Pumps

Question 1

What are the two pump classifications?

Answer 1

Positive displacement and Dynamic

Question 2

What two categories fall under Positive Displacement pumps?

Answer 2

Rotary and reciprocating pumps

Question 3

Name the eight pumps that fall under the rotary pumps category.

Answer 3

Gear
Lobe
Screw
Sliding Vane
Progressive Cavity
Diaphragm 
Peristaltic
Internal Gear

Question 4

What are the two sub categories that fall under reciprocating type pumps?

Answer 4

Piston type and Plunger type

Question 5

Name the four types of piston pumps

Answer 5

simplex
duplex
triplex
quadruplex

Question 6

Name the two types of plunger piston

Answer 6

Single stage and multi stage.

Question 7

What is the definition of a pump?

Answer 7

A device to force a gas or liquid to move in a particular direction.

Question 8

What two categories fall under dynamic pumps?

Answer 8

Regenerative (turbine) and Centrifugal

Question 9

Name the four types of centrifugal pumps.

Answer 9

Volute
Diffuser
Axial flow
Mixed flow

Question 10

What is the difference between turbine and centrifugal pumps?

Answer 10

The main difference is that the fluid only travels through a centrifugal impeller once, while in a turbine it takes many trips through the vanes.

Question 11

What are diffusion pumps?

Answer 11

uses a high speed jet of vapour to direct gas molecules in the pump throat down into the bottom of the pump and out the exhaust

Question 12

In what industries might you find lobe pumps?

Answer 12

They are used in the pulp and paper industry, chemical, food, pharma and biotech.

Question 13

What is an advantage of a lobe pump?

Answer 13

They can handle solids, slurries and pastes.

Question 14

Where might you find a progressive cavity pump also know as eccentric screw pump?

Answer 14

Used for well drilling.

Question 15

Applications for a screw pump?

Answer 15

Irrigation systems and agricultural machinery for transporting grain and other solids.

Question 16

What is the definition of a positive displacement pump?

Answer 16

Causes a fluid to move by trapping a fixed amount of it of it then forcing that trapped volume into the discharge pipe.

Question 17

What is the definition of a rotary pump?

Answer 17

Move fluids using the principle of rotation. The vacuum created by the rotation draws the fluid.

Question 18

What are the uses of a rotary vane pump?

Answer 18

Common uses of vane pumps include high pressure hydraulic pumps, supercharging and power steering. It can also be used in low pressure applications such as air conditioners.

Question 19

Uses of a gear pump?

Answer 19

Used commonly for hydraulic fluid power applications. Also used for chemical installations to pump fluid with a certain viscosity.

Question 20

What are the uses of an axial piston pump?

Answer 20

used to power skid loading machines or drive the screws of torpedoes.