Civil Engineering (CE) Exam  >  Civil Engineering (CE) Questions  >  Consider the following statements:1. On a Pri... Start Learning for Free
Consider the following statements:
1. On a Principal plane, only normal stress acts
2. On a Principal plane, both normal and shear stresses acts
3. On a Principal plane, only shear stress acts
4. Isotropic state of stress is independent of frame of reference
Which of the above statements is/are correct?
  • a)
    1 and 4
  • b)
    2 only
  • c)
    2 and 4 only
  • d)
    2 and 3
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following statements:1. On a Principal plane, only normal...
Principal planes are the planes at which only normal stress is acting and shear stress is zero at that plane,
Option 2 and 3 are wrong. So, correct option is 1 and 4
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Most Upvoted Answer
Consider the following statements:1. On a Principal plane, only normal...
Understanding Principal Planes and Stress States
When analyzing stress in materials, it is crucial to understand the behavior of stresses on principal planes. Let's break down the statements provided:
1. On a Principal plane, only normal stress acts
- This statement is correct. On principal planes, the shear stress component is zero, and only normal stresses are present. This is a fundamental property of principal stresses, where the maximum and minimum normal stresses occur.
2. On a Principal plane, both normal and shear stresses act
- This statement is incorrect. As mentioned, principal planes are defined by the absence of shear stress. Therefore, only normal stresses exist on these planes.
3. On a Principal plane, only shear stress acts
- This statement is also incorrect. Again, principal planes are characterized by the absence of shear stress, meaning only normal stresses are present.
4. Isotropic state of stress is independent of frame of reference
- This statement is correct. An isotropic state of stress implies that the material exhibits the same properties in all directions, making it independent of the observer’s frame of reference.
Conclusion
Based on the analysis:
- Correct Statements: 1 and 4
- Incorrect Statements: 2 and 3
Thus, the correct answer is option A: 1 and 4.
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Consider the following statements:1. On a Principal plane, only normal stress acts2. On a Principal plane, both normal and shear stresses acts3. On a Principal plane, only shear stress acts4. Isotropic state of stress is independent of frame of referenceWhich of the above statements is/are correct?a)1 and 4b)2 onlyc)2 and 4 onlyd)2 and 3Correct answer is option 'A'. Can you explain this answer?
Question Description
Consider the following statements:1. On a Principal plane, only normal stress acts2. On a Principal plane, both normal and shear stresses acts3. On a Principal plane, only shear stress acts4. Isotropic state of stress is independent of frame of referenceWhich of the above statements is/are correct?a)1 and 4b)2 onlyc)2 and 4 onlyd)2 and 3Correct answer is option 'A'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Consider the following statements:1. On a Principal plane, only normal stress acts2. On a Principal plane, both normal and shear stresses acts3. On a Principal plane, only shear stress acts4. Isotropic state of stress is independent of frame of referenceWhich of the above statements is/are correct?a)1 and 4b)2 onlyc)2 and 4 onlyd)2 and 3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. On a Principal plane, only normal stress acts2. On a Principal plane, both normal and shear stresses acts3. On a Principal plane, only shear stress acts4. Isotropic state of stress is independent of frame of referenceWhich of the above statements is/are correct?a)1 and 4b)2 onlyc)2 and 4 onlyd)2 and 3Correct answer is option 'A'. Can you explain this answer?.
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