MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Strength of Materials knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A tension bar 6m long is made up of two parts, 4m of its length has cross sectional area of 12.5cm while the remaining 2m has 25cm. An axial load 5tonnes is gradually applied. What will be the total strain energy produced if E = 2 x 106 kgf/cm2? |
| A. | 240kgf/cm |
| B. | 242kgf/cm |
| C. | 264kgf/cm |
| D. | 270kgf/cm |
| Answer» C. 264kgf/cm | |
| 2. |
A uniform bar has a cross sectional area of 700mm and a length of 1.5m. if the stress at the elastic limit is 160 N/mm, what will be the value of gradually applied load which will produce the same extension as that produced by the suddenly applied load above? |
| A. | 100kN |
| B. | 110kN |
| C. | 112kN |
| D. | 120kN |
| Answer» D. 120kN | |
| 3. |
A tensile load of 60kN is gradually applied to a circular bar of 4cm diameter and 10m long. What will be the strain energy absorbed by the rod if E=1 105 N/mm2? |
| A. | 100 N-m |
| B. | 132 N-m |
| C. | 148 N-m |
| D. | 143.2 N-m |
| Answer» E. | |
| 4. |
A tensile load of 100kN is gradually applied to a rectangular bar of dimension 2cmx4cm and length of 5m. What will be the strain energy in the bar if E=1 105 N/mm2? |
| A. | 312.5 N-m |
| B. | 314500 N-mm |
| C. | 245.5 N-m |
| D. | 634 N-m |
| Answer» B. 314500 N-mm | |
| 5. |
A tensile load of 60kN is gradually applied to a circular bar of 4cm diameter and 10m long. What will be the stress in the rod if E=1 105 N/mm2? |
| A. | 1.19mm |
| B. | 2.14mm |
| C. | 3.45mm |
| D. | 4.77mm |
| Answer» E. | |
| 6. |
A tensile load of 60kN is gradually applied to a circular bar of 4cm diameter and 5cm long. What will be the stress in the rod if E=1 105 N/mm2? |
| A. | 47.746 N/mm<sup>2</sup> |
| B. | 34.15 N/mm<sup>2</sup> |
| C. | 48.456 N/mm<sup>2</sup> |
| D. | 71.02 N/mm<sup>2</sup> |
| Answer» B. 34.15 N/mm<sup>2</sup> | |