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Addis Ababa, Ethiopia Con-Site is a Comprehensive Construction Filed Works and Materials Reference Catalogue for Architects, Engineers, Consultants and Customer service. t.me/ConsitesolutionBot ☜|]Comments Construction Solution Official Service
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የውሃ ጋኖች (water supply Reservoir)የውሃ ጋኖች ከጥቅማቸው አንፃር ለ ሶስት (3) ይከፈላሉ;- 1-Collector reservoir 2-Service reservoir 3-Supply reservoir ናቸው እያንዳንዱ ጥቅማቸው ምንድነው? 1. [Collector reservoir ] ይህ የጋን አይነት ዋና ስራው ውሃው ከሚመነጭበት (የገጸ ምድር ወይም የከርሰ ምድር ውሃ) ቦታ ህክምና ከተደረገለት በኋላ የሚቀመጥበት ጋን ነው፡፡ ጥቅሙ የተሰበሰበውን ውሃ ወደተለያዩ ጋኖች እስኪሰራጭ በጊዜያዊነት እንዲቀመጥና ውሃው ለጋኖቹ እንዲደርስ የሚያደርገውን ጉልበት እንዲያገኝ ይረዳዋል፡፡ ብዙን ጊዜ ውሃው ከሚመነጭበት ቦታ አቅራቢያ ይተከላል፡፡ ውሃ ፈሳሽ እንደመሆኑ ብዙን ግዜ ሚፈልቀው ከፍታቸው ካነሱ ቦታዎች ስለሆነ ከሌሎች ጋኖች ይልቅ የዚህ ጋን ከፍታ (elevation) ያንሳል፡፡ 2. [Service reservoir] ይህ የጋን አይነት በቋሚነት ከcollecter reservoir የተቀበለውን ውሃ የሚያርፍበት ነው፡፡ አሰራሩም ከሌሎቹ ጋኖች ለየት ይላል ፡፡ ውሃው የሚያደርስበትን ግፊት ለመቋቋም የሚያስቸለውን መካች ጉልበት (reaction force) በበቂ ሁኔታ እንዲኖረው ይደረጋል፡፡ በቁመትም በመጠንም ትልቅ ነው፡፡ ወጪ ለመቀነስ ከፍ ካለ ቦታ ይተከላል (ውሃ በ3 አይነት መንገድ ይከፋፈላል:- 1-የሞተር ሀይልን በመጠቀም 2-የመሬት የመሳብ ሃይልን (gravity force) በመጠቀም 3-የሞተር ሃይልንና የመሬት የስበት ሃይልን በማጣመር በመጠቀም እንዲሰራጭ ይደረጋል በአሁን ጊዜ ሶስተኛው አማራጭ በስፋታ አገልግሎት ላይ ይውላል ይህ አማራጭ ከወጪም አንፃር በጣም ተመራጭ ነው ለዚህ ዘዴ ተመራጩ ደግሞ የservice reservoir ከፍ ካለ ቦታላይ መተከል ወሳኝነት አለው፡፡ ከዚህ ጋን ቀጥታ ለስርጭት ቧንቧ አይገጠምም ምክንያቱም ከጋኑ የሚወጣው ውሃ ከፍተኛ ጉልበት ስላለው የማሰራጫ ቱቦዎችን ሊያፈነዳ ይችላል፡፡ ይህን ችግር ለመፍታት ቀጣዩን የጋን አይነት መገንባት አስፈላጊ ነው፡፡ 3.[Supply reservoir] የዚህ ጋን ዋና ጥቅም ውሃውን ለስርጭት ወደ ስርጭት ቱቦዎች እንዲገባ ማድረግ ነው፡፡ ከላይ እንደጠቀስኩት ከሰርቪስ ጋን ቀጥታ ወደ ስርጭት ቧንቧ ውሃ አይገባም ምክንያቱም ከፍተኛ ሀይል ስላለው የቧንቧዎቹን የመቆየት አቅም ያሳጥራል ብሎም እስከ ማፈንዳት ያደርሳል፡፡ ይህ እንዳይከሰት የሳፕላይ ጋኖች ይገነባሉ፡፡ ይህ ጋን በቱቦዎቹ የሚያልፈውን ውሃ ግፊት በመቀነስና ፈጥነቱን (velocity) ከ 0.5-2 m/s በማድረግ እና ወደ ቱቦዎቹ የሚገባን ሃይል በመቀነስ (Energy dissipate ) ቱቦዎቹ ላይ የሚደርሰውን ጉዳት ያስወግዳል፡፡ ይህ ጋን ከፍ ባለ ቦታ ይተከላል ነገር ግን ከፍታው ከService reservoir ያነሰ ነው። እናመሰግናለን!🤚
No.15🔺equation?❓
The term _ is used to denote the finishing of mortar joints of either stone or brick masonry.
