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Which one of the following statements is not correct?
- a)Change point is a point denoting shifting of level
- b)For levelling work both centering and levelling of a dumpy level are prerequisite
- c)Bench mark is a point whose RL is always, known
- d)None of the above
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Which one of the following statements is not correct?a)Change point is...
Explanation:
Change Point:
A change point is a point that denotes the shifting of the level in a survey. It is an important concept in surveying and is used to mark the change in elevation or height. A change point may be used to indicate a change in slope or the presence of a feature such as a ridge or a valley.
Prerequisite for levelling work:
For levelling work, both centering and levelling of a dumpy level are prerequisites. Centering involves the process of placing the dumpy level at the center of the survey area. Levelling involves measuring the height difference between two points in the survey area. Both centering and levelling are important steps in the levelling process and are necessary to obtain accurate survey data.
Bench Mark:
A benchmark is a point whose RL (Reduced Level) is always known. It is a point of reference used to establish the elevation of other points in the survey area. Benchmarks are typically established at a fixed elevation and are used as reference points for measuring the height or depth of other points in the survey area.
Conclusion:
Therefore, option 'D' is not correct as all the other options are correct and important concepts in surveying.
Change Point:
A change point is a point that denotes the shifting of the level in a survey. It is an important concept in surveying and is used to mark the change in elevation or height. A change point may be used to indicate a change in slope or the presence of a feature such as a ridge or a valley.
Prerequisite for levelling work:
For levelling work, both centering and levelling of a dumpy level are prerequisites. Centering involves the process of placing the dumpy level at the center of the survey area. Levelling involves measuring the height difference between two points in the survey area. Both centering and levelling are important steps in the levelling process and are necessary to obtain accurate survey data.
Bench Mark:
A benchmark is a point whose RL (Reduced Level) is always known. It is a point of reference used to establish the elevation of other points in the survey area. Benchmarks are typically established at a fixed elevation and are used as reference points for measuring the height or depth of other points in the survey area.
Conclusion:
Therefore, option 'D' is not correct as all the other options are correct and important concepts in surveying.
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Community Answer
Which one of the following statements is not correct?a)Change point is...
Explanation:
- Change point is a point denoting shifting of level: This statement is correct. A change point is a point where there is a shift in the level, usually marked by a change in elevation.
- For levelling work both centering and levelling of a dumpy level are prerequisite: This statement is also correct. Proper centering of the dumpy level and ensuring that it is leveled are essential for accurate leveling work.
- Bench mark is a point whose RL is always known: This statement is not correct. While a bench mark is a point of reference with a known elevation (Reduced Level - RL), it is not always the case that the elevation is known. Bench marks are usually established through surveying techniques to provide a reference point for other elevation measurements.
- Change point is a point denoting shifting of level: This statement is correct. A change point is a point where there is a shift in the level, usually marked by a change in elevation.
- For levelling work both centering and levelling of a dumpy level are prerequisite: This statement is also correct. Proper centering of the dumpy level and ensuring that it is leveled are essential for accurate leveling work.
- Bench mark is a point whose RL is always known: This statement is not correct. While a bench mark is a point of reference with a known elevation (Reduced Level - RL), it is not always the case that the elevation is known. Bench marks are usually established through surveying techniques to provide a reference point for other elevation measurements.
Explanation:
- Change point is a point denoting shifting of level: This statement is correct. A change point is a point where the level changes or shifts.
- For levelling work both centering and levelling of a dumpy level are prerequisite: This statement is correct. Centering and leveling of a dumpy level are essential for accurate leveling work.
- Bench mark is a point whose RL is always known: This statement is not correct. While a bench mark is a point of known elevation (Reduced Level), it is not always known. Bench marks need to be established and verified for accuracy in surveying work.
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Which one of the following statements is not correct?a)Change point is a point denoting shifting of levelb)For levelling work both centering and levelling of a dumpy level are prerequisitec)Bench mark is a point whose RL is always, knownd)None of the aboveCorrect answer is option 'D'. Can you explain this answer?
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