Question

What type of stress is placed on folds?

Answer 1

Compression: stresses are directed inward - produces thrust faults, reverse faults, or folding; Tension: stresses directed outward

Answer 2

The stress placed on  the folds is known as the compressional stress. The compressional stress makes the thing to squeeze. When stress is applied from both the sides of an object, it causes the object to fold from the middle because the compressed part has to go somewhere. The compressional stress causes the reverse faults.

Hence, the answer is 'compressional stress'.