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Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.
Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.
- a)Both A and R are individually true and R is the correct explanation of A
- b)Both A and R are individually true but R is not the correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'B'. Can you explain this answer?
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Assertion (A): Endurance limits for all materials are always less than...
Explanation:
The statement is true that the endurance limit of all materials is always less than the ultimate strength of the corresponding materials. Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading. This is because a dislocation in a material creates a stress concentration point. When this point is subjected to variable loading, the stress concentration point becomes a crack or a fracture point. The crack or fracture point will then propagate through the material until it fails. This is why the endurance limit of a material is always less than its ultimate strength.
A is true but R is false:
This statement is false because the reason given is actually true. Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.
A is false but R is true:
This statement is false because the assertion is true. The endurance limit of all materials is always less than the ultimate strength of the corresponding materials.
Both A and R are individually true but R is not the correct explanation of A:
This statement is false because R is actually the correct explanation of A. The endurance limit of a material is always less than its ultimate strength because stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.
Both A and R are individually true and R is the correct explanation of A:
This statement is true. The endurance limit of all materials is always less than the ultimate strength of the corresponding materials because stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.
The statement is true that the endurance limit of all materials is always less than the ultimate strength of the corresponding materials. Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading. This is because a dislocation in a material creates a stress concentration point. When this point is subjected to variable loading, the stress concentration point becomes a crack or a fracture point. The crack or fracture point will then propagate through the material until it fails. This is why the endurance limit of a material is always less than its ultimate strength.
A is true but R is false:
This statement is false because the reason given is actually true. Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.
A is false but R is true:
This statement is false because the assertion is true. The endurance limit of all materials is always less than the ultimate strength of the corresponding materials.
Both A and R are individually true but R is not the correct explanation of A:
This statement is false because R is actually the correct explanation of A. The endurance limit of a material is always less than its ultimate strength because stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.
Both A and R are individually true and R is the correct explanation of A:
This statement is true. The endurance limit of all materials is always less than the ultimate strength of the corresponding materials because stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.
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Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer?
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Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer?.
Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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ample number of questions to practice Assertion (A): Endurance limits for all materials are always less than the ultimate strength of the corresponding materials.Reason (R): Stress concentration in a machine part due to any dislocation is very damaging when the part is subjected to variable loading.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of A c)A is true but R is falsed)A is false but R is trueCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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