Chpt 12 Flashcards by Fermin Chapa

Atmospheric pressure which is pressure created by the weight of the atmosphere is ______ at sea level

14.7 psi

How well did you know this?

Not at all

Perfectly

As you move up in elevation from sea level and the atmosphere thins or lessens, this supply pressure decreases : the pressure drops approximately ____ for every 1000 ft of elevation above sea level

0.5 psi

How well did you know this?

Not at all

Perfectly

The atmospheric pressure at your drafting site is the maximum supply pressure for

Drafting

How well did you know this?

Not at all

Perfectly

Is any pressure less than atmospheric pressure

Vacuum

How well did you know this?

Not at all

Perfectly

A fire pumper in good condition should be able to develop a vacuum equal to about ______

22 inches

How well did you know this?

Not at all

Perfectly

Is the height that a column of water can be lifted in a quantity considered sufficient to provide reliable fire flow

Dependable lift

How well did you know this?

Not at all

Perfectly

It is generally considered to be 15 ft

Dependable lift

How well did you know this?

Not at all

Perfectly

Is the process of removing air from a fire pump and replacing it with water

Priming

How well did you know this?

Not at all

Perfectly

A ____ is a positive displacement pump used to remove the air from the pump during priming

Priming pump

How well did you know this?

Not at all

Perfectly

The ____ is a small tank that holds the lubricant for the priming pump

Primer oil reservoir

How well did you know this?

Not at all

Perfectly

It is generally located slightly higher than the pump and often enclosed behind an access panel on the side or the top of a fire apparatus

Primer oil reservoir

How well did you know this?

Not at all

Perfectly

The best way to assess the operational readiness of the priming system is to conduct a ____ periodically

Vacuum test

How well did you know this?

Not at all

Perfectly

A fire pump that retains any vacuum for ____ should prime and draft water easily in most situations

5 minutes

How well did you know this?

Not at all

Perfectly

Is a vital part of any fire incident and can become a major part of the incident management system in scenarios where a reliable public water or private water system is not available

Water supply management

How well did you know this?

Not at all

Perfectly

Position reports to the operations section chief and is responsible for ensuring that an adequate supply of water is available to mitigate the incident

Water supply officer

How well did you know this?

Not at all

Perfectly

When drafting water is the chosen method for providing that supply, the ____ of the static water source becomes a primary consideration in the process of selecting an appropriate drafting site

Reliability

How well did you know this?

Not at all

Perfectly

The first consideration in determining the reliability of a static water source is to estimate the _____ of water available

Quantity

How well did you know this?

Not at all

Perfectly

Calculating available water in a non moving source

Q= LxWxDxC

How well did you know this?

Not at all

Perfectly

Calculating available water in a moving source

Q= WxDxVxC

How well did you know this?

Not at all

Perfectly

The next step in determining the reliability of a static water source is to consider the ______ of the water in the static source

Quality

How well did you know this?

Not at all

Perfectly

Never walk on ice without a personal flotation device and safety line unless you know for certain the water is less than

Waist deep

How well did you know this?

Not at all

Perfectly

Clearly it is a good idea to identify drafting sites during _____ efforts rather than waiting for a fire to force you to find one in an emergency situation

Preplanning

How well did you know this?

Not at all

Perfectly

The installation of ____ should be considered in areas where access is difficult or when a location would make an ideal drafting site that could be used frequently

Dry hydrants

How well did you know this?

Not at all

Perfectly

Dry hydrants can be required, in local fire prevention codes to be installed by the property owner to provide quick access to _____

Static water supplies

How well did you know this?

Not at all

Perfectly

Consider placing _____ near static water sources whenever accessing these sources with a fire pumper is not possible

Portable pumps

May be used when the water is not deep enough to allow the use of conventional hard sided drafting supply lines

Floating pumps

Another option for drafting from relatively shallow flowing water sources is to place a ___ in a stream bed

Dam

Whenever you have multiple, strong options for possible drafting sites, the best choice, is determined by the _____

Location and the purpose of the drafting operation

The next step in the process of obtaining a water supply from a static water source is establishing a pumping operation from a

Draft

The first step in establishing a drafting operation is to locate an _____

Appropriate water source

The ____ is most commonly used for deep water sources in which you are confident that the strainer will not be able to contact the bottom of the source or large debris fields

