A closed cylindrical tank, 3.05m high and 0.610 m diameter has a mercury U-tube gauge connected to the side 0.717 m above the bottom of the tank, the other end of the U-tube being open. When the tank is empty the level of mercury is 0.22 m below the bottom of the tank. A piezometer tube is connected to the bottom of the tank. Into the tank are placed in turn, 136 I of glycerine, 181 I of water and 226 I of light oil so that they do not mix. Air is blown in the top to a gauge pressure of 0.192 bar. What will be the difference of mercury level in the U-tube, and the height of fluid surface in the piezometer tube above the tank floor level? (The quantity of liquid in the gauges may be ignored) (0.296 m, 3.002 m)