Mensuration 3D Quiz 5 March 28, 2012 by kumar Leave a Comment 1.How many revolutions will it make in travelling 22 kilometres,if the radius of the circular wheel is 1 3/4 metres? A. 1800B. 1600C. 1900D. 1200 2. The volume of the cone decreased by 73%,then the percent decrease height isA. 50%B. 70%C. 73%D. 83% 3. The length of the diagonal of a cube is 7√3 m.What is the surface area of the cube is A. 629 sq.mB. 329 sq.mC. 789 sq.mD. 294 sq.m 4. The radius of a sphere be increased by 30%.The percent increase in volume isA. 98.5B. 119.7C. 59.6D. 69.8 5. The dimensions of a cinema hall are 150m,90m and 20m.How many persons can sit in the hall if each requires 125 cu.m of air?A. 1560B. 2000C. 2160D. 1920 6. The ratio of the 2 spheres are in the ratio 8:27.The ratio of their area isA. 1:4B. 4:9C. 1:81D. 4:11 7. How many 2 cm cubes can be cut from a 8 cm cube?A. 16B. 64C. 8D. 4 8. 2 cubes,each has 11 cm edge,are joined end to end.Find the value of volume of the resulting shape? A. 2345 cu.mB. 1662 cu.mC. 2662 cu.mD. 1982 cu.m 9. An item in the form of a cone mounted on a semi-sphere.The diameter of the base of the cone is 12 cm and its height is 8 cm.The surface area of the item isA. 125π sq.mB. 132π sq.mC. 145 sq.mD. 234π sq.m 10. The dimensions of a cuboid are 33.8 length,18.9 m breadth and 9.6 m height.If length is increased by 39.4%,then what is percent increase in volume?A. 39.4B. 78.8C. 67.8D. 98 11. A well of 2m inside diameter is dug 7m deep.The earth dug out of it is spread evenly all around it to a width of 5m from an embankment.What is the height of embankment so formed?A. 20 cmB. 30 cmC. 5 cmD. 10 cm 12. The volume of a right circular cone whose radius of the base is 21 cm is 12936cu.cm.Find the curved surface area of the cone?A. 234 sq.cmB. 2345 sq.cmC. 2310 sq.cmD. 1230 sq.cm 13. The radius of a solid metallic sphere is 1.5 cm.It is melted and drawn into a wire of diameter 0.2 cm.What is the length of the wire?A. 450 cmB. 350cmC. 150 cmD. 445 cm 14. If the radius of the sphere becomes triple,then the ratio of the previous and new volume will beA. 27:1B. 1:64C. 1:27D. 1:9 15. The circular pond of radius 21 m is surrounded by path 7 m wide.What is the area of the path?A. 1078 sq.mB. 1045 sq.mC. 978 sq.mD. 678 sq.m Related posts: Mensuration – 2D Quiz 1 Mensuration 3D Quiz -1 Mensuration 3D Quiz 2 Mensuration 2D Quiz – 2 Mensuration 2D Quiz 3 Mensuration 3D Quiz 3 Mensuration 3D Quiz 4

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