Total Surface Area of a Right Circular Cylinder

Q.

^{The curved surface of a cylindrical bulb of height 18cm and base radius 7 cm is to be painted in luminating gold colour such that 2/3 rd of the height of bulb emits golden light, painting is done at Rs. 5 per sq. cm. The cost of painting the bulb is (pi =$\frac{22}{7}$)}

1. Rs.2640

2. Rs.1650

3. Rs.2750

4. Rs.2800

Q.

For a right circular cylinder of a base radius of $7cm$ and height of $14cm$, the total area of end faces $=154c{m}^2$.

1. True
2. False

Q. The green shaded region repesents the curved surface area of a cylinder

1. True
2. False

Q. The radii of two right circular cylinders are in the ratio of $3:2$ and their heights are in the ratio $5:3$. Find the ratio of their curved surface areas.

1. $C_1:C_2=5:2$
2. $C_1:C_2=2:2$
3. None of these
4. $C_1:C_2=2:5$

Q. In a hot water heating system, there is a cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface of the system.
$[Assume\pi =\frac{22}{7}]$

Q. The green shaded region repesents the curved surface area of a cylinder

1. False
2. True

Q. In a hot water heating system, there is a cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface of the system.
$[Assume\pi =\frac{22}{7}]$

Q. Distance travelled by a car is a continuous variable
If true then choose $1$ and if false then choose $0$

1. $1$
2. $0$
3. $4$
4. none of the above

Q.

The cost of painting the inner curved surface area of a cylindrical container of depth 20 m is Rs. 8800. Painter takes Rs. 40 per metre square to paint the cylindrical container. Find the inner curved surface area of the vessel.(in $m^2$)

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Q. In a hot water heating system, there is a cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface of the system.
$[Assume\pi =\frac{22}{7}]$

Q.

The cost of painting the inner curved surface area of a cylindrical container of depth 20 m is Rs. 8800. Painter takes Rs. 40 per metre square to paint the cylindrical container. Find the inner curved surface area of the vessel.(in $m^2$)

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Q. In a hot water heating system, there is a cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface of the system.
$[Assume\pi =\frac{22}{7}]$

Q.

The cost of painting the inner curved surface area of a cylindrical container of depth 20 m is Rs. 8800. Painter takes Rs. 40 per metre square to paint the cylindrical container. Find the inner curved surface area of the vessel.$\left(in{m}^2\right)$

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