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MCQ
221. The degree of saturation for fully saturated soil is- [MOCA-19]
ব্যাখ্যা: Full saturated soil-এর Degree of saturation Sr = 1 বা 100%
0.25
0.75
1
0.50
222. The failure of foundation of a building is due to-[BB-20]
ব্যাখ্যা: There are many causes the failure of foundation such as- •Poor drainage include short down spouts, clogged gutter, or lack of waterproffing. •Weather conditions. •Poor soil conditions. •Poor building site and ground prepration.
lateral escape of the supporting material
withdrawal of subsoil moisture
unequal settlement of soil
all of the above
223. The performance of the soil, when used for pavement construction is found out by using-.[BB-20]
ব্যাখ্যা: As group index is a mean of rating the value of soil as a sub-grade material. It can be used for finding the performance and quality of the soil.
quality test
material test
group index
none of the mentioned
224. মৃত্তিকার আনকনফাইন্ড কম্প্রেসিভ স্ট্রেংথ, শিয়ার স্ট্রেংথের কত গুণ হয়?
ব্যাখ্যা: ভূগর্ভস্থ মাটির উদঘাটন গভীরতা লোডযুক্ত ক্ষেত্রফলের প্রস্থ 1.5-2 গুণ ধরা হয়।
৩ গুণ
২ গুণ
৫ গুণ
৪ গুণ
225. The ratio of the volume of voids to the total volume of soil mass is called- [MOD-20]
water content ration
void ratio
porosity
degree of saturation
226. The property of soil mass which permits the seepage of water through its interconnecting voids is called-. [MOD-20]
ব্যাখ্যা: Soil permeability is the property of the soil to transmit water and air and is one of the most important qualities to consider for fish culture. A pond built in impereable soil will loss little water through seepage. The more permeable the soil, the great the seepage.
capillarity
porosity
permeability
none
227. Effective stress on soil- [BB-20]
ব্যাখ্যা: Effective stress on soil also increases the rate of compression of soil. It controls a soil's volume change and strength.
increases voids ratio and decreases permeability
increases both voids ratio and permeability
decreases both voids ratio and permeability
decreases voids ratio and increases permeability
228. The maximum size of the particles of clay is about- [MOCA-19]
ব্যাখ্যা: কণার আকার <0.002mm হলে কাদামাটি হিসাবে শ্রেণিবদ্ধ করা হয়।
0.0002mm
0.02mm
0.002mm
0.2mm
229. ভূ-স্তর উদঘাটনের ধাপ কয়টি?
ব্যাখ্যা: ভূত্তর উদঘাটনের ধাপ তিনটি, যথা- (i) মাটির তথ্যসংগ্রহ ও পরিদর্শন (ii) প্রারম্ভিক উদঘাটন (iii) বিস্তারিত।
১টি
৩টি
৪টি
৫টি
230. The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called- [HED-19]
ব্যাখ্যা: The specific gravity of an object is the ratio between the density of an object to a reference liquid. Usually our reference liquid in water, which has a density of 1g/ml. or 1g/cm³
Density of liquid
Specific gravity of liquid
Compressibility of liquid
Surface tension of liquid
231. The degree of saturation for the moist soil isabout- [MOD-20]
0%
25 to 50%
1 to 25%
50 to 75%
232. A soil sample has porosity of 30%. Its voids ratio in the loosest and densest state is 0.35 and 0.92 respectively. What will be its density index? [BB-20]
ব্যাখ্যা: Given data, emin = 0.35 emax = 0.92 Id = ? n = 30% n=e/(1+e) So, e=0.428 We know that, Id = (emax-e)/(emax-emin) (0.92-0.428)/( 0.92-0.35 ) = 0.863 = 0.861
0.865
0.872
0.861
0.881
233. ট্রাই-অ্যাক্সিয়াল টেস্টে বিকৃতির মাত্রা সর্বাধিক কত ধরা হয়?
25%
27%
20%
30%
234. During plate load test, the loading to the test plate is applied with [BB-20]
ব্যাখ্যা: The bearing plate used varies in size from 300 to 750mm with a chequered bottom. The loading to the test plate may be applied with the lelp of a hydraulic jak. The reaction of the hydraulic jack may be borne by either any of gravity loading method or reaction truss method.
fluid tube
hydraulic jack
sand bags
cross-joists
235. কংক্রিটের বাঁধের জন্য কমপক্ষে কত মিটার পর পর বোরহোল করতে হয়?
২০ থেকে ৪০ মিটার
৩০ থেকে ৬০ মিটার
৪০ থেকে ৮০ মিটার
৫০ থেকে ১০০ মিটার
236. Water content = 15%, Sp. gravity = 2.5, Void ratio = 0.5, Degree of Saturation =? [MOLE-19]
ব্যাখ্যা: Sr = Grω/e Sr=2.5x0.15 x100/0.5 =75%
75%
50%
60%
80%
237. If a soil sample have porosity value 0.45 what will be the void ratio? [MOD-20]
ব্যাখ্যা: Porosity, n = e/(1+e) ⇒0.45=/(1+e), e=0.45(1+e) ⇒ e = 0.82
0.82
0.31
1.22
0.41
238. The relation between porosity N and void ratio(e) is given by- [MOCA-19]
n=(1+e)/e
n=e/(1+e)
e=n/(1-n)
e=(1-n)/n
239. 0.4 হেক্টর জায়গার উপর প্রস্তাবিত ইমারতের জন্য সাধারণত কয়টি বোরহোল করতে হয়?
৫টি
৭টি
৬টি
১০টি
240. The unit weight of soil mass is also called- [MOCA-19]
ব্যাখ্যা: Dry density of a soil is the ratio of total dry mass of soil to the total volume of soil. Dry density is related to the degree of compaction of soil mass.
dry density
bulk density
mass specific gravity
bulk specific gravity