Question

In which pump the inlet and outlet edge of the blades are inclined to the axis of rotation?

• A. Mixed flow pump
• B. Axial flow pump
• C. Centrifugal pumps
• D. Diffuser casing pump

Hint:

Mixed flow pump has both axial and radial flow characteristics.

Answer 1

The Correct Option is A

Concept:
Pumps are classified according to the direction of flow of water through the impeller.

Step 1: Understand mixed flow pump.
In a mixed flow pump, water moves partly in axial direction and partly in radial direction.

Step 2: Blade arrangement.
In mixed flow pumps, the inlet and outlet edges of the blades are inclined to the axis of rotation. \[ \text{Inclined blade edges} \Rightarrow \text{Mixed flow pump} \]

Step 3: Compare with other pumps.
In axial flow pumps, flow is mainly parallel to the axis.
In centrifugal pumps, flow is mainly radial. Therefore, the correct pump is: \[ \text{Mixed flow pump} \] \[ \therefore \text{Correct Answer is (A)} \]