Question 19 of 30
The reciprocating pump creates a suction effect when there is a
decrease in pressure
increase in pressure
no change in pressure
decrease or an increase in pressure **Correct answer : decrease in pressure**
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Answer & Explanation
The correct answer is Option A: decrease in pressure.
A reciprocating pump operates by the motion of a piston or plunger. When the piston moves to expand the volume of the pump chamber, it creates a decrease in pressure (a vacuum), which draws the fluid in through the suction valve.