Each duplicate vacuum pump must provide what percentage of airflow?

Each duplicate vacuum pump must provide what percentage of airflow?

• A. 50% airflow
• B. 75% airflow
• C. 100% airflow
• D. 125% airflow

Answer: (C)

Redundancy is the idea here: in a duplicate vacuum-pump setup, each pump is designed to deliver the full amount of airflow the system needs, so the system still meets demand if one pump is offline. That's why each pump must provide 100% airflow. If a pump could only do 50% or 75%, the other pump would have to take on the entire load during a failure, which could exceed what the remaining unit can handle and reduce performance. Giving more than 100% per pump isn’t necessary or typical, since two pumps running would already exceed the required flow. So 100% airflow per pump is the standard.

Redundancy is the idea here: in a duplicate vacuum-pump setup, each pump is designed to deliver the full amount of airflow the system needs, so the system still meets demand if one pump is offline. That's why each pump must provide 100% airflow. If a pump could only do 50% or 75%, the other pump would have to take on the entire load during a failure, which could exceed what the remaining unit can handle and reduce performance. Giving more than 100% per pump isn’t necessary or typical, since two pumps running would already exceed the required flow. So 100% airflow per pump is the standard.