How to Calculate Height of Collimation (HOC) & Rise and Fall Methods for Site Engineering Surveying

[@KelvinAcademyYouTube]

Video Timeline Guide:
00:00 Introduction.
00:31 Surveying field book table for recording.
00:38 Table difference between HOC and Rise and Fall.
00:53 The instrument needed for the levelling (Auto Level).
01:02 The difference between Auto level and dumpy level.
01:10 Auto level, surveying tripod stand, survey levelling staff or rod.
01:30 Plumb bob in surveying (what it's used for).
01:55 What is surveying benchmark (How to identify site benchmark).
02:44 GPS and GIS with site benchmark.
03:23 How to record surveying field data.
03:27 How to record the benchmark values on table.
03:43 What is Backsight in surveying and how to record backsight.
04:31 What is Intersight (intermediate sight) in surveying and how to record intersight.
05:30 What is a foresight and how to record foresight.
09:42 How to read the cross hair in surveying.
10:38 Staff or rod movements and points to measure.
10:53 Manhole, marked points on site, curbs, gutters, permanent site structures, etc.
11:59 Foundation setting out with theodolite, total station or measuring tape.
12:11 Difference between a total station and a theodolite.
12:20 Purpose of levelling in surveying.
12:50 How to calculate levels using height of collimation.
19:33 How to check for Height of Collimation with formulas.
19:43 Sum of backsight and foresight.
20:15 Last reduced level minus first reduced level.
22:51 How to calculate levels using Rise and Fall methods.
31:13 Formulas for checking the accuracy of rise and fall in surveying.
34:31 Conclusion of Height of Collimation and Rise and Fall surveying.

[@timatata]

This video was made for people like me with no background. Sir i really do appreciate mostly on how to read the staff and filling the table. May God continue to lift you up

[@lewismirie7083]

30 mins video just summarised my whole semester.

[@collinsenoma3670]

Same here

[@Dane-o4t]

Summarize my full years in school

[@MercyCassie-n3o]

That’s right

[@maireboy]

Thanks for this video. I went in circles trying to understand this concept, and you did such a good job of breaking down in this video.

[@ochiengquinter6048]

Thanks for the video from Kenya 🇰🇪

[@nnlm7719]

Something I couldn't understand for years , just became simple in minutes..... Thank you

[@agneswambui6455]

Watching from Kenya....the best tutor ever....

[@pulikasapha2459]

This is the best tutorial on TH-cam 🥳 well explained

[@mistajay9017]

Hi Kelvin. This video "saved my life". I last did this at university almost 20 years ago and I am teaching this course to Architecture Technology students this year. You can imagine! Thank you very much. Your illustrations are clear and straight forward.

[@mqadi1682]

I think you should register your institution sir where it will take us 2 months to get our qualifications.....best tutor ever🎉

[@dooshimaaguh6816]

This video proudly gave me an "A" for d second time. 😅😅 Tank u Kelvin

[@cmscliff]

Watching from Zambia is video just made me understand the explanation that a so call land surveyor lecture here explained for 2hrs and yet no one understood 😅. Thank you 👏👏

[@TheRealAtomeec55.]

The best Tutorial I ever found..Frr🎉🔥🙌😊 Thanks Bro.

[@timothyoyidi4161]

This was very helpful
Definitely giving it a like

[@MarshaVanwyk]

Best🎉❤ lecturer ever❤

[@Panther-]

Wow thank you brother...this was the best explanation I saw so far.I feel its a concept which requires a thorough explanation.And even nearly all videos I saw did not explain what these headers like Fs Hoc and Rl mean in detail thanks

[@NalwaddaRose-rg5fl]

Thanks so much very productive in terms of learning

[@kerenkanzemwarabu]

May God bless you abundantly !!! this video is simple to understand and it's a dime

[@aarhin919]

best tutor . God bless you. your lecturing help me. i wish am close to you. by the way please load more videos on surveying for me especially basic level. because am beginner

[@pentarlearsi1446]

How I understood this I even don't know .. God bless you so much sir

[@yonasgebeyehu9880]

This is really the nice class which I ever get in surveying, Thanks man! In the future, I expect a lot!

[@MichaelNeatis-i7m]

Really useful, informative and well delivered. I was searching for a video on this subject and Kelvin covered it all excellently. Thanks.

[@tulipohambawerniza4245]

Very helpful and educative too.. God bless and much love from Namibia

[@collinsenoma3670]

Thank You Sir
This was a very helpful lecture
God Bless You

[@saiduakonneh889]

This site is very amazing and is helping cleared most of us doubt with respect to site surveying and congratulation for this knowledge shearing program. Regarding the first step for the last level calculation, please note that the reduce level is 86.846 instead of 88.846.

[@gynieeditz5681]

Tq from Malaysia🇲🇾🇲🇾

[@otiale1392]

Very best lecture... God bless you, impressive ❤

[@CorneliusMadikizela-em5ih]

Thankyou Sir Watching from South Africa.

