Please solve from 1-4 1. The absolute viscosity ofa fluid is a primarily a finct

Question

Please solve from 1-4

1. The absolute viscosity ofa fluid is a primarily a finction of A. Density B.TemperatureC. Pressure D. Viscosity .Porosity 2. The bulb of the include which of the following? open-end manometer shown contains a ges. Thue satements about this sye A. Oaly atmospheric pressure is exerted on the exposed mercury surface in the right side of the tube. The gas pressure is less than atmospheric pressure. in the height, h, of mercury. 1o the pressure of the gas B C. Increasing the gas pressure will decrease the difference D. The difference in the height, h,of mercury levels is equal E. All statements are true. 3. Centet of pressure on an inclined plane is at the centroid B. above the centroid. C. below the centrord D, at metacenter E. none of the above 4. A uniform solid body weighs 4 kg in air and 3.5kg in water. What is its specifie gravity? (Take g 10 m/sind Pwster-1000 kg/mi) A. 4 B.75 D.0.SE.12

Explanation / Answer

1) B ) temperature

2) A)

3) c)below the centroid

4)

We know that

Weight in water = Wight in air - buancy force by water

3.5x 10 = 4x10 - 1000x10 xV

( Buancy force = rho .g V)

V = 0.0005 m3

Then density of body = mass in air/ volume

D = 4/.0005 = 8000 kg/m3

Then specific gravity = 8000/1000 = 8

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