CBSE Class 9 Maths Surface Areas and Volumes MCQs Set B

CBSE Class 9 Surface Areas and Volumes MCQs Set B. Multiple choice questions have become an integral part of the CBSE examination system. Almost all exams have a section for MCQs. Students are advised to refer to the attached MCQ database and practise them regularly. This will help them to identify their weak areas and will help them to score better in examination. Parents should download and give the MCQs to their children for practice.

1. The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. The area of the playground in m2 is:

(a) 1584 (b) 1284 (c) 1384 (d) 1184

2. A cylindrical pillar is 50 cm in diameter and 3.5 m in height. The cost of painting its curved surface at the rate of Rs. 12.50 per m2 is:

(a) Rs. 68.75 (b) Rs. 58.75 (c) Rs. 48.75 (d) Rs. 38.75

3. The inner diameter of circular well is 3.5m. It is 10m deep. Its inner curved surface area in m2 is:

(a) 120 (b) 110 (c) 130 (d) 140

4. In a hot water heating system there is a cylindrical pipe of length 28 m and diameter 5 cm. The total radiating surface area in the system in m2 is:

(a) 6.6 (b) 5.5 (c) 4.4 (d) 3.4

5. The curved surface area of a right circular cone of slant height 10 cm and base radius 7 cm is

(a) 120 cm2 (b) 220 cm2 (c) 240 cm2 (d) 140 cm2

6. The height of a cone is 16 cm and base radius is 12 cm. Its slant height is

(a) 10 cm (b) 15 cm (c) 20 cm (d) 8 cm

7. The curved surface area of a right circular cone of height 16 cm and base radius 12 cm is

(a) 753.6 cm2 (b) 1205.76 cm2 (c) 863.8 cm2 (d) 907.6 cm2

8. The curved surface area of a right circular cone of slant height 10 cm and base radius 10.5 cm is

(a) 185 cm2 (b) 160 cm2 (c) 165 cm2 (d) 195 cm2

9. The slant height of a cone is 26 cm and base diameter is 20 cm. Its height is

(a) 24 cm (b) 25 cm (c) 23 cm (d) 35 cm

10. The curved surface area of a cone is 308 cm2 and its slant height is 14 cm. The radius of its baseis

(a) 8 cm (b) 7 cm (c) 9 cm (d) 12 cm

11. A conical tent is 10 m high and the radius of its base is 24 m. The slant height of tent is

(a) 26 m (b) 28 m (c) 25 m (d) 27 m

12. The slant height and base diameter of a conical tomb are 25 m and 14 m respectively. The cost of white washing its curved surface at the rate of Rs. 210 per 100 m2 is

(a) Rs. 1233 (b) Rs. 1155 (c) Rs. 1388 (d) Rs. 1432

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