The thickness of a
reinforced brick partition wall is generally kept at 15 cm. This is because 15 cm is the minimum thickness required to provide adequate structural support for the wall. Additionally, 15 cm is a common standard thickness for brick walls, so it is easy to find bricks and other materials that are the correct size.Option A: 5 cm is too thin for a reinforced brick partition wall. A wall of this thickness would not be able to provide adequate structural support and would be likely to collapse.
Option B: 10 cm is a common thickness for non-reinforced brick partition walls. However, for a reinforced brick partition wall, 10 cm is not thick enough to provide adequate structural support.
Option C: 15 cm is the minimum thickness required to provide adequate structural support for a reinforced brick partition wall. It is also a common standard thickness for brick walls, so it is easy to find bricks and other materials that are the correct size.
Option D: 20 cm is a common thickness for reinforced concrete walls. However, for a reinforced brick partition wall, 20 cm is not necessary and would add unnecessary weight to the wall.