🔺.. .የቀጠለ ጥያቄ?❓ ያንብቡ! 🤚ሰናይ ምሽት! ለጓደኞቻችሁ' ያጋሩ!Q11. What’s the slope of Staircase? answer:- As per IS 456, the slope or pitch of stair should be between 25 degrees to 40 degrees. Q12. What do you mean by the moment of inertia? answers:- A quantity expressing a body’s tendency to resist angular acceleration, which is the sum of the products of the mass of each particle in the body with the square of its distance from the axis of rotation. Q13. What is a crank length in the slab? answers:- The crank length in Slab is 0.42 D. Where D is Depth of Slab- Top cover – Bottom Cover. Q14. What are the types of a slump? answer:- 1. True Slump: The concrete mass after the test when slumps evenly all around without disintegration is called the true slump. 2. Shear Slump: When one-half of the concrete mass slide down the other is called the shear slump. This type of slump is obtained in a lean concrete mix. 3. Collapse Slump: When the sample is collapsed due to adding excessive water, it is known as collapse slump. 4. Zero Slump: For very stiff or dry mixes it does not show any changes of the slump after removing the slump cone. Q15. What is grouting? answers:- Grout is a fluid form of concrete which is used to fill the voids. Q16. • • • ጥያቄዎቻችንን? ይቀጥላሉ.. . ሁሌም ማታ ምሽት ላይ 2:30 ይጠብቁ! በቋሚነት አዘጋጅተን እናቀርባለን! ቻናሉን አጋሩ! Share🛜ይደረግ/join አስደርጉ! @Con_site 🏗⬅️➡️
CIVIL ENGINEERING INTERVIEW QUESTIONS:-🏗1. What is bending moment (BM) & Shear force (SF) – Explain. 2. What are the steps involved in the concreting process, explain? 3. Describe briefly the various methods of concrete curing? 4. What is the minimum curing period? 5. What Do You Understand by M25 Concrete? 6. What is Water-Cement Ratio and How it is related to the strength of concrete? 7. What is a bearing capacity of soil? 8. How to increase the bearing capacity of soil? 9. What are the different types of foundation? 10. Explain moment of inertia and its importance. 11. How do we determine the specific gravity of a cement? 12. Density Of 1 cum cement? 13. What are the causes of building collapse? 14. What is bar bending schedule (BBS) & how to prepare it? 15. Why is concrete cube test carried out? 16. Why is concrete slump test carried out? 17. What is bleeding, segregation, honeycombing of concrete?
እናመስግናለን! እያበረታታችሁን ላላችሁ!👆
ለማንኛውም ጥይቄ እና አስትየት
በተጨማሪ ይጠቀማል የምትሉትን
ፃፉልን/ላኩልን- Comment 👈🖥
እኛም ገምግመን፣ መልሰን ቻናሉ ላይ
ለእናተ ፖስት እናደርገዋለን!
Things Site Engineers Must Know About Reinforcement and
Steel Bars
Clear cover to main reinforcement
Footings : 50 mm
Raft foundation Top : 50 mm
Raft foundation Bottom/ sides : 75 mm
Strap Beam : 50 mm
Grade Slab : 20 mm
Column : 40 mm (d>12mm) 25 mm (d= 12mm)
Shear Wall : 25 mm
Beams : 25 mm
Slabs : 15 mm or not less than diameter of the bar.
Flat Slab : 20 mm
Staircase : 15 mm
Retaining Wall on Earth : 20/ 25 mm
Water retaining structures : 20 / 30 mm
Sunshade (Chajja) : 25 mm
Hook for stirrups is 9D for one side
No. of stirrups = (clear span/Spanning) + 1
For Cantilever anchorage length for main steel is 69D
“L” for column main rod in footing is minimum of 300mm
Chairs of minimum 12 mm diameter bars should be used.
Minimum diameter of dowel bars should be 12 mm.
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