… The article depicts a house with a fir tree and a snowman in the foreground. The house has an opening in the shape of a fir tree. The snowman is wearing a Santa Claus hat (red, pointy hat with a …
… or other variables of liquids or gases (for example, flowmeters, level gauges, manometers, heat meters), … CHECKING THE FLOW OR RATE OF FLOW OF LIQUIDS OR GASES (A) Flowmeters . These indicate the rate of flow (in volume or …