Question

A footing made for single column is called

• A. isolated footing
• B. combined footing
• C. continuous footing
• D. spread footing

Answer 1

Answer:

A. isolated footing

A footing made for two adjacent columns is called combined footing. When both columns of a combined footing carry equal load, rectangular combined footing is adopted. When the columns of a combined footing carry different levels of loads trapezoidal combined footing is adopted.' A footing made for more than 2 columns is called continuous footing. Mat or raft foundation saves a building from differential settlement. The foundation cast using steel H-sections is called grillage footing. Grillage footing used to carry heavy concentrated load.