GATE CE 2018 Set 1 — Question 42

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MCQ+2 / -0.67MediumFluid PressureFluid Properties & StaticsWater Resources Engineering

Water Resources Engineering → Fluid Properties & Statics → Fluid Pressure

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Question

A closed tank contains 0.5 m0.5\text{ m} thick layer of mercury (specific gravity =13.6= 13.6) at the bottom. A 2.0 m2.0\text{ m} thick layer of water lies above the mercury layer. A 3.0 m3.0\text{ m} thick layer of oil (specific gravity =0.6= 0.6) 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/m2196.2\text{ kN/m}^2. The density of water is 1000 kg/m31000\text{ kg/m}^3 and the acceleration due to gravity is 9.81 m/s29.81\text{ m/s}^2. The value of pressure in the air space is
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