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The correction for sag is
  • a)
    always additive
  • b)
    always subtractive
  • c)
    always zero
  • d)
    sometimes additive and sometimes subtractive
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The correction for sag isa)always additiveb)always subtractivec)always...
Always negative, 
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The correction for sag isa)always additiveb)always subtractivec)always...


Explanation:

Correcting sag:
- When correcting sag, the correction is always subtractive. This means that the correction needed to fix sag is always in the negative direction, hence subtractive.

Additive vs. subtractive corrections:
- Additive corrections involve adding material or adjusting components in the positive direction to fix a problem.
- Subtractive corrections involve removing material or adjusting components in the negative direction to fix a problem.

Reasoning:
- Sag is a downward deformation in a structure, such as a beam or cable, due to its own weight or external loads.
- To correct sag in a structure, material or components need to be removed or adjusted in a way that counteracts the downward deformation. This is why the correction for sag is always subtractive.

Conclusion:
- In summary, when dealing with sag in structures, the correction needed is always subtractive. This understanding is crucial for engineers and designers working to ensure the stability and safety of structures.
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The correction for sag isa)always additiveb)always subtractivec)always zerod)sometimes additive and sometimes subtractiveCorrect answer is option 'B'. Can you explain this answer?
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