Question

Match List-I with List-II. List-I Type of Pump: A. Mixed flow pump, B. Axial flow pump, C. Centrifugal pump, D. Hydraulic Ram. List-II Detail: I. The wheel generally resembles the blade element that generates forced vortex flow, II. Pump has high discharge capacity but has low head and limited suction capacity, III. Pump which does not require any external power for its operation to raise water, IV. The inlet and outlet edge of the blades are inclined to the axis of rotation.

• A. A-III, B-II, C-I, D-IV
• B. A-IV, B-II, C-III, D-I
• C. A-IV, B-II, C-I, D-III
• D. A-II, B-III, C-I, D-IV

Hint:

Hydraulic ram uses water hammer effect and does not require external power.

Answer 1

The Correct Option is C

Concept:
Different pumps are identified by flow direction, impeller design and energy requirement.

Step 1: Mixed flow pump.
In a mixed flow pump, inlet and outlet blade edges are inclined to the axis of rotation. \[ A\rightarrow IV \]

Step 2: Axial flow pump.
Axial flow pump gives high discharge but low head and limited suction capacity. \[ B\rightarrow II \]

Step 3: Centrifugal pump.
Centrifugal pump has an impeller or wheel that generates forced vortex flow. \[ C\rightarrow I \]

Step 4: Hydraulic ram.
Hydraulic ram does not require external power for lifting water. \[ D\rightarrow III \] Therefore: \[ A-IV,\ B-II,\ C-I,\ D-III \] \[ \therefore \text{Correct Answer is (C)} \]