Final answer:
The 310 litre oxygen bottles are typically located in medical facilities, hospitals, ambulances, and for certain tasks, they may also be used in diving operations.
Step-by-step explanation:
The 310 litre oxygen bottles are typically located in medical facilities, hospitals, ambulances, and for certain tasks, they may also be used in diving operations. These bottles contain a large amount of oxygen that can be used for various purposes, including medical treatment and emergency situations.