Class 4 (4th Engineer) MEKG 📅 Sep 2024

Exam Question

A distinguishing feature of an eductor, when compared to other pumps, is the

(a) discharge end being smaller than the suction end

(b) small size of impeller

(d) ease at which the wearing rings may be changed

Briefly justify your answer.

Reference Answer

### Correct Answer and Justification
The correct answer is **(c) lack of moving parts**.
An eductor, also known as a jet pump or ejector, is fundamentally distinguished from conventional pumps (such as centrifugal, gear, or piston pumps) by its complete absence of mechanical moving components. This unique characteristic is a direct result of its principle of operation.
### Principle of Operation of an Eductor

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