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Define bench mark and also explain various type of bench mark?
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written 6.7 years ago by
teamques10
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It is a fixed reference point whose elevation with respect to some datum is known. It is noted that any leveling work is first started from BM.
Types of Bench Mark
- GTS benchmark
- Permanent benchmark
- Arbitrary benchmark
- Temporary benchmark
1) GTS benchmark (great trigonometrical survey benchmark)- This benchmark is established …
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