Pumps

Question 1

Reciprocating pumps are:

a) Rotary

b) Static

c) Centrifugal

d) Positive Displacement

e) None of the above

Answer 1

d) Positive Displacement

Question 2

Centrifugal pumps are:

a) Volute

b) Diffuser

c) Axial flow

d) Mixed Flow

e) All of the above

Answer 2

e) All of the above

Question 3

Positive Displacement pumps include:

a) Gear Pumps

b) Lobe Pumps

c) Sliding Vane pumps

d) reciprocating pumps

e) All of the above

Answer 3

e) All of the above

Question 4

Rotary pumps include

a) Gear pumps

b) Lobe Pumps

c) Sliding Vane pumps

d) All of the above

e) None of the above

Answer 4

d) All of the above

Question 5

Two classifications of pumps are:

a) Rotary and external gear

b) Reciprocating and plunger

c) Dynamic and Positive Displacement

d) Volute and diffuser

Answer 5

c) Dynamic and Positive Displacement

Dynamic Pumps (Kinetic Pumps)
Dynamic pumps operate by imparting velocity (kinetic energy) to the fluid, which is then converted into pressure. These pumps rely on continuous flow and are ideal for applications where large volumes of fluid are being moved at relatively low pressures.

Centrifugal Pumps
Axial Flow Pumps

Positive Displacement Pumps
Positive displacement pumps move a fixed amount of fluid with each cycle. These pumps operate by trapping a set volume of fluid and forcing it through the pump mechanism into the discharge pipe. PD pumps are capable of generating higher pressures than dynamic pumps and are better suited for applications where precise, controlled flow is important.

Gear Pumps
Screw Pumps
Vane Pumps