A farmer connects a pipe of internal diameter 20 cm from a canal into a cylindrical tank in her field, which is 10 m in diameter and 2 m deep. If water flows through the pipe at the rate of 3 km/h, in how much time will the tank be filled?
1 Answers
Talk Doctor Online in Bissoy App
It is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet.
Here, h = 1 m, r = 140/ 2 cm = 70 cm = 0.7 m Total surface area of the cylinder = 2πr (h + r) = 2 × 22/ 7...
1 Answers 1 views
A metal pipe is 77 cm long. The inner diameter of a cross section is 4 cm, the outer diameter being 4.4 cm (see figure). Find its.
Here, h = 77 cm, Outer radius (R) = 4. 4/ 2 cm = 2.2 cm, Inner radius (r) = 4/ 2 cm = 2 cm (i) Inner curved surface area of the pipe =...
1 Answers 3 views
In a hot water heating system. there is a cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface in the system.
Here, r = 5/ 2 cm = 2.5 cm = 0.025 m, h = 28 m. Total radiating surface in the system = total surface area of the cylinder = 2π r(h...
1 Answers 1 views
Find (i) the lateral or curved surface area of a closed cylindrical petrol storage tank that is 4.2 m in diameter and 4.5 m high.
Here, r = 4. 2/ 2 m = 2.1 m, h = 4.5 m (i) Curved surface area of the storage tank = 2πrh = 2 × 22 7 × 2.1 × 4.5...
1 Answers 1 views
The inner diameter of a cylindrical wooden pipe is 24 cm and its outer diameter is 28 cm. The length of the pipe is 35 cm.
Here, inner radius (r) = 24/ 2 cm = 12 cm Outer radius (R) = 28/ 2 cm = 14 cm, h = 35 cm Volume of the wood used in the...
1 Answers 1 views
It costs Rs 2200 to paint the inner curved surface of a cylindrical vessel 10 m deep. If the cost of painting is at the rate of Rs 20 per m2, find
Here, h = 10 m (i) Inner curved surface area = Total cost / Cost of painting per m2 = 2200 / 20 m2 = 110 m2 Ans. (ii) We have, 2πrh =...
1 Answers 2 views
Given a cylindrical tank, in which situation will you find surface are and in which situation volume. (a) To find how much it can hold
We find area when a region covered by a boundary, such as outer and inner surface area of a cylinder, a cone, a sphere and surface of wall or floor. When...
1 Answers 1 views
Sheena was very excited to see her Aunt after a long time. Her mother fried a lot of snacks for her Aunt. Suddenly Sheena came to know that
(i) When food is kept for a very long time, it gets oxidized and becomes rancid. (ii) Sheena suggested her mother to keep the snacks in an air tight container. (iii) Intelligence,...
1 Answers 1 views
Beera is a farmer. His field has black soil and the climate is warm. Which fibre yielding plant should he grow in his field?
(b) Cotton, answer is correct
1 Answers 1 views
A large cylindrical tank has a hole of area A at its bottom. Water is poured in the tank by a tube of equal,
(c) The water level will rise to a height v2/2 g and then stop. EXPLANATION: Initially, the velocity of the water coming out of the tank will be negligible due to the...
1 Answers 1 views