[@kingolympio8688]

You really took your time to explain the concept

[@swirl._.3]

so much knowledge packed in this video

[@relaxedxlntsounds8361]

this video is just superb!

[@DeclaMonari]

best tutorial ever.thank you

[@JolaKay]

This was very well detailed! Well done!!

[@albaaqiy1160]

Thanks Thanks Sir what a excellent program, that's clear my concept absolutely again thanks.

[@richards_greatman]

Thank you so much for this value sir.
My exams is for today and you really made me ready.

[@allensibanda6930]

I respect this man thank you so much

[@etzswagzzo4202]

You are perfect sir

[@meticangu9106]

Very explicite and elaborative thank u sir

[@LowKey-h9j]

Thanks you so much my lovely brother ❤

[@tabben-s6e]

Thankyou so much sir,, watching from Kenya

[@hlalelemohale7296]

Thanks you saved me my brother, am a teacher!😊

[@phillipallsopp4376]

This is a great video. Very very easy to follow

[@DominoCreek]

Thank you Kelvin

[@ZackySullu]

very good explanation thanks much

[@IanTours-om4rw]

Well explained. Thanks watching from my home country vanuatu

[@shylinemutasa2454]

Yu rlly took your time to explain ..thnks brother

[@charlesmadison4391]

Wonderful. Thank you sir

[@TinasheTimer]

Yes sir u explained much better

[@JesseyMulbah]

I love your teaching

[@siyabonga2179]

That is a very nice explanation, Sir. Very Informative🔥

[@okoroafordave9329]

made it look so easy, grateful sir🙏

[@menzinkosi3425]

Thank you brother , this is very helpful 🙏🏽🙏🏽🙏🏽🙏🏽🙏🏽🙏🏽

[@Emmanuel-u8e]

God richly bless you

[@joelobeng5471]

You helped me 🙏🏿🙏🏿🙏🏿🙏🏿🙏🏿

[@JaphetLangat-g3j]

Perfect work

[@manuel07385]

Thank you sir

[@nurudeenalhassan]

It was very helpful ❤

[@suzzetserede]

Thank you so much sir ✌️✌️

[@Uwaky001]

You are doing great keep up

[@armstrongdoeansu5249]

excellent explanation. please add the adjustment and misclosure

[@karabosekele6732]

Thank you

[@makafuivictory6500]

Thank you sir, ❤

[@ebitegift8300]

Thank you sir. Very helpful

[@mujuniwycliff8501]

Thanks so much 🙏 💓 brother

[@brightmutoti3828]

This is great work Sir

[@mercynkya3731]

This help me alot
Thank You🙏🙏

[@asayilethindwa3209]

You are my favorite man 🎉❤

[@mcebotsabedze9848]

what a nice lesson

[@mustaphaceesay6792]

Well explained thank you sir 🙏 👏

[@justfaith495]

thought this was rocket science until now. thank you

[@NtlakuBaloyi]

Thanks Kelvin❤

[@ElyseMugisha-uy7et]

Thanks teacher

[@kofipeter6471]

Very very good continue boss

[@jamesvosena1931]

thanks

[@BelindaNsiah]

Wow you are special ❤

[@karabophakathi7382]

Please come and be a lecture to my school👌

[@napomokhethi7818]

Thank u, even my foreman couldn't explain

[@MudahigwaRonny-qr4du]

Very Gud thanks

[@HejjoConsults]

Sooo great a lecture

[@topeokuntade9189]

Please do a video on the use of theodolite

[@hankohanko2943]

ty from sudan

[@WafulaIsaac-w9t]

Explanation is ok

[@Geffajji]

Thanks 🙏

[@biliameensuleiman9006]

Thank you sir
Got d gist behind it
But my problem is how can we apply this onsite sir

[@KelvinAcademyYouTube]

I will explain in another video.

[@ochiengquinter6048]

Curve ranging in the field plus calculation please 🙏

[@melvintonde3678]

You are good😊

[@titusblair7533]

You just gave me an A in surveying

[@a1_ricki]

Bless

[@reaganbtw8771]

gold

[@bensonsandy2118]

Please do a video on open traverse calculations😢

[@ravirajesh9232]

Nice

[@TinasheTimer]

Good sìr

[@robertsisco6040]

mazee barikiwa

[@BlessTankeh]

Good morning. Please what if you are on a site where there's no building in the surrounding to locate the benchmark

[@KelvinAcademyYouTube]

Talk to a practicing surveyor in the area, or visit the engineering survey office of your local council. If there are no national established control points, then there will be Temporal Benchmarks or some sort of recognized secondary or tertiary control networks.

[@patrickessel3891]

please to have complete videos for beginners' i mean level 100 students cause i dont understand what what lecture is teaching
so if you have please leave link behind

[@ericklele]

Very good I want to know why do you get that obm number

[@zoehargreaves8442]

💪

[@murangiramaxima1332]

What is the difference while using Dumpy level?

[@MubarakIbrahim-yr6mx]

I want this lecture

[@albaaqiy1160]

Plz Plz TOTAL STATION ALSO START FOR OUR TEACHING, I NEED IT URGENTLY.