question_answer

Consider the following pumps:

1. Centrifugal pump, single-stage

2. Centrifugal pump, multi-stage

3. Reciprocating pump

4. Jet pump

The pump (s) which can be used to lift water through a suction head of 12 m from a well would include:

A) 2 alone             

B) 1, 3 and 4

C) 4 alone             

D) 1 and 3