Correct option is C
A
floating foundation (also known as a
raft foundation) is a type of foundation where the weight of the structure being built is balanced by the weight of the soil removed during excavation. This type of foundation is used to reduce settlement and is particularly useful in weak or compressible soil conditions.
A normal foundation which can raise and float during floods: Incorrect, as this describes a different concept.
A foundation floating on water like barges: Incorrect, as this describes a floating structure, not a floating foundation.
A foundation in which new loads due to the structure are equal to the weight of the soil removed by excavation: Correct, as it describes the concept of a floating foundation or raft foundation.
A foundation cannot be floating type under any condition: Incorrect, as floating foundations are indeed used in specific conditions.
Therefore, the correct answer is (c) A foundation in which new loads due to the structure are equal to the weight of the soil removed by excavation.