CBSE Class 9 Maths Surface Areas and Volumes MCQs Set B

CBSE Class 9 Maths Surface Areas and Volumes MCQs Set B with answers available in Pdf for free download. The MCQ Questions for Class 9 Surface areas and Volumes with answers have been prepared as per the latest 2021 syllabus, NCERT books and examination pattern suggested in Standard 9 by CBSE, NCERT and KVS. Multiple Choice Questions for important part of exams for Grade 9 Surface areas and Volumes and if practiced properly can help you to get higher marks. Refer to more Chapter wise MCQs for NCERT Class 9 Surface areas and Volumes and also download more latest study material for all subjects

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

 

More Questions..................

 

Question: Vertical and horizontal cross-sections of a right circular cylinder are always respectively

  • a) rectangle, circle
  • b) rectangle, ellipse
  • c) square, circle
  • d) rectangle, square

Answer: rectangle, circle


Question: A right cylindrical vessel is full with water. How many right cones having same diameter and height as of right cylinder will be needed to store that water?

  • a) 3
  • b) 2
  • c) 4
  • d) 5

Answer: 3


Question: The area of a trapezium is 28 cm2 and one of its parallel sides 6 cm. If its altitude is 4 cm., then its other parallel side is

  • a) 8 cm
  • b) 6 cm
  • c) 4 cm
  • d) 9 cm

Answer: 8 cm


Question: The ratio of the areas of a square to that of a square drawn on its diagonal is

  • a) 1 : 2
  • b) 1 : 4
  • c) 1 : 1
  • d) 1 : 3

Answer: 1 : 2


Question: A man bought a rectangle plot of 144 m length and 64 m width. In exchange for this field he wanted to buy a square field of the same area. Then the side of the square field would be

  • a) 96 m
  • b) 104 m
  • c) 208 m
  • d) 406 m

Answer: 96 m


Question: A metal sheet 27 cm long, 8 cm broad and 1 cm thick is melted into a cube. The difference between surface areas of two solids is

  • a) 286 cm2
  • b) 280 cm2
  • c) 284 cm2
  • d) None of these

Answer: 286 cm2

 

Question: Three cubes whose edges are 3 cm, 4 cm and 5 cm respectively are melted without any loss of metal into a single cube. The edge of new cube is

  • a) 6 cm
  • b) 9 cm
  • c) 12 cm
  • d) 10 cm

Answer: 6 cm


Question: If length, breadth and height of rectangular parallelopiped are in ratio 6 : 5 : 4 and total surface area\ is 33,300 m2, then length breadth and height of parallelopiped are in (m)

  • a) 90, 75, 60
  • b) 90, 75 , 70
  • c) 85, 75, 60
  • d) 80, 70, 60

Answer: 90, 75, 60


Question: The radius of the cylinder whose lateral surface area is 704 cm23 and height 8 cm, is

  • a) 14 cm
  • b) 4 cm
  • c) 6 cm
  • d) 8 cm

Answer: 14 cm


Question: A covered wooden box has the inner measures as 115 cm, 75 cm and 35 cm and the thickness of wood is 2.5 cm. The volume of the wood, is

  • a) 82,125 cu cm
  • b) 85,000 cu cm
  • c) 80,000 cu cm
  • d) 84,000 cu cm

Answer: 82,125 cu cm


Question: A solid cube is chopped off at each of its 8 corners to create an equilateral triangle with 3 new corners. The 24 corners are now joined to each other by diagonals. How many of these diagonals completely lie inside the cube?

  • a) 120
  • b) 96
  • c) 108
  • d) 100

Answer: 120


Question: Two cubes have volume in the ratio 1 : 27. The ratio of the area of the face of one to that of the other is

  • a) 1 : 9
  • b) 1 : 3
  • c) 1 : 6
  • d) 1 : 18

Answer: 1 : 9


Question: The surface areas of the six faces of a rectangular solid are 4, 4, 8, 8, 18 and 18 square centimetres. The volume of the solid, in cubic centimetres is

  • a) 24
  • b) 60
  • c) 48
  • d) 324

Answer: 24


Question: A rectangle field has its length and breadth in the ratio 5 : 3. Its area is 3.75 hectares. The cost of fencing it at Rs. 5 per meter is

  • a) Rs. 4000
  • b) Rs. 500
  • c) Rs. 1000
  • d) None of these

Answer: Rs. 4000

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