Chapter 12

Question 1

Using two or more pumpers to move water over a long distance by operating them in series water discharge from one pumper flows through hoses to the inlet of the next pumper and so on is called?

Answer 1

Relay Operation

Question 2

Centrifugal pumps are rated to pump at their maximum volume capacity of _____ PSI at draft, 70% of their maximum at ______ psi and 50% of their maximum at _______ psi at draft

Answer 2

150 psi
200 psi
250 psi

Question 3

What is the open relay method?

Answer 3

Consists of deploying portable folding drop tanks at each intake for pumpers in the relay operation and eliminates the pressure surges and inconsistent supply sometimes found and closed relays

Question 4

What determines the need for relay pumping?

Answer 4

Is determined by the amount of water required at an incident in the distance between the incident scene and the water source