Engine: Expired / General Subjects

1. A Decreasing the temperature gradient in the weld area and relieving internal stresses.
2. B Increasing the temperature gradient in the weld area and relieving internal stresses.
3. C Decreasing the temperature gradient in the weld area and intensifying internal stresses.
4. D Increasing the temperature gradient in the weld area and intensifying internal stresses.

Tip: press A-D to answer