There are several types of loading in engineering, which refer to the various forces or stresses that a structure or material may be subjected to. Some common types of loading include:

1. Dead load: This refers to the weight of the structure itself, as well as any permanent attachments or fixtures.

2. Live load: This refers to the weight of any temporary or movable loads, such as people or vehicles.

3. Wind load: This refers to the force exerted on a structure by wind, which can vary depending on the wind speed and direction.

4. Snow load: This refers to the weight of snow that may accumulate on a structure, which can vary depending on the location and climate.

5. Earthquake load: This refers to the forces exerted on a structure during an earthquake, which can be complex and unpredictable.

6. Thermal load: This refers to the expansion and contraction of a structure or material due to temperature changes.

7. Hydrostatic load: This refers to the pressure exerted by a fluid, such as water or oil, on a structure or material.

8. Impact load: This refers to the sudden force exerted on a structure or material, such as from a collision or impact.