Final answer:
Employees who see a smoke, fire, flood or an accident must report it immediately and may administer first aid if trained. They should not attempt to conduct rescues beyond their training, as this is the role of firefighters and other professionals equipped with specialized gear for such emergencies.
Step-by-step explanation:
When an employee witnesses a smoke, fire, flood, or an accident on the system, their responsibility is to act promptly and safely to mitigate the situation. They should immediately report the incident to their superiors using two-way radios to get further instructions. While waiting for emergency services, they can administer first aid to any injured persons if they are trained and it is safe to do so. It's important to stress that only trained individuals should engage in rescue efforts. Firefighters are equipped with fire-resistant clothing and breathing apparatus which allow them to rescue victims from burning buildings and assess fires safely.
In the event of witnessing a serious hazard, employees should not attempt to handle the situation beyond their training or put themselves at risk. Proper channels of communication and immediate reporting are vital for the safety of both the victims and the employees themselves. Rescue operations should be left to trained professionals who are capable of entering high-risk areas and performing rescues effectively and safely.