Final answer:
The equipment prepared for emergency use is known as an emergency kit, which contains essential items for survival and first aid. It is essential in various emergency situations and laboratory settings, where knowing the location of safety equipment like fire extinguishers is also critical (option 1).
Step-by-step explanation:
The equipment prepared in advance for emergency use is commonly called an emergency kit. It is a collection of supplies and tools assembled for emergency use, especially during critical situations where immediate access to necessary items is essential. This kit is designed to aid in survival, provide first aid, and enable a response to emergency situations more effectively. Examples of items typically found in an emergency kit include basic first aid supplies, flashlights, batteries, blankets, and sometimes specialized items depending on the intended use, such as tools to start a fire or signaling devices.
In a laboratory setting, it is also crucial to know the locations of safety equipment like fire extinguishers and eyewash stations. This equipment is vital for addressing specific emergencies that could occur in such an environment.
Hence, the answer is option 1.