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1) The radius of the base of cone is 3 cm and height is 4 cm. Find the volume of the cone? a. 12 π cm3 b. 6 π cm3 c. 8 π cm3 d. 10 π cm3
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2) Find the ratio of the curved surfaces of two cylinders of same heights if their radii are in the ratio 1:2. a. 1:2 b. 2:1 c. 1:4 d. 4:1
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3) Two cylinders are of the same height. Their radii are in the ratio 1: 3. If the volume of the first cylinder is 40 cc. Find the volume of the second cylinder? a. 360 cc b. 60 cc c. 300 cc d. 36 cc
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4) Find the expenditure on digging a well 14m deep and of 3m diameter at Rs.15 per cubic meter? a. Rs.1185 b. Rs.1285 c. Rs.1385 d. Rs.1485
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5) The radius of a cylindrical vessel is 7cm and height is 3cm. Find the whole surface of the cylinder? a. 308 sq cm b. 220 sq cm c. 440 sq cm d. 132 sq cm
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6) The diameter of a cylindrical tin is 6cm and height is 5 cm. Find the volume of the cylinder? a. 30 π cc b. 45 π cc c. 150 π cc d. 180 π cc
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7) The spherical ball of lead 3 cm in diameter is melted and recast into 3 spherical balls. The diameters of two of these are 1 ½ cm and 2 cm respectively. The diameter of third ball is? a. 2.66 cm b. 2.5 cm c. 3 cm d. 3.5 cm
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8) If a solid sphere of radius 10 cms is moulded into 8 spherical solid balls of equal radius, then surface area of each ball (in cm2) is________? a. 100π b. 7π c. 60π d. 50π
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9) The areas of the two spheres are in the ratio 1: 4. The ratio of their volume is? a. 1:4 b. 1:16 c. 1:8 d. 1:64
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10) The volumes of two cubes are in the ratio 27: 125, what shall be the ratio of their surface areas? a. 6:25 b. 3:5 c. 9:25 d. 16:25
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