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Theory

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Aim

Theory

Objective

Pretest

Procedure

Simulation

Posttest

References

Feedback

Tensile Test

Choose difficulty:

Beginner

Intermediate

Advanced

1. What is proportionality limit?

a: Limit up to which the necking begins. Explanation

Explanation

b: Limit up to which the material breaks. Explanation

Explanation

c: Limit up to which the Hooke's law is valid. Explanation

Explanation

d: Limit up to which the stress is proportional to strain Explanation

Explanation

e: Both c & d. Explanation

Explanation

2. The elastic limit of a material is _____________

a: the least amount of stress that can be held without permanent deformation Explanation

Explanation

b: highest stress a material can experience without permanent deformation Explanation

Explanation

c: average stress experienced by material in its lifeline. Explanation

Explanation

d: strain on material Explanation

Explanation

3. True stress-strain curve for materials is plotted between.

a: load/original cross-sectional area and change in length/original length Explanation

Explanation

b: load/instantaneous cross-sectional area and log(length/original length) Explanation

Explanation

c: load/instantaneous cross-sectional area and change in length/original length Explanation

Explanation

d: load/instantaneous cross-sectional area and instantaneous area/ original area. Explanation

Explanation

4. The tensile test is carried on __________ materials.

a: Ductile Explanation

Explanation

b: Brittle Explanation

Explanation

c: Malleable Explanation

Explanation

d: Plastic Explanation

Explanation

5. Extensometer is a device that measures change in length to the gage length.

a: True Explanation

Explanation

b: False Explanation

Explanation

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