticity

Slenderness ratio and modulus of elasticity

Slenderness ratio, area of cross-section and modulus of elasticity

Plasticity

Elasticity

Ductility

Malleability

## 5. Poisson’s ratio is defined as the ratio of_________________?

Longitudinal stress and longitudinal strain

Longitudinal stress and lateral stress

Lateral stress and longitudinal stress

Lateral stress and lateral strain

Malleability

Ductility

Plasticity

Elasticity

More than 50%

25—50%

10—25%

5—10%

## 8. In a tensile test, near the elastic limit zone, the______________?

Tensile strain increases more quickly

Tensile strain decreases more quickly

Tensile strain increases in proportion to the stress

Tensile strain decreases in proportion to the stress

Creeping

Yielding

Breaking

Plasticity

## 10. Rupture stress is________________?

Breaking stress

Maximum load/original cross-sectional area

Load at breaking point/A

Load at breaking point/neck area

## 11. The ratio of lateral strain to the linear strain within elastic limit is known as_______________?

Young’s modulus

Bulk modulus

Modulus of rigidity

Modulus of elasticity

## 12. The stress at which extension of the material takes place more quickly as compared to the increase in load is called______________?

Elastic point of the material

Plastic point of the material

Breaking point of the material

Yielding point of the material

## 13. Flow stress corresponds to___________________?

Fluids in motion

Breaking point

Plastic deformation of solids

Rupture stress

0.1 to 0.2

0.23 to 0.27

0.25 to 0.33

0.4 to 0.6

## 15. The energy absorbed in a body, when it is strained within the elastic limits, is known as________________?

Strain energy

Resilience

Proof resilience

Modulus of resilience

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