:: Building Materials
1.  In a mortar, the binding material is
A. cement
B. sand
C. surkhi
D. cinder.
Answer: Option A

2. Lacquer paints
A. are generally applied on structural steel
B. are less durable as compared to enamel paints
C. consist of resin and nitro-cellulose
D. contain alcohol as thinner
E. all the above.
Answer: Option E


3.  Wrought iron contains carbon upto
A. 0.25%
B. 1.0%
C. 1.5%
D. 2%.
Answer: Option A


4. Pick up the polymineralic rock from the following:
A. Quartz sand
B. Pure gypsum
C. Magnesite
D. Granite
E. None of these.
Answer: Option D


5. Pick up the correct statement from the following:
A. For thin structures subjected to wetting and drying, the water cement ratio should be 0.45
B. For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55
C. For thin structures which remain continuously under water, the water-cement ratio by weight should be 0.55
D. For massive concrete structures which remain continuously under water, the water cement ratio by weight should be 0.65
E. All the above.
Answer: Option E

6. Ultimate strength to cement is provided by
A. Tricalcium silicate
B. Di-calcium silicate
C. Tri-calcium aluminate
D. Tetra calcium alumino ferrite.
Answer: Option B

7. Elastomers can extend upto
A. five times their original dimensions
B. seven times their original dimensions
C. ten times their original dimensions
D. three times their original dimensions.
Answer: Option C

8.  Bitumen felt
A. is used as water proofing material
B. is used as damp proofing material
C. is made from bitumen and hessian fibres
D. all the above.
Answer: Option D


9. In the method of condensation polymerization,
A. low-molecular substances are removed from the high molecular substance
B. the reaction proceeds with an evolution of ammonia
C. the reaction proceeds with an evolution of hydrogen chloride
D. all the above.
Answer: Option D


10. In the cement the compound quickest to react with water, is
A. Tricalcium aluminate
B. Tetra-calcium alumino-ferrite
C. Tricalcium silicate
D. Dicalcium silicate.
Answer: Option A



If there is correction put your answer on discussion group.

@engineersWorks

Choose the answer and show the solution , us discussion group @engineersWorks


1. For exerting a pressure of 4.8 kg/cm2, the depth of oil (specific gravity 0.8), should be

[A]. 40 cm
[B]. 41 cm
[C]. 56 cm
[D]. 60 cm

[E]. 76 cm.

We sending the answer today at 1:00 🕐 night. Trying to answer it @engineersWorks


👇👇👇👇👇👇👇👇👇👇
👈🏻Here, it is converted it in newton by multiplying 10.

👈🏻Another way to do it is, 1st convert 4.8kg/cm2 into kg/m2 by multiplying it with 10000.

👈🏻Ten again multiply by 10 to get in N/m2, then find out the specific weight.

👉8 * 1000 * 10 now divide 480000/8000.

You will get 60 as an answer.✔️✔️✔️

Roundabout of circular intersection

Roundabout of circular intersection

Roundabout of circular intersection

👉ስለ ብሎኬት
⏩Hollow Concret Block (HCB) ወይም የግድግዳ ብሎኬት/Wall HCB/ በመባል ይታወቃል።
*የብሎኬት ምርት ሲደረግ ጠቀሜታው ለሁለት ጉዳይ ነው
1. ሸክም መቌቌም የሚችል/Load Bearing/
2. ሸክም መቌቌም የማይችል /Non-Load Bearing/
*ይሄንን መሰረት ያደረገም የደረጃ ክፍፍል/Class/ ይኖራቸዋል።
*ሸክም መቌቌም የሚችሉት ብሎኬቶች "ክላስ ኤ እና ቢ" /
Class A and B/ በመባል ሲመደቡ ሸክም መቌቌም
የማይችሉት የብሎኬቶች ደግሞ "ክላስ ሲ" /Class C/ በመባል
ይመደባሉ።
➡ብሎኬት በተለምዶ በመጠናቸው ባለ10፣ ባለ15 እና ባለ 20 በመባል ይለያሉ::
ርዝመት x ስፋት x ቁመት/ Length x width x depth/
ማለትም Standard Dimenssion
*40x20x20cm
*40x15x20cm
*40x10x20cm
➡እያንዳንዱ ብሎኬት ሸክም የመቌቌም አቅማቸው
በሜጋ ፓስካል(Mpa) ይለካል ከዚህ በላይ 👆 በምስል አስደግፈናል።
*Note:
1 kilogram per square centimetre = 0.0981 mega pascal

