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BARC 2020: Fluid mechanics Nuclear Quiz 3

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Question 1

A fluid is stored in a container. The fluid can be approximated as an ideal fluid having no viscous effect. The pressure inside the fluid is 2 Mpa. The container is suddenly compressed by uniform force from outside and as a result of this the volume decreases by 2m3 . Initial volume of the of the container is 20m3. Find the isothermal bulk modulus of the fluid.

Question 2

The cylinder is rotated about the central axia as shown in figure. The force (in N) on the bottom of the cylinder, when the rotation speed is such that the water just touches the point A will be

Description: E:\Gate\SSC JE Civil Part 1-Done\04_FM_BLok_files\image092.png

Question 3

A plate (1m × 1m) is submerged in water as shown in figure. It is kept at 60° with vertical find vertical distance of CP from top of water surface.

Question 4

A closed tank containing water is partly filled with water and the air space above it is under pressure. A 5 cm diameter bore connected to the tank discharges water to atmosphere on to the roof of building 3.0 m above the level of water in the tank. If friction losses are 1.5 m of water, then the air pressure that must be maintained in the tank to deliver 15 l/s to the roof is _________ kPa (gauge).
[Take density of water = 9.79 kN/m3]

Question 5

A fluid is flowing with the following velocity profile


If the flow is 2D and incompressible then find the value of

Question 6

Two pipes of same length L/2 and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of the length L is

Question 7

In a horizontal rectangular channel, a hydraulic jump with a sequent depth ratio of 5.0 is formed. This jump can be classified as

Question 8

A triangular channel has a side slope of 2 horizontal: 1vertical and is laid on a longitudinal slope of 1 in 2000. The normal depth (in m) required to pass a discharge of 0.50 m3/s is:
[Assume Manning’s coefficient n = 0.015]

Question 9

A double overhung 1.5 m diameter impulse turbine installation is to develop 3000kW at 400 rpm under a net head of 300 m. If the overall efficiency is 0.90, then the diameter of the jet is ___________cm. (Take Description: E:\Gate\SSC JE Civil Part 1-Done\04_FM_BLok_files\image065.png, unit weight of water = 9.79 Description: E:\Gate\SSC JE Civil Part 1-Done\04_FM_BLok_files\image066.png)

Question 10

Two pipe systems in series are said to be equivalent when
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Feb 20ESE & GATE CE