12. Relay Pumping Operations

Question 1

Apparatus equipped with pressure governors should be set in____ mode when acting as the attack pumper or and in_____ mode while working as a relay pumper.

Answer 1

Pressure

RPM

Pace 433

Question 2

Driver should refer to NFPA____ for further information regarding the placement relief valves.

Answer 2

NFPA 1962

435

Question 3

These appliances are intended to enhance firefighter safety and reduce the possibility of damage to the pump and other water supply components that may be caused by water hammer when valves are operated to quickly or intake pressure rises dramatically.

Answer 3

Relief valves
(relay relief valves)

Pace 435

Question 4

Relay pumping operations that require the use of later arriving companies to achieve the required flow can set up an initial operation of lesser volume and greater spacing with______ placed in the relay line awaiting the arrival of incoming pumpers.

Answer 4

Inline relay valves

Page 436