Ethio Construction Engineering
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๐Ÿ”จ World Construction Engineering
Latest updates, tips, and tutorials on building, civil engineering, and construction in World.
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3080. How is the fineness of cement measured?
Anonymous Quiz
22%
(a) Volume/Mass
55%
(b) Mass/Volume
14%
(c) Mass/Area
9%
(d) Area/Mass
โค5๐Ÿ™3
3074. S etting time of cement decrease by reducing
Anonymous Quiz
35%
(a) gypsum
28%
(b) calcium chloride
26%
(c) hydrogen peroxide
11%
(d) sodium oxide
๐Ÿ‘5
3055. Process of taking levels on each side of a main line at right angles to that line is called
Anonymous Quiz
22%
(a) Differential levelling
40%
(b) Cross-section levelling
30%
(c) Profile levelling
9%
(d) Reciprocal levelling
โค5
3039. Which line is perpendicular to the horizontal surface?
Anonymous Quiz
12%
(a) Level line
13%
(b) Horizontal line
20%
(c) Datum line
55%
(d) Vertical line
๐Ÿ”ฅ3๐Ÿ‘2
2975. A basic type of failure at a finite slope may occur due to
Anonymous Quiz
46%
(a) Slope failure and Base failure
25%
(b) Toe failure
6%
(c) None of the mentioned
23%
(d) All of the mentioned
๐Ÿ‘Œ5โค2
2973. A long natural slope of cohesion-less soil is inclined at 12ยฐ to the horizontal. What will be the factor of safety of the slope if ฯ† = 30ยฐ?
Anonymous Quiz
28%
(a) 1.6
38%
(b) 2.7
20%
(c) 0.13
13%
(d) 0.4
๐Ÿ‘4โค1
2972. If the soil properties for all identical depths below the surface are constant, it is a
Anonymous Quiz
38%
(a) Finite slope
24%
(b) Infinite slope
20%
(c) Planar failure surface
18%
(d) All of the mentioned
๐Ÿ™3
2959. Compaction is a process in which change in volume due to
Anonymous Quiz
9%
(a) Remove of Water
48%
(b) Remove of Air
4%
(c) Remove of Soil Particles
39%
(d) All of the Above
๐Ÿ‘3โค2
2927. By providing sufficient edge distance, which of the following failures of bolted joint can be avoided?
Anonymous Quiz
22%
(a) Tension failure of the plate
27%
(b) Shear failure of the bolt
34%
(c) Shear failure of the plate
17%
(d) Bearing failure of the bolt
โค2๐Ÿ‘2
๐Ÿ‘‰How Many Blocks Are Required for 1 mยฒ Wall Area?

๐Ÿ’ซLet's explain how to calculate the number of concrete blocks needed to build a 1 square meter wall using standard block dimensions.

๐Ÿ”น Block Size
Each block measures:
400 mm length (0.40 m)
200 mm height (0.20 m)
200 mm width (0.20 m)

๐Ÿ”น Area Covered by One Block
Area = 0.40 m ร— 0.20 m
= 0.08 mยฒ per block

๐Ÿ”น Wall Area
A 1 m ร— 1 m wall has an area of 1.00 mยฒ

๐Ÿ”น Number of Blocks Required
1.00 mยฒ รท 0.08 mยฒ
= 12.5 โ‰ˆ 13 blocks

โœ… Final Answer
To construct 1 mยฒ of wall area, you need 13 concrete blocks of size 200 ร— 200 ร— 400 mm.

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โค22
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#แ‰ดแˆแˆญแ•แˆฎแแˆญแ‰ฒแˆต #แŠฅแАแˆ†_แŠ แ‹ฒแˆตแˆณแ‹ญแ‰ต

๐Ÿ“ แˆณแˆญ แ‰คแ‰ต
#แ‰ 35%แ‰…แŠ“แˆฝ! (แ‰ 100% แŠญแแ‹ซ)
๐Ÿ‘‰ แ‰ฃแˆˆ 2 แˆ˜แŠแ‰ณ = 81แŠซแˆฌ = 6แˆšแˆŠแ‹ฎแŠ•
๐Ÿ‘‰ แ‰ฃแˆˆ 2 แˆ˜แŠแ‰ณ = 106แŠซแˆฌ = 7.9แˆšแˆŠแ‹ฎแŠ•
๐Ÿ‘‰ แ‰ฃแˆˆ 3 แˆ˜แŠแ‰ณ = 153แŠซแˆฌ = 11.4แˆšแˆŠแ‹ฎแŠ•

#แ‰ 20% แ‰…แ‹ตแˆ˜ แŠญแแ‹ซ (แ‰ แŒแŠ•แ‰ฃแ‰ณ แˆ‚แ‹ฐแ‰ต แˆˆแˆšแŠจแแˆ‰)
๐Ÿ‘‰ 81แŠซแˆฌ = แˆ™แˆ‰ แŠญแแ‹ซ = 9.3แˆšแˆŠแ‹ฎแŠ•
                 แ‰…แ‹ตแˆ˜ แŠญแแ‹ซ = 20% (1.8แˆšแˆŠแ‹ฎแŠ•)
๐Ÿ‘‰ 139แŠซแˆฌ = แˆ™แˆ‰ แŠญแแ‹ซ = 15.9แˆšแˆŠแ‹ฎแŠ•
                 แ‰…แ‹ตแˆ˜ แŠญแแ‹ซ = 20% (3.1แˆšแˆŠแ‹ฎแŠ•)

๐Ÿ“ แŠ แ‹‹แˆฌ
#แ‰ 35%แ‰…แŠ“แˆฝ! (แ‰ 100% แŠญแแ‹ซ)
๐Ÿ‘‰ แ‰ฃแˆˆ 1 แˆ˜แŠแ‰ณ = 78แŠซแˆฌ = 5.5แˆšแˆŠแ‹ฎแŠ•
๐Ÿ‘‰ แ‰ฃแˆˆ 3 แˆ˜แŠแ‰ณ = 117แŠซแˆฌ = 8.3แˆšแˆŠแ‹ฎแŠ•
๐Ÿ‘‰ แ‰ฃแˆˆ 3 แˆ˜แŠแ‰ณ = 145แŠซแˆฌ = 10.3แˆšแˆŠแ‹ฎแŠ•

#แ‰ 20% แ‰…แ‹ตแˆ˜ แŠญแแ‹ซ (แ‰ แŒแŠ•แ‰ฃแ‰ณ แˆ‚แ‹ฐแ‰ต แˆˆแˆšแŠจแแˆ‰)
๐Ÿ‘‰ 78แŠซแˆฌ = แˆ™แˆ‰ แŠญแแ‹ซ = 8.5แˆšแˆŠแ‹ฎแŠ•
                 แ‰…แ‹ตแˆ˜ แŠญแแ‹ซ = 20% (1.7แˆšแˆŠแ‹ฎแŠ•)
๐Ÿ‘‰135 แŠซแˆฌ = แˆ™แˆ‰ แŠญแแ‹ซ = 14.8แˆšแˆŠแ‹ฎแŠ•
                 แ‰…แ‹ตแˆ˜ แŠญแแ‹ซ = 20% (2.9แˆšแˆŠแ‹ฎแŠ•)

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