Mensuration 3D Quiz 2 1. The radius and depth of a square well is 5 m and 21 m respectively.what is the volume of the earth dug out?A. 312 m^3B. 412 m^3C. 672 m^3D. 912 m^3 2. The radius and height of a cylinder is 50 cm and 100 cm.What is the ratio of total surface area to lateral surface area of a cylinder?A. 3:2B. 5:6C. 4:3D. 2:1 3. If the radius of the base of a right circular cylinder is halved,keeping the height same, what is the ratio of the volume of the reduced cylinder to that of the original one?A. 3:2B. 1:5C. 5:6D. 1:4 4. The radius of the cylinder piece of a metal is 2 cm and height is 6 cm is shaped into a cone of same radius.The height of the cone isA. 15 cmB. 16 cmC. 18 cmD. 20 cm 5. A cone and a sphere is having Equal radius and volume.The ratio of the diameters of the sphere to the height of the cone isA. 1:2B. 2:3C. 3:4D. 3:2 6. How many bricks,each measuring 10 cm x 25 cm x 50 cm, will be needed to build a wall 10m x 6m x 1m?A. 1000B. 2000C. 4000D. 4800 7. If the radius of the sphere is 5 cm .Find the Surface area of the sphere ?A. 345.67 cm^2B. 432.90 cm^2C. 314.28 cm^2D. 456.78 cm^2 8. The radius of the iron sphere is 5 cm is drawn into a wire of diameter 6mm.find the length of the wire?A. 12.5 mB. 55.5 mC. 13.7 mD.45.6 m 9. The curved surface of a right circular cone of height 12 cm and radius is 5 cm is:A. 204.1 cm^2B. 304.2 cm^2C. 212.7 cm^2D. 643.7 cm^2 10. A cone and hemisphere have equal base and height.What is the ratio of their curved surfaces will be:A. 2:1B. 3:2C. √2:1D. √3:1 11. The amount concrete to required to build a concrete cylindrical pillar whose base has a perimeter 8.8 m and whose curved surface area is 17.6 sq.m isA. 12.32 m^3B. 13.43 m^3C. 14.56 m^3D. 9.724 m^3 12. The vertical height and volume of a right circular cone is 24 cm and 1232 cm^3 ,Then the area of the curved surface isA. 150 cm^2B. 450 cm^2C. 165 cm ^2D. 550 cm ^2 13. The dimensions of cube are 12m x 10m x 7 m ,then what is the volume of the cube isA. 540 m^3B. 640 m^3C. 840 m^3D. 440 m^3 14. The volume of the sphere that can be cut off from a cylindrical log of wood of base radius 3 cm and height is 5 cm isA. 100 cm^3B. 120 cm^3C. 104 cm^3D. 113.04 cm^3 15. A solid sphere of radius of 6 cm is lowered into the water until it is completely immersed into a cylindrical vessel of radius 3 cm contains water.The water level in the cylinder raised byA. 12/7 cmB. 16/3 cmC. 13/5 cmD. 15/7 cm Related posts: Mensuration – 2D Quiz 1 Mensuration 3D Quiz -1