Land Survey : BS, IS and FS in Land Survey

hello dears.
this short tutorial is about the learning of back sights , inter sights and fore sights.
all these above are just readings taken at staff rod by surveyor using leveling machine .

lets watch the video to learn what are these three types readings.

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Quantity survey:
https://www.youtube.com/watch?v=fCuGzkwlqTE&list=PLkqQL18wHNCue8D3ubdFpK6bnFyIg6EPu

Land survey:
https://www.youtube.com/watch?v=6ujrkL59uFU&list=PLkqQL18wHNCs40pso05CRa5rje4FwSmaO

interview questions with answers:
https://www.youtube.com/watch?v=DeyA5aekSXQ&list=PLkqQL18wHNCsD3KfTxeDnxrzH5QIsKI0K

engineering problems with solutions:
https://www.youtube.com/watch?v=TBhR8NLknsk&list=PLkqQL18wHNCs0MRp-PepuCb5Ccdno8_-T

RCC design etc.
https://www.youtube.com/watch?v=KBL5qGFmr0w&list=PLkqQL18wHNCsB1F2-d41XoKkBi9eHBOOc

public health engineering:
https://www.youtube.com/watch?v=XBOpOE4a-N0&list=PLkqQL18wHNCviZaGTEfbo8CmcyUgUgMZG

Area and volume calculation:
https://www.youtube.com/watch?v=i6bCiO8xfdg&list=PLkqQL18wHNCtt3EwuyXazHt33xEeQ7zga

photo and video editing:
https://www.youtube.com/watch?v=TQa4z4hQyTo&list=PLkqQL18wHNCslghIDyxy_HscGAu1ygk6v

Math is fun:
https://www.youtube.com/watch?v=XGNy3KmC7o4&list=PLkqQL18wHNCt-CmOY_qTVVC6PVkJXWBO9

AutoCAD tips:
https://www.youtube.com/watch?v=rScinnqSpaE&list=PLkqQL18wHNCtv9HCQnkNcGJW0tajS5Ko3

Road design:
https://www.youtube.com/watch?v=Gc8TLh5yKwQ&list=PLkqQL18wHNCs2AGcvPSW512CRtPT_a15Q

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thank you for watching....

Видео Land Survey : BS, IS and FS in Land Survey канала Engineer Boy