The ______ enters the centre of the impeller and is ______ by the ______ force toward the ______ where it enters the ______.

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Multiple Choice

The ______ enters the centre of the impeller and is ______ by the ______ force toward the ______ where it enters the ______.

Explanation:
In a centrifugal compressor stage, the flow enters the center (eye) of the impeller and is accelerated outward by the centrifugal force toward the outer periphery. That outward acceleration places the flow into the diffuser, where its velocity is slowed and the pressure is increased before it moves on. This sequence—center entry, outward acceleration by centrifugal force, entry into the diffuser—is exactly what the sentence describes. The other options mix in incorrect media (fuel), incorrect forces (gravity or centripetal in the wrong context), or wrong flow directions, so they don’t match how a centrifugal impeller and diffuser operate.

In a centrifugal compressor stage, the flow enters the center (eye) of the impeller and is accelerated outward by the centrifugal force toward the outer periphery. That outward acceleration places the flow into the diffuser, where its velocity is slowed and the pressure is increased before it moves on. This sequence—center entry, outward acceleration by centrifugal force, entry into the diffuser—is exactly what the sentence describes. The other options mix in incorrect media (fuel), incorrect forces (gravity or centripetal in the wrong context), or wrong flow directions, so they don’t match how a centrifugal impeller and diffuser operate.

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