Hydrants
The two major hydrant types.
What are wet and dry barrel hydrants?
Before beginning the daily inspection, this should be reviewed to note any existing issues with the apparatus.
What is the inspection records?
If pressure doesn't immediately begin to build, operate this to remove possible air pockets in the pump.
What is the pump primer?
Name the three methods of moving water in a system.
What are direct pumping system, gravity system, and a combination system?
The pressure created by a column of water due to elevation is known as this.
What is Head pressure?
Wet barrel hydrants have water in this up to the valves of each outlet.
What is the barrel?
Check all battery connections for these two things.
What is tightness and corrosion?
Setting this will help alleviate a pressure surge once the transfer to a pressurized water source is performed.
What is the pressure governor?
Most communities use this/these systems.
What is a combination system?
The loss of pressure created by the turbulence of water moving against interior walls of a pipe or hose is this.
What is friction loss?
Wet barrel hydrants are primarily found in these two states.
What are FLorida and California?
The five major fluids in an apparatus.
What is oil, coolant, water, transmission fluid and hydraulic fluid?
Keep the fire pump cool by cracking this open.
What is the tank-fill valve?
A fire hydrant that receives water from only one direction is known as this.
What is a dead end hydrant?
In general the larger the hose, the blank the friction loss.
What is the smaller the friction loss?
In general, all hydrant bonnets, barrels, and foot pieces are made of this.
What is cast iron?
Transmission fluid is responsible for doing these three things.
What is cools, lubricates and transmits hydraulic power?
Name the four indicators of pump cavitation.
What are drops in pressure or fluctuating pressure observed on the master discharge, pulsating hose streams, abrupt increase in engine speed, and abnormal sounds in the pump?
These are large pipes with relatively widespread spacing that convey large quantities of water to a system.
What are primary feeders?
This is the most effective way to reduce friction loss.
What is increase the size of the hose?
Where possible, hydrants should be placed at least how many feet from a building.
What is 50 feet?
The driver/operator should test the apparatus fire pump weekly to ensure proper operation of these three things.
What are the primer, pressure governor and pump?
What is an air leak?
When relay pumping, the apparatus with this should be located at the water source.
What is the greatest pumping capacity?
Four factors of friction loss are...
What is gallons per minute, diameter of hose, length of hose and elevation (head pressure)?