Term
| Pressurized systems, static water sources |
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Definition
| What are the two ways you can obtain water from? |
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Term
| establish a adequate water source |
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Definition
| What is the primary objective to support the fire attack? |
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Term
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Definition
| What allows water to flow, puddle, and remain together event after leaving the nozzle? |
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Term
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Definition
| As water passes through or move a substance, the positive and negative charges of the molecule take the various chemicals, minerals, and solvents along with it, thus earning water the title of what? |
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Term
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Definition
| Substances dissolved in water are referred to as what? |
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Term
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Definition
| What has the highest specific heat indexes of any known chemical compound? |
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Term
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Definition
| How many pounds per gallon does water weigh as a liquid? |
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Term
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Definition
| At what temperature does water begin to boil at sea level |
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Term
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Definition
| The amount of particulate matter suspended in water is known as what? |
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Term
| Water source, treatment plant, and distribution system |
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Definition
| A municipal water system consists of what three components? |
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Term
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Definition
| What complex network of underground pipes delivers water from the treatment plant to the end users and fire hydrants? |
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Term
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Definition
| Hydrants should have a minimum operating pressure of what psi? |
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Term
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Definition
| A system where the water source, treatment plant, and storage facilities are located on high ground while the end users live in low lying areas are called what? |
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Term
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Definition
| What carries large quantities of water to a section of the town or city? |
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Term
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Definition
| What are smaller mains that distribute water to a smaller area? |
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Term
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Definition
| What carries large quantities of water to a section of the town or city? |
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Term
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Definition
| What are smaller mains that distribute water to a smaller area? |
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Term
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Definition
| What is the smallest pipes that carry water to hydrants along individual streets? |
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Term
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Definition
| What supplies water from only one direction in a distribution system? |
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Term
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Definition
| When water is not moving it has what? |
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Term
| Fluid pressure is exerted perpendicular to any surface on which it acts |
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Definition
| This means that the pressure of the water acts at right angles on its container. What principal is this? |
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Term
| Pressure in a fluid acts equally in all directions |
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Definition
| When filling a fire hose with water, the pressure inside is equal in all directions and fills the hose to the shape of the container. What principal is this? |
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Term
| pressure applied to a confined fluid from without is transmitted equally in all directions |
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Definition
| If the top of a cylinder was closed and 100psi of pressure was applied to the top, the top of the water would also have 100psi and the water at the very bottom would have a pressure of 100.434psi. What principal is this? |
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Term
| The pressure of a liquid in n open vessel is proportional to the depth of the liquid |
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Definition
| If you have a cylinder filled with water that is 1ft. tall the pressure at the bottom will be .434, if you have a cylinder filled with water at 2ft. tall the pressure will be .868psi. What principal is this? |
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Term
| The pressure of a liquid in an open container is proportional to the density of the liquid |
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Definition
| Different liquids have different densities, so the pressure they exert at the same elevation also differs. What principal is this? |
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Term
| Liquid pressure on the bottom of a container is unaffected by the size and shape of the container |
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Definition
| Only the distance between the top and the bottom of the liquid, not the shape and size of the container has any effect on the pressure. What principal is this? |
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Term
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Definition
| Pressure in a system when water is not moving is called what? |
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Term
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Definition
| Atmospheric pressure decreases how many psi every 1000ft. that the geographic location rises above sea level? |
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Term
| Normal operating Pressure |
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Definition
| Amount of pressure in the distribution system during a period of normal consumption. |
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Term
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Definition
| Amount of pressure that remains in the system when water is flowing is called what? |
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Term
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Definition
| What is considered the minimum usable residual pressure? |
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Term
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Definition
| Forward pressure measured at a discharge opening while water is moving is called what? |
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Term
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Definition
| When water is flowing through hoses, pipes, and fittings the water is slowed by the contact it has with the walls of the hose and pipes, which results in what? |
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Term
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Definition
| Pressure surge or wave caused by the kinetic energy of a fluid in motion when it is forced to stop and change directions suddenly is called what? |
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Term
| Dry barrel and Wet barrel |
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Definition
| What are the two main types of hydrants? |
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Term
| 500ft. for residential and 300 for commercial |
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Definition
| Hydrant are placed how many feet apart in residential and commercial? |
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Term
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Definition
| How often should you check hydrants on a regular basis? |
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Term
| Visibility and accessibility |
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Definition
| What is the first factors o check when inspecting a hydrant? |
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Term
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Definition
| NFPA 291 requires how many inches from the center of a hose outlet to the finish grade? |
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Term
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Definition
| What class and color is less than 500 GPM from a hydrant? |
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Term
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Definition
| What class and color is 500 to 999 GPM's from a hydrant? |
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Term
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Definition
| What class and color is 1000 to 1499 GPM's from a hydrant? |
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Term
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Definition
| What class and color is 1500 GPM from a hydrant? |
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Term
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Definition
| What is the second part when inspecting a fire hydrant? |
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Term
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Definition
| What is used to measure flow pressure in PSI and to calculate the flow in GPM's? |
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Term
| Water Distribution systems peak flow times |
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Definition
| When should hydrant flow testing be conducted? |
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