*Class A=3.8mpa
*Class B=3.2mpa
*Class C=1.8mpa
. @engineer03
⚡ለሁሉም እንዲዳረስ ፖስቶቹን SHARE አድርጉልን።
t.me/engineer03

👉ፎርምወርክ/Formwork/
➡በምን ያህል ቀን ማፍረስ ይቻላል?👇
.
⏩ ለቌሚ ፎርምወርክ 16ሰዓት
⏩ ለወለል እና ደረጃ /ሶሌታ/ ፎርምወረክ 21 ቀን
⏩ ተጨማሪ ለቢም/beam/ እና ወለል/slab/ ድጋፍ የሚገባ
14ቀን
⚡ የፎርም ወርክ ክፍያን በተመለከተ ባትኮዳ/Batcoda/ ከዚህ በታች የተዘረዘሩትን ነጥቦች ይጠቅሳል።
1. ከ 0.25ካ.ሜ በታች የሆነ ክፍት/opening/ ፎርሞርክ ክፍያ
ላይ ሊቀነስ አይገባም።
2. በተለየ ሁኔታ ካልተጠቀሰ በስተቀር በካ. ሜ ሊለካ ይገባል።
3. የወለል ጠርዝ፣ የደረጃ መወጣጫ እና የጎን ፎርምወረክ
ጥልቀቱን በመጥቀስ በሜትር ሊለኩ ይገባል።
.
🚩ለሁሉም እንዲዳረስ ፖስቶቹን SHARE አድርጉልን።

t.me/engineer03

👉የአርማታ ብረት በሜትር ምን ያህል ይመዝናል? @engineer03
.
⏩ለኮንስትራክሽን ግብዐት የምንጠቀማቸው የአርማታ ብረት በቅርፃቸው በሁለት ይከፈላሉ
1. ልሙጥ ብረት(Mild Steel or plain rebar)
2. ባለ ክርክር/አርማታ ብረት(Deformed steel rebar)
➡በጥንካሬ ደረጃ ደግሞ በስፋት Grade 60 እና Grade 40
በመባል ይለያሉ ይህም ውጥረታዊ ሀይል/tensile strength/ በመቌቌም አቅማቸው ነው።
*Grade 40=275.79MPa yield strength ሲኖረው
*Grade 60=413.68MPa yield strength ይኖረዋል።
.
ለሁሉም እንዲዳረስ ፖስቶቹን SHARE አድርጉልን።
👇👇👇👇👇
Join for more updates via the link below;
t.me/engineer03
👆👆👆👆👆

▶️አዲስ አበባ ሸገር አዱ ገነት❤️
፡
🙏ወብ ምሽት ተመኘን😍
፡
⚡ቻናላችን Join በማረግ እና ለጓደኛዎ እና ለሚያቁት ሁሉ ሼር ያድርጉ። እናመሰግናለን!

GATE Questions & Answers

ገራሚ ገራሚ ጥያቄዎችን ከእነ አሰራራቸው👏👏👏👏👏 ለሌሎችም ሼር ያድርጉላቸው

Join us
👇👇👇
@quation
@quation

👇👇👇👇ይቀጥላል
.
.
.
.
.የምትፈልጉትን መረጃ በ @engineersWorks ላይ አስቀምጡ! ጓደኛቻችሉን ከግሩፑ አድ ማድረጋችሁን አስታውሱ::

.
.
.
.
በውስጥ ስመር ጥያቂ እንዲላክላችሁ ያናገራችሁን ቤተሰቦቻችን የምትፈልጉትን specific ማድረግ አለባችሁ::
.
.
. 50 ጓደኛቹን add ያደረገ እጂግ ጠቃሚ መረጃ በውስጥ መስመር ይላክለታል::
👇👇👇👇👇👇
@engineersWorks
@engineersWorks
@engineersWorks

🐓🐏እንኳን ለበርሃነ ልደቱ በሰላም አደረሳችሁ
❄️❄️መልካም የገና በዓል!

@engineer03

✔The planning and construction requirements of Buildings.
🗣 Strength and stability
🗣 Durability
🗣 Dampness resistance
🗣 Fire resistance
🗣 Heat insulation
🗣 sound insulation
🗣 protection against termite attack
🗣 security against burglary
🗣 lightining and ventilation
🗣 comforts and covinence
🗣 Economy..etc
Share with your friends

⬇️⬇️⬇️⬇️⬇️ Geotechnical Engineering