(Solved): A differential manometer is connected at the two points \( A \) and \( B \) as shown. At \( B \) ai ...

A differential manometer is connected at the two points \( A \) and \( B \) as shown. At \( B \) air pressure is \( 9.811 \mathrm{~N} / \mathrm{cm}^{2} \) (abs), find the absolute pressure at \( A \) using the following data. - Specific Gravity of oil as 0.9; - Distance, \( C=21 \) cm; - Distance, \( \mathrm{D}=108 \mathrm{~mm} \); Distance, \( \mathrm{E}=0.78 \) m. Solution: i) Air Pressure at \( \mathrm{B}( \) in \( \mathrm{Pa})= \) ii) Pressure above \( X-X \) in the right tube (in \( \mathrm{Pa} \) ) \( = \) iii) Pressure of Mercury above \( X-X \) in the left tube (in Pa) \( = \) iv) Absolute Pressure at \( \mathrm{A} \) (in \( \mathrm{Pa})= \)