Actual lapse rate.
Wet legs are used on differential pressure measurement where both sides are filled with liquid. Exception is level measurement in a pressurised vessel (boilers). Dry legs are used where the low side is exposed to atmosphere using a DP transmitter for level measurement in a open tank.
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Density is a term that basically means the amount of matter in a substance and it is used for many reasons. it is used to determine whether something will sink or float, it is used to determine whether a material like gold is pure and it is used when choosing materials for things like planes e.g. for planes you need something lightweight.
These units are used:- pascal (Pa), the SI unit- millimetre of mercury- torr- millibar1 Pa = 1 N/m2 = 133,3224 mmHg = 7,506.10e-3 torr = 0,01 millibar
it basically used for measurement of pressure.
Square measurement
used for measurement and test equipment. its used where great accuracy and stability of circuit are required.
Addition AND measurement.
meter, inch, yard
Romans and Greeks used a "foot" as a measurement. English kings made an iron ruler to determine the exact measurement.
- to determine the chemical nature of a rock - to determine the age of a rock by comparison
Roentgen
micrometer
False
Miles.
Litres and millilitres.
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