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Test: Stress Strain Diagrams & Mechanical Properties - Mechanical Engineering MCQ


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10 Questions MCQ Test Engineering Materials - Test: Stress Strain Diagrams & Mechanical Properties

Test: Stress Strain Diagrams & Mechanical Properties for Mechanical Engineering 2024 is part of Engineering Materials preparation. The Test: Stress Strain Diagrams & Mechanical Properties questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Stress Strain Diagrams & Mechanical Properties MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Stress Strain Diagrams & Mechanical Properties below.
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Test: Stress Strain Diagrams & Mechanical Properties - Question 1

Which of the following parameters can be obtained by tension test of a standard specimen?

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 1

Tension test determines the parameters related to stress strain curve and also reduction and elongation in area and length can be found respectively.

Test: Stress Strain Diagrams & Mechanical Properties - Question 2

Proportional Limit is defined as the stress at which the stress strain curves begins to deviate from the straight line.

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 2

Explanation: Proportional limit is the point of deviation in stress strain curve.

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Test: Stress Strain Diagrams & Mechanical Properties - Question 3

 Which of the following is the definition of Compliance?

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 3

Explanation: Compliance is a parameter which is the inverse of stiffness.

Test: Stress Strain Diagrams & Mechanical Properties - Question 4

Yield strength is defined as the maximum stress at which a marked increase in elongation occurs without increase in________

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 4

Explanation: Yield strength is the strength at which strain increases. Now as the strength is constant, therefore load is constant.

Test: Stress Strain Diagrams & Mechanical Properties - Question 5

For the materials which do not exhibit a well-defined yield points, the yield strength is defined as the stress corresponding to a permanent set of how much percentage of gauge length?

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 5

Explanation: Generally for all the practical purpose, an offset of 0.2% of gauge length is considered.

Test: Stress Strain Diagrams & Mechanical Properties - Question 6

 Proof strength is defined as the stress which will produce a permanent extension of how much percentage in the gauge length of the standard test specimen.

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 6

Explanation: Proof strength is used in design of fasteners. It corresponds to 0.1% permanent deformation of gauge length.

Test: Stress Strain Diagrams & Mechanical Properties - Question 7

Which of the following are true about plasticity?

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 7

Explanation: This is the basic definition of plasticity.

Test: Stress Strain Diagrams & Mechanical Properties - Question 8

Which of the following is measure of stiffness?

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 8

Explanation: Stiffness is the ability of material to resist deformation under external load. Hence it is measured by modulus of elasticity.

Test: Stress Strain Diagrams & Mechanical Properties - Question 9

Which of the following facts are true for resilience?

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 9

Explanation: Toughness is ability to store energy till proportional limit during deformation and to release this energy when unloaded.

Test: Stress Strain Diagrams & Mechanical Properties - Question 10

Modulus of resilience is defined as

Detailed Solution for Test: Stress Strain Diagrams & Mechanical Properties - Question 10

Explanation: Modulus of resilience is strain energy per unit volume.

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