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rt LTLu y m pi dt punt e density O 16-0.084ILIMOUS aInan nuunsPaulainsaid aun auuunyTTEST EXAM 2Examine the pressure measuring device shown in the figure. What isthe gauge pressure reading in psi at point @? The density of C7H16=0.684g/cm3Pressure = 15.5 psiaGage pressure ?A105 mm-C7H16Air63 mmH2O111 mm

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rt LTLu y m pi dt punt e density O 16-0.084
ILIMOUS aInan nuunsPaulainsaid aun auuunyT
TEST EXAM 2
Examine the pressure measuring device shown in the figure. What is
the gauge pressure reading in psi at point @? The density of C7H16=
0.684g/cm3
Pressure = 15.5 psia
Gage pressure ?
A
105 mm
-C7H16
Air
63 mm
H2O
111 mm
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rt LTLu y m pi dt punt e density O 16-0.084 ILIMOUS aInan nuunsPaulainsaid aun auuunyT TEST EXAM 2 Examine the pressure measuring device shown in the figure. What is the gauge pressure reading in psi at point @? The density of C7H16= 0.684g/cm3 Pressure = 15.5 psia Gage pressure ? A 105 mm -C7H16 Air 63 mm H2O 111 mm

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Step 1

Absolute pressure at A is,

P (15.5psia)+hAg+hpg
(15.5psia)+(0.105m)(684 kg/m2)(9.8m/s2) + (0.063m) (1000 kg/m) (9.8m/s2)
(15.5psia)(1321.236 N/m2)
(15.5psia)+(0.19163 psia)
15.692psia
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P (15.5psia)+hAg+hpg (15.5psia)+(0.105m)(684 kg/m2)(9.8m/s2) + (0.063m) (1000 kg/m) (9.8m/s2) (15.5psia)(1321.236 N/m2) (15.5psia)+(0.19163 psia) 15.692psia

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Step 2

Gauge pressure is,

...
gauge
atm
(15.692psia)-(14.696 psia)
0.996 psia
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gauge atm (15.692psia)-(14.696 psia) 0.996 psia

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