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GATE 2022 ME: Fluid Mechanics Quiz-5

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Question 1

The fluid forces considered in the Navier Stokes equation are _________.

Question 2

Which of the following is true for the free vortex _________?

Question 3

In a steady flow of water, water is coming in through Pipe 1 (area 1 m2, velocity 1 m/s) and Pipe 2 (area 2 m2, velocity 2 m/s) and going out through Pipe 3 (area 2.5 m2). The exit velocity of Pipe 3 is?

Question 4

A 200 mm diameter pipeline is laid on the ground. At a particular point, the piezometric head is 20 m. Total energy head of water at a point is 26 m. The Discharge (L/s) of water through the pipe is ______.

Question 5

A 30 cm diameter Horizontal Pipe terminates in a nozzle with exit diameter of 5 cm. If water flows through the Pipe at a rate of 0.2 m3/s. What force (in MN) will be exerted by fluid on nozzle.

Question 6

Water is coming out to the atmosphere from a converging channel with a velocity of 5 m/s as shown in the figure. At section A, a cylinder of 10 cm diameter containing a friction-less piston attached to a spring having spring constant 500 N/m is connected. The cross-section diameter of the channel at A and B is 2 m and 1 m respectively. Due to the flow the spring is compressed by an amount of
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