2. In a study of work times, when we consider the time used to perform a task by a trained operator, in a productive environment considered normal, with an established work system, we are talking about:
1.? Historical times
3. ? Standard times.
2. ? Default times
3. The stored products or inventories are:
3. ? A supply of materials whose main purpose is to facilitate the continuity of the production process and or satisfy customer orders.
