The tank shown in figure below is closed at top and contains air at a pressure at top and contains air at a pressure of PA. The manometer have mercury as the manometric fluid. The value of PA for the manometer readings shown will be

The tank shown in figure below is closed at top and contains air at a

1.	The tank shown in figure below is closed at top and contains air at a pressure at top and contains air at a pressure of PA. The manometer have mercury as the manometric fluid. The value of PA for the manometer readings shown will be
A.	-3.573 kPa
B.	-4.573 kPa
C.	-6.573 kPa
D.	-7.573 kPa
Answer» B. -4.573 kPa