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GATE 2019: Fluid Mechanics Quiz 3
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Question 1
A spherical balloon 1.5 m diameter is completely immersed in water and chained to the bottom. If the chain has a tension of 10kN, the weight of the ballon in air is ________.
Question 2
In a mercury water manometer the difference in pressure measured as 12m of water. What is the gauge difference?
Question 3
In the manometer tube, if Pgas > Patm indicates:
Question 4
An inverted U-tube manometer is used to measure the pressure difference between two pipes A and B, as shown in the figure. Pipe A is carrying oil (specific gravity = 0.8) and pipe B is carrying water. The densities of air and water are 1.16 kg/m3 and 1000 kg/m3, respectively. The pressure difference between pipes A and B is __________kPa.
Acceleration due to gravity g = 10 m/s2.
Acceleration due to gravity g = 10 m/s2.
Question 5
An object having a volume of 5 x 10-3 m3 floats in a liquid having density of 1500 kg/m3. if its 60% volume is above liquid surface level, Then calculate the weight of the object. (g=10m/s2)
Question 6
A small tank is placed at a height of 1000m measured from sea level, thus the atmospheric pressure is 13.08 psi. Pressure gauge attached to the top of the tank, shows a reading of 2.5 bar. What will be the pressure required to evacuate the tank. ( Given : 1 bar = 14.503 psi)
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