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I don't know the specific answer but it won't be a manometer. That measures small gas pressures.
As the Pressure of the gas being measured increases the height of the fluid in the Manometer Tube increases. The reverse is also true. The graduations of the Manometer Tube gives you a reading of the Gas Pressure being measured.
What is a two liquid well type manometer is one of the three main types of manometers. This type is best applied to reading scales that are properly calibrated and in the right units.
478 mm hg
That would be where you are up to when reading it.
For map reading and finding position you can Triangulate you position. With 2 known position and a unknown position you can figure out the unknown position on a map.
A diffrntial u tube manometer is a long bent tube whos both ends r conctd at points in a pipe where presure is to b measurd.Take d reading in d first tube h1 in mm n do similarly in secnd tube n its h2. Den d differential head wil b h1-h2.
a good environment that you fell is comforatable for you...its your choice
I think upside down.
Because it paid well
Mercury has two advantages over alcohol when it comes to measuring pressure in a manometer: 1) it is far denser than alcohol. A column of mercury need only be about 760 mm ( about 3/4 of a meter) high to exert a pressure equal to atmospheric pressure at sea level. Alcohol would have to be over 13 meters high to reach the same pressure! (rather impractical) 2) Mercury has a very low vapor pressure so it doesn't evaporate when exposed to the atmosphere. It also contributes a negligible amount of pressure above the column on the sealed end of the manometer for pretty much any atmospheric temperature. Alcohol has a significant vapor pressure so it would tend to evaporate when exposed to the atmosphere. It also has a high enough vapor pressure that it would contribute a noticeable amount of pressure on the sealed end of the manometer - and the pressure would vary quite noticeably over the range of temperatures that atmospheric manometers are commonly exposed to - so the manometer reading would always have to be corrected for temperature - more so than the mercury manometer must be.
the pilot