A water tank has four taps fixed at points A, B, C, D as shown in Fig. 11.4. The water will flow out at the same pressure from taps at

B and C

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A and B

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C and D

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A and C

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Solution

The correct option is A B and C
The pressure inside a liquid at the same depth will be equal and the liquid pressure differs with the height of the liquid. Here, the points B and C in the water tank lie at the same depth and hence have the same pressure when water is allowed to flow out.

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Question 7

A water tank has four taps fixed at points A, B, C, D as shown in the figure. The water will flow out at the same pressure from taps at

(a) B and C
(b) A and B
(c) C and D
(d) A and C

Q. The figure shows the commonly observed decrease in diameter of a water stream as it falls from a tap. The tap has internal diameter

D_{0}

and is connected to a large tank of water. The surface of the water is at a height b above the end of the tap. By considering the dynamics of a thin "cylinder' of water in the stream answer the following: (ignore any resistance to the flow and any effects of surface tension, given

ρ_{w}

density of water)
1. Which of the following equation expresses the fact that the flow rate at the tap is the same as at the stream point with diameter D and velocity v (i.e. D in terms of

D_{0}

v_{0}

and v will be):

Q. 8 taps are fitted in a tank, some are water taps and rest are outlet taps. Each water tap can fill the tank in 12 hrs and each outlet tap can empty it in 36 hrs. Find the number of outlet water taps, if the whole tank can be filled in 3 hrs.

Q. A tap fills a tank completely with water in

5

hours. The tap on the bottom of tank being kept open, it takes

6

hours to fill the tank with water. In how many hours does the tap at the bottom completely drain out water from the tank?

Q. Tap

A

can fill a water tank in 12 min, tap

B

will fill the same tank in 10 min and tap

C

can empty the tank in 6 min. If all the three taps are opened together, in how many minutes will the tank be completely filled up or emptied?

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A water tank has four taps fixed at points A, B, C, D as shown in Fig. 11.4. The water will flow out at the same pressure from taps at

The correct option is A B and CThe pressure inside a liquid at the same depth will be equal and the liquid pressure differs with the height of the liquid. Here, the points B and C in the water tank lie at the same depth and hence have the same pressure when water is allowed to flow out.

The correct option is A B and C
The pressure inside a liquid at the same depth will be equal and the liquid pressure differs with the height of the liquid. Here, the points B and C in the water tank lie at the same depth and hence have the same pressure when water is allowed to flow out.