CBSE Class 9 Mathematics Worksheet
Surface Area and Volumes - Cylindrical
1.
A cylindrical pillar is 50 cm in diameter and 3.5 cm in height. Find the cost of painting the curved surface of pillar at the rate of Rs 12.50 per m2?
A)
Rs 56.80
B)
Rs 68.75
C)
Rs 78.65
D)
Rs 72.25
2.
In a hot water heating system, there is a cylindrical pipe of length 35m and diameter 10 cm. Find its total radiating surface?
A)
11 sq m
B)
22 sq m
C)
44 sq m
D)
None of these
3.
A cylinder has length of 28 m and diameter 5 cm. Find its total surface area.
A)
1.1 sq. m
B)
2.2 sq. m
C)
4.4 sq. m
D)
None of these
4.
Fill in the blanks: In a cylinder, if radius is doubled and height is halved, the volume will be _____.
A)
Halved
B)
Doubled
C)
Remains same
D)
Tripled
5.
A container has a radius of 3.5 cm and its height is 40 cm. What capacity of water it can store?
A)
1.54 liters
B)
3.08 liters
C)
4.34 liters
D)
None of these
6.
Curved surface area of a right circular cylinder is 2.2 sq. m. If the diameter of the base of the cylinder is 0.7 m, find its height.
A)
0.5 m
B)
2 m
C)
1 m
D)
0.25 m
7.
Choose the correct option: The radius and height of a cylinder are in the ratio of 7:2 and its volume is 8316 sq. cm. The diameter of cylinder is ________.
A)
21 cm
B)
3 cm
C)
42 cm
D)
6 cm
8.
Choose the correct option: The inner radius of a circular well is 3.5 m. It is 20 m deep. Its inner curved surface area is ________.
A)
110 sq. m
B)
220 sq. m
C)
330 sq. m
D)
440 sq. m
9.
The diameter of a garden roller is 1.4m and it is 2m long. How much area will it cover in 5 revolutions?
10.
A well with 10m inside diameter is dug 14m deep. Earth taken out of it is spread all around to a width of 5m to form an embankment. Find the height of embankment.
A)
3.26 m
B)
7.52 m
C)
4.66 m
D)
2.66 m
11.
Choose the correct option: If four times the sum of the areas of two circular faces of a cylinder of height 8 cm is equal to twice the curved surface area , then its diameter is __________.
A)
8 cm
B)
16 cm
C)
4 cm
D)
2 cm
12.
The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. Find the radius of the base of the cylinder?
13.
State True/False: If the radius of a cylinder is halved and height is doubled, the volume will be doubled.
A)
true
B)
false
14.
A solid cylinder has a total surface area 462 sq. cm. Its curbed surface area is one-third of the total surface area. Find the volume of the cylinder?
15.
State True/False: If the radius of a cylinder is doubled and its curved surface area is not changed, the height must be halved.
A)
true
B)
false
CBSE Class 9 Mathematics Worksheet
Surface Area and Volumes - Cylindrical
Answers
1.
Option B
2.
Option A
3.
Option C
4.
Option B
5.
Option A
6.
Option C
7.
Option C
8.
Option D
9.
10.
Option C
11.
Option A
12.
13.
Option B
14.
15.
Option A
