92F Military Occupational Specialty Training Test 1 Practice 2026 - Free MOS Practice Questions and Study Guide

The word describes the part of a centrifugal pump housing that surrounds the flow path as fuel moves through the system. The volute is the spiral, inner casing that collects the liquid after it leaves the impeller and directs it toward the discharge. As fuel travels through this gradually expanding passage, its velocity drops and its pressure rises, making it ready for delivery to the rest of the system. This specific component differs from a general casing, which is just the outer shell; from the impeller, which is the rotating element that adds energy to the fluid; and from a manifold, which is a junction that distributes or collects fluid. So, the inner casing where fuel is held and guided is the volute.