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Check the fuel pump fuse and relay first. If the fuse and relay are good then the pump is defective. No fire it a totally different issue and can be many things.
Pump
The fire pump churn test, is when an operator runs the fire pump without the flow of water
A jockey pump is a small pump connected to a fire sprinkler system and is intended to maintain pressure in a fire protection piping system to an artificially high level so that the operation of a single fire sprinkler will cause a pressure drop which will be sensed by the fire pump automatic controller, causing the fire pump to start. The jockey pump is essentially a portion of the fire pump's control system.
Did you mean Jockey Pump which is a small pump connected to a fire sprinkler system and intended to maintain pressure in a fire protection piping system to an artificially high level so the operation of a single fire sprinkler will cause a drop in pressure that will be sensed by the fire pumps automatic controller, causing the fire pump to start. The Jockey Pump is essentially a portion of the fire pumps control system.
either a leaking fuel injector, or a failed fuel pump
Ctesibus of Alexandria is credited with inventing the first fire pump around the 2nd century BC. Arguably, all fire apparatus since then can be more or less traced to him.
Not a lot. A fire fighting pump found on most fire engines is the centrifugal type. Other than the amount of water it may flow and the number of discharges it can supply, there is no difference (although I'm not sure what "ordinary centrifugal pump" refers to unless it is a trash or sump pump). Centrifugal type pumps weren't always used in the fire service, but they are the standard now because they can spin (they can pump or maintain pressure) even when there is no water actually flowing.
Centrifugal Pump
You aren't supposed to smoke the fuel pump
$900.00
when there is a fire the fire engine pulls up and hopefully connects a hose to a fire hydrant and that brings water into the engine. The fire engine then pumps the water from the hydrant to the engine and finally to the hoses and they help pump water up to the hose to stop a fire.