Volume And Surface Area – Aptitude MCQ Questions – 09 Posted on July 3, 2020July 3, 2020 by admin 1 Created on July 03, 2020 By admin Volume And Surface Area - Aptitude MCQ Questions - 09 1 / 10 1. A circular well with a diameter of 2 metres, is dug to a depth of 14 metres. What is the volume of the earth dug out ? A.32 m3 B.36 m3 C.40 m3 D.44 m3 2 / 10 2. 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.1 : 2 B.1 : 4 C.1 : 8 D.8 : 1 3 / 10 3. The number of circular pipes with an inside diameter of 1 inch which will carry the same amount of water as a pipe with an inside diameter of 6 inches is : A. 6π6π B. 12 C. 36 D. 36π 4 / 10 4. A right triangle with sides 3 cm, 4 cm and 5 cm is rotated about the side of 3 cm to form a cone. The volume of the cone so formed is : A.12π cm3 B.15π cm3 C.16π cm3 D.20π cm3 5 / 10 5. The radius of the base and height of a metallic solid cylinder are r cm and 6 cm respectively. It is melted and recast into a solid cone of the same radius of base. The height of the cone is : A.9 cm B.18 cm C.27 cm D.54 cm 6 / 10 6. For a sphere of radius 10 cm, What percent of the numerical value of its volume would be the numerical value of the surface area ? A.24% B.26.5% C.30% D.45% 7 / 10 7. How many lead shots each 3 mm in diameter can be made from a cuboid of dimensions 9 cm × 11 cm × 12 cm ? A.7200 B.8400 C.72000 D.84000 8 / 10 8. A metallic sphere of radius 5 cm is melted to make a cone with base of the same radius. What is the height of the cone ? A.5 cm B.10 cm C.15 cm D.20 cm 9 / 10 9. A hemisphere of lead of radius 6 cm is cast into a right circular cone of height 75 cm. The radius of the base of the cone is : A.1.4 cm B.2 cm C.2.4 cm D.4.2 cm 10 / 10 10. Base of a right prism is a rectangle, the ratio of whose length and breadth is 3 : 2. If the height of the prism is 12 cm and total surface area is 288 sq.cm the volume of the prism is : A.291 cm3 B.288 cm3 C.290 cm3 D.286 cm3 Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz