When measuring small pressure differences with a manometer, often one arm of the manometer is inclined to improve the accuracy of reading. (The pressure difference is still proportional to the vertical distance and not the actua length of the fluid along the tube.) The air pressure in a circulat duct is to be measured using a manometer whose open arm is inclined 45^∘ from the horizontal, as shown in Fig. P 1-112 . The density of the liquid in the manometer is 0.81  kg / L, and the vertical dista

A manometer is used to measure the pressure difference between points A andB in a pipe as shown. Water flows in the pipe and the specific gravity of the manometerfluid is 3. The distances and manometer deflection are indicated on the figure. Find (a)the pressure differences pA - pB, and (b) the difference in piezometric pressure, pz,A -pz,B. Express both answers in kPa. γwater = 9810 N/m^3.

manometry-example-problems