Quiz about Surface Area And Volume

Question 1

2.2 cubic dm of brass is to drawn into a cylindrical wire of $$0.25 ~cm$$ diameters. Find the length of the wire?

Accepted Answer

Covalent bond

Answer

$$450 ~m$$

Answer

$$572 ~m$$

Answer

$$448 ~m$$

Answer

$$530 ~m$$

Question 2

25 circular plates each of radius $$10.5 ~cm$$ and thickness $$1.6 ~cm$$ are placed one above the other to form a solid circular cylinder. Find the curved surface area of the cylinder so formed.

Accepted Answer

Covalent bond

Answer

$$2640 ~cm^2$$

Answer

$$2650 ~cm^2$$

Answer

$$2660 ~cm^2$$

Answer

$$2680 ~cm^2$$

Question 3

Surface area of a sphere is equal to the curved surface area of the circumscribed cylinder (True or False)

Accepted Answer

Covalent bond

Answer

False

Answer

True

Question 4

Find the ratio of the volume if the radius of the larger ball is four times the radius of the smaller ball.

Accepted Answer

Covalent bond

Answer

$$1:64$$

Answer

$$1:4$$

Answer

$$1:16$$

Answer

$$1:8$$

Question 5

A hollow sphere of internal and external diameters $$4 ~cm$$ and $$8 ~cm$$ is melted into a cone of base diameter $$8 ~cm$$. Calculate the height of the cone?

Accepted Answer

Covalent bond

Answer

$$20 ~cm$$

Answer

$$16 ~cm$$

Answer

$$14 ~cm$$

Answer

$$12 ~cm$$

R D Sharma Surface Area And Volume Cbse Class 10 Maths Problems and Solutions

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