Map Sapling Learning macmillan learning An engineer is instaling an open-end mer

Question

Map Sapling Learning macmillan learning An engineer is instaling an open-end mercury manometer attached to a pipe that will eventually carry pressurized gas. While the pipe is open to the atmosphere, she adds enough mercury into the manometer that the mercury level in both arms of the manometer is 670.0 mm above the bottom of the manometer. (See Fig. 1) Pipe apen to atmosphere If the end of the open arm of the manometer is 1090.0 mm above the bottom of the manometer, what is the maximum pressure (gauge) of the pressurized gas that the pipe can carry before the mercury spills out the open end the manometer? (See Fig. 2) 670.0 mm Number psig Pressurized pipe 1090.0 mm Fig 2. Previous Give Up & View Solution O Check Answer Next Exit Hint

Explanation / Answer

we know ,

delta P = height x density x g

P guage = (1.090 m - 0.670 m ) x 13500 kg/m3 x 9.8 m/s2

= 55566 Pa

= 8.06 psig

thus. pressure guage = 8.06 psig

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