MCQs Questions for Class 9 Maths Chapter 13 Surface Areas and Volumes

# MCQs Questions for Class 9 Maths Chapter 13 Surface Areas and Volumes

## MCQs Questions for Class 9 Maths Chapter 13 Surface Areas and Volumes

In this 21st century, Multiple Choice Questions (MCQs) play an important role to prepare for a competitive examination. Now-a-days, MCQs questions are asked in CBSE board examinations as well. In most of the competitive examinations, only MCQ Questions are asked.

In future, if you want to prepare for competitive examination, then you should focus on the MCQs questions. Thus, let’s solve these MCQs questions to make our foundation strong.

In this post, you will find 20 MCQs questions for class 9 maths chapter 13 surface area and volume.

## MCQs Questions for Class 9 Maths Chapter 13 Surface Areas and Volumes

1. The formula to find surface area of a cuboid of length (l), breadth (b) and height (h) is:
(a) lb + bh + hl
(b) 2(lb + bh + hl)
(c) 2(lbh)
(d) lbh/2

2. If the perimeter of one of the faces of a cube is 40 cm, then its volume is:
(a) 6000 cm³
(b) 1600 cm³
(c) 1000 cm³
(d) 600 cm³

## 3. If slant height of the cone is 21 cm and diameter of base is 24 cm. The total surface area of cone is:

(a) 1200.77 sq. cm
(b) 1177 sq. cm
(c) 1222.77 sq. cm
(d) 1244.57 sq. cm

4. The radius of a cylinder is doubled and the height remains the same. The ratio between the volumes of the new cylinder and the original cylinder is
(a) 1 : 2
(b) 3 : 1
(c) 4 : 1
(d) 1 : 8

5. The surface area of a cube whose edge equals to 3 cm is:
(a) 62 sq. cm
(b) 30 sq. cm
(c) 54 sq. cm
(d) 90 sq. cm

## 6. A rectangular sand box is 5 m wide and 2 m long. How many cubic metres of sand are needed to fill the box up to a depth of 10 cm?

(a) 1
(b) 10
(c) 100
(d) 1000

7. The length of diagonals of a cube of side a cm is
(a) √2a cm
(b) √3a cm
(c) 3a cm
(d) 1 cm

8. The surface area of cuboid-shaped box having length = 80 cm, breadth = 40 cm and height = 20 cm is:
(a) 11200 sq. cm
(b) 13000 sq. cm
(c) 13400 sq. cm
(d) 12000 sq. cm

## 9. In a cylinder, radius is doubled and height is halved, curved surface area will be

(a) halved
(b) doubled
(c) same
(d) four time

10. Volume of hollow cylinder
(a) Ï€(R² – r²)h
(b) Ï€R²h
(c) Ï€r²h
(d) Ï€r²(h1 – h1)

11. The volume of hemisphere whose radius is r, is:
(a) 4/3 Ï€r3
(b) 4Ï€r3
(c) 2Ï€r3
(d) ⅔ Ï€r3

## 12. The length of the longest pole that can be put in a room of dimension (10 m × 10 m × 5 m) is

(a) 15 m
(b) 16 m
(c) 10 m
(d) 12 m

13. The radius of a hemispherical balloon increases from 6 cm to 12 cm as air is being pumped into it. The ratios of the surface areas of the balloon in the two cases is
(a) 1 : 4
(b) 1 : 3
(c) 2 : 3
(d) 2 : 1

14. The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. The diameter of the base is:
(a) 2 cm
(b) 3 cm
(c) 4 cm
(d) 6 cm

15. The diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. The curved surface area is:
(a) 150 sq. cm
(b) 165 sq. cm
(c) 177 sq. cm
(d) 180 sq. cm

16. The lateral surface area of a cube is 256 m³. The volume of the cube is
(a) 512 m³
(b) 64 m³
(c) 216 m³
(d) 256 m³

17. If slant height of the cone is 21 cm and diameter of base is 24 cm, the the total surface area of cone is:
(a) 1200.77 sq. cm
(b) 1177 sq. cm
(c) 1222.77 sq. cm
(d) 1244.57 sq. cm

18. A cone is 8.4 cm high and the radius of its base is 2.1 cm. It is melted and recast into a shape. The radius of the sphere is
(a) 4.2 cm
(b) 2.1 cm
(c) 2.4 cm
(d) 1.6 cm

19. The surface area of a sphere of radius 14 cm is:
(a) 1386 sq. cm
(b) 1400 sq. cm
(c) 2464 sq. cm
(d) 2000 sq. cm