Red Seal Millwright 433A Practice Test
433A Pumps and Compressors
What is the difference between a centrifugal pump and a positive displacement pump?
Select your answer
A
Centrifugal pumps are always larger
B
A centrifugal pump uses an impeller to impart velocity energy that converts to pressure, while a positive displacement pump traps and moves a fixed volume of fluid per cycle
C
Positive displacement pumps cannot handle high pressures
D
Centrifugal pumps have no rotating parts
Hint
