What do you call a pump that has both pressure and scavenging capabilities?

• A. A Dual-Element Pump
• B. A Multi-Element Pump
• C. Both A and B
• D. A Single-Element Pump

Answer: (C)

A pump with both pressure and scavenging capabilities is referred to as a multi-element pump, and it can also be known as a dual-element pump. This type of pump is designed to perform two functions: it pressurizes the fluid to supply it for various systems, such as fuel injection, and scavenges or returns any unneeded or excess fluid back to the storage or fuel tank to maintain efficiency and enable continuous operation.

The dual-element designation indicates the presence of two separate elements within the pump that can handle these dual functions simultaneously. Therefore, it is possible to refer to it as either a dual-element pump or a multi-element pump, illustrating the versatility and design of such pumps in various applications, particularly in aviation settings where reliability and performance are critical.

The other options do not accurately reflect the capability of handling both pressure and scavenging within the same pump. Singular configurations or dual configurations designed purely for pressure or scavenging do not combine these essential functionalities.