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A well of diameter 4 m is dug 21 m deep. The earth taken out of it has been spread evenly all around it in the shape of a circular rin g of width 3 m to form an embankment. Find the height of the embankment. CBSE Mathematics1 AnswerA well of diameter 4 m is dug 14 m deep. The earth taken out is spread evenly all around the well to form a 40 cm high embankment. Find the width of the embankment. Mathematics CBSE class 10 20151 AnswerA 21 m deep well with diameter 6 m is dug and the earth from digging is evenly spread to form a platform 27 m x 11 m. Find the height of the platform. Mathematics CBSE class 10 20151 AnswerAn earth embankment is to be constructed with compacted cohesionless soil. The volume of the embankment is 5000 m3 and the target dry unit weight is 16.2 kN/m3 . Three nearby sites (see figure below) have been identified from where the required soil can be transported to the construction site. The void ratios (e) of different sites are shown in the figure. Assume the specific gravity of soil to be 2.7 for all three sites. If the cost of transportation per km is twice the cost of excavation per m3 of borrow pits, which site would you choose as the most economic solution? (Use unit weight of water = 10 kN/m3 ) - gate civil 2017 1 AnswerThe curved surface area of a right circular cylinder of height 14 cm is 88cm2. Find the diameter of the base of the cylinder. CBSE class 9 Mathematics1 AnswerA toy is in the form of a cone of radius 3.5 cm mounted on a hemisphere of same radius on its circular face. The total height of the toy is 15.5 cm. Find the total surface area of the toy. Mathematics CBSE class 10 20171 AnswerA 10 mm deep cylindrical cup with diameter of 15mm is drawn from a circular blank. Neglecting the variation in the sheet thickness, the diameter (upto 2 decimal points accuracy) of the blank is _________ mm.1 AnswerA toy is in the form of a cone of base radius 3.5 c m mounted on a hemisphere of base diameter 7 cm. If the total height of the toy is 15 .5 cm, find the total surface area of the toy. CBSE Mathematics1 AnswerA tapered circular rod of diameter varying from 20 mm to 10 mm is connected to another uniform circular rod of diameter 10 mm as shown in the following figure. Both bars are made of same material with the modulus of elasticity, E = 2x105 MPa. When subjected to a load P = 30π kN, the deflection at point A is _______________ mm. - gate civil 2017 1 AnswerFind the total surface area of the vessel. Mathematics CBSE class 10 20131 AnswerIf the circumference of the circular field is 121 cm .Tehn find the diameter of the field. CBSE class 9 Mathematics1 AnswerIn the Fig PQ is a tangent at a point C to a circle with centre O. if AB is a diameter and ∠CAB = 30°, find ∠PCA. Mathematics CBSE class 10 20161 AnswerThree semicircles each of diameter 3 cm, a circle of diameter 4.5 cm and a semicircle of radius 4.5 cm are drawn in the given figure. Find the area of the shaded region. Mathematics CBSE class 10 20171 AnswerA circular steel bar of diameter 10 mm is bent into the shape as shown in figure and lies x z plane A horizontal force P applied along positive direction The yield strength 200 MPa Neglecting effect transverse shear load Newton required to initiate yielding per maximum stress theory failure is : up two decimal places..0 AnswerThe width of a square footing and the diameter of a circular footing are equal. If both the footings are placed on the surface of sandy soil, the ratio of the ultimate bearing capacity of circular footing to that of square footing will be (GATE-CIVIL-Engg-2018)1 Answer The radius of the base and the height of a solid right circular cylinder are in the ratio 2 : 3 and its volume is 1617 Cu. cm. Find the total surface area of the cylinder. CBSE Mathematics1 AnswerCurved surface area of a right circular cylinder is 4.4m2. If the radius of the base of the cylinder is 0.7m, find its height. CBSE class 9 Mathematics1 Answer The radius of the base and the height of a solid r ight circular cylinder are in the ratio 2 : 3 and its volume is 1617 Cu. cm. Find the total surface a rea of the cylinder. CBSE Mathematics1 AnswerThe surface area of a solid metallic sphere is 616 cm 2 . It is melted and recast into a cone of height 28 cm. Find the diameter of the base of the cone so formed. CBSE Mathematics1 Answer The rain water from a roof 22 m x 20 m drains into a cylindrical vessel having diameter of base 2 m and height 3.5 m. lithe vessel is just full, find the rainfall in cm. CBSE Mathematics1 Answer