Can multiple vacuum pumps be joined together to one common exhaust?

The correct answer is that multiple vacuum pumps can be joined together to one common exhaust if they are sized correctly. This is important because proper sizing ensures that the combined output of the vacuum pumps does not exceed the capacity of the common exhaust system. Proper alignment and equal distribution of flow are necessary to avoid back pressure and maintain effective performance.

Using pumps that are not appropriately sized could lead to various operational issues, including inefficient suction, potential damage to the pumps, or inadequate removal of the gases or vapors they are designed to handle. This knowledge is critical for maintaining system integrity and safety in applications involving medical gas lines, where reliability is paramount.

Other options such as not allowing connections, unrestricted joining, or requiring the same model would not address the critical aspect of ensuring that the common exhaust system can handle the combined requirements of the vacuum pumps effectively. Proper design and engineering considerations guide the process of connecting multiple pumps to ensure safety and functionality.