GATE 2025 FLUID MECHANICS 17

The atmospheric pressure in kPa if a mercury barometer reads 700 mm.

What will be the centre of buoyancy of a block floating horizontally in water. The dimension of block are 5 × 2 × 1 m and the specific gravity of block is 0.65

What is the height ‘h’ of water for a figure as shown in which gauge ‘P’ attached at the bottom of tank reads 550 kPa (absolute)?

Match the following:

List-I

A) Simple Manometer

B) Differential manometer

C) Piezometer

D) U-tube Manometer

List-II

1) Measure pressure difference between two points

2) Measure gas pressure at a point

3) Doesn’t measure gas pressure and negative pressure

4) Measure pressure at a point

A pressure gauge reads 62.3 kPa and 90 kPa respectively at heights of 7 m and 4 m fitted on the side of a tank filled with liquid. What is the approximate density of the liquid on kg/m³?

A metallic body floats at the interface of mercury and water such that 60% of its volume is submerged in mercury and 40% in water. The density of the metal will be