Chapter 13 Surface Areas and Volumes- MCQ Online Test 1 Class 9 Maths

1. A rectangular sand box is 5 m wide and 2 m long. How many cubic metres of sand are needed to fill the box upto a depth of 10 cm ?
(a) 100
(b) 10
(c) 1
(d) 1000

2. A beam 9 m long, 40 cm wide and 20 cm deep is made up of iron which weighs 50 kg per cubic metre. The weight of the beam is :
(a) 47 kg
(b) 33 kg
(c) 30 kg
(d) 36 kg

3. The maximum length of a pencil that can be kept in a rectangular box of dimensions 8 cm × 6 cm × 2 cm, is:
(a) √46 cm
(b) 2√26 cm
(c) 3√26 cm
(d) 2√29 cm

4. How many bricks, each measuring 25 cm × 12.5 cm × 7.5 cm will be needed to construct a wall 15 m long, 1.8 m high and 37.5 cm thick?
(a) 4575
(b) 4590
(c) 4320
(d) 5175

5. A wooden box of dimensions 8 m × 7 m × 6 m is to carry rectangular boxes of dimensions 8 cm × 7 cm × 6 cm. The maximum number of boxes that can be carried in the wooden box, is :
(a) 1600000
(b) 1000000
(c) 1100000
(d) 1700000

6. The surface area of a cube of side 27 cm is :
(a) 4374 cm²
(b) 4304 cm²
(c) 3474 cm²
(d) 4456 cm²

7. The perimeter of one face of a cube is 40 cm. The volume of the cube (in cm3) is :
(a) 950
(b) 1100
(c) 1000
(d) 900

8. The volume of a cube with surface area 384 sq. cm, is :
(a) 512 cm³
(b) 216 cm³
(c) 125 cm³
(d) 729 cm³

9. The length of the longest rod that can fit in a cubical vessel of side 10 cm, is
(a) 15√3 cm
(b) 10√3 cm
(c) 16√5 cm
(d) 12√6 cm

10. If the length of diagonal of a cube is 4√3 cm, then the length of its edge is :
(a) 6 cm
(b) 4 cm
(c) 9 cm
(d) 7 cm