Question

A closed tank contains 0.8m thick layer of mercury (Specific gravity = 13.6) at the bottom. A 5m thick layer of water lies above the mercury layer. A 4m thick layer of oil (specific gravity = 0.8) lies above the water layer. The space above the oil layer contains air under pressure.The gauge pressure at the bottom of the tank is 196.2 kN/m2. The density of water and acceleration due to gravity to be 1000 kg/m3 and 9.81m/s2. The value of pressure in the air space (in kN) is​

Answer 1

Answer:

the thickness is 1.5mm

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Answer 2

Answer:

627.8 KN/m2

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