A closed rectangular tank is completely filled with water and is accelerated horizontally with an acceleration a towards right. Pressure is (i) maximum at, and (ii) minimum at

Due to acceleration towards right, there will be a pseudo force in a left direction. So the pressure will be more on rear side (Points A and B) in comparison with front side (Point D and C). Also due to height of liquid column pressure will be more at the bottom (points B and C) in comparison with top (point A and D). So overall maximum pressure will be at point B and minimum pressure will be at point D.