The archmedian screw is pumps material by? Answer - A bolt threaded screw in an
enclosed cylinder or open trough
If material being pumped needs to remain at a certain temperature ________ pipes
are used Answer - Insulated
Centrifugal pumps are good for pumping waste because of Answer - Low head
pumping requirements and the ability to pass small particles
Which is the most well suited pump for pumping high viscosity material? Answer -
Positive displacement pumps
Greases, heavy mastics, cement, and similar materials are most often pumped by
Answer - Piston pumps (solids pumping system)
In a suction lift pump installation... Answer - The eye of the impeller is above the
fluid
In pumping systems, the sum of the total static head, head loss, and velocity head is
called? Answer - Total dynamic head (TDH)
The horsepower input to a centrifugal pump is referred to as? Answer - Brake
horsepower
Before you can look at specific efficiency curves of a centrifugal pump, you must first
know the ________ and the _________ Answer - The speed of the shaft; the
diameter of the pumps impeller
The ________ curve will tell you at what total head the best energy transfer in a
centrifugal pump will take place Answer - Efficiency
Multistage pumps build up ______ of the fluid with each stage until the desired head
is reached Answer - Velocity
The open impeller is used primarily for pumping fluids containing __________
Answer - Large solids
Wearing rings prevent damage to the _______ and _______ Answer - Impeller and
casing