Barrel strainer

Are cylindrically shaped, generally 10 inches to 16 inches long, and made of aluminum

Barrel strainers

Is designed for use in clean, shallow water sources

Low level strainers

A ____ is used primarily when drafting from a portable tanks because the water is free from debris and the strainer can touch the bottom without fear of dirt or silt entering the pump

Low level strainer

Is designed to operate below the surface scum and above weeds, dirt, and silt in the water source

Floating strainer

This type of strainer is ideal for water sources in which the depth or the bottom quality is unknown

Floating strainer

When you are using a barrel strainer, there should be at least _____ of water in all directions around the strainer

24 inches

The low level and floating strainers are designed to operate in shallow conditions and require only ______ of water depth

24 inches

The first step is preparing to draft from a water source is to find the _____

Water source

A _____ is a small diameter hoseline that remains in the open position and continues flowing water during the entire drafting operation

Dump line

Another problem you may encounter during drafting operations is ________, which occurs when you attempt to flow water faster than it is being supplied to the pump

Cavitation

Cavitation during drafting operations is usually caused by a _____, which introduces air into the intake water supply

Vacuum leak

The second leading cause of cavitation is a ____

Plugged intake screen

Failure of the pump to prime is one of the most common problems that occurs during _____

Drafting operations

The fire pump on your fire apparatus should prime in _____ or less in most cases

30 seconds

Often a worn tank to pump valve will be the source of a

Vacuum leak

Establishing an uninterrupted ____ is one of the most important objectives for any IC

Water supply

In many rural or remote areas of a jurisdiction, water must be carried to the fire scene in an operation called a ____

Water shuttle

A ____ is a location where the tankers can get their water tanks filled, such a hydrant, a pond, a lake, or a river.

Fill site

A ____ is where the tanker can offload the water

Dump site

A _____ is any location at which a tanker can be filled, such as a hydrant, pond, a lake, or a river.

Fill sites

It is wise to select a drafting site that, if possible allows tankers in the shuttle operation to enter and exit without having to

Back up or turnaround

Fill sites utilizing a _____ are often the most reliable due to their unobstructed access and the quantity and quality of the water they offer

Hydrant

Using a hydrant as a fill site can be a very simple operation, especially if you find a suitable hydrant that has a flow pressure of at least ____

50 psi

Establishing a suitable drafting site for a portable pump requires ____ of water in all directions around the strainer and enough hose to get the water to the fill site

24 inches

When an inaccessible area will serve as a fill site, the use of some type of portable pump that discharges water into a portable tank is a highly practical means of obtaining a ______

Water supply

Tankers are specialized types of fire apparatus that carry several hundred or several thousand gallons of water which can weigh more than _______

80,000 pounds

The location at which the shuttled water will be off loaded is called a

Dump site

Large parking lots and fields that are flat and smooth can make excellent locations for

Dump sites

The ideal _____ location is close enough that the source pumper can supply the attack pumper without a relay pumper but not close that the tankers cannot access it

Dump site

Are usually carried on tankers and should hold as much water as the capacity of the tanker will allow

Portable tanks

Provide a source of water that is free from debris and not subject to the effects of stream currents and unknown shore soil conditions

Portable tanks

The ____ is a large opening sometimes as large as 12 to 16 inches that is connected directly to the tank and allows it to be emptied quickly, in some cases less than one minute

Dump valve

Once the tanker is positioned at the dump site, unloading it through a ____ is the easiest strategy to implement

Dump valve

In older tankers, the water is released ____ by personnel at the dump tank. This is one of the most common methods used to offload a tanker

Manually

The main objective in moving water from one tank to another when using multiple tanks is to keep the main portable tank _____

Full

After the source pumper has established a draft from this static source water supply, all efforts should be taken to prevent air from being introduced into the pump which explains why it is preferred that dumping operations are done in one tank while the drafting takes _____

Place in another

Establishing a smooth ____ will improve efficiency and increase safety around the dump site the tankers will need to make fewer moments if they do not have to back up to reposition themselves for offloading

Traffic pattern

All tankers should travel the same path to enter and then exit the

Dump site

A _____ that flows in a semi circular direction will be the most efficient because the vehicles will not be traveling on the same roadway in opposite directions

Traffic plan

The operation of offloading a tanker into another tanker or into a pumper as form of a water source is called a

Nurse tanker operation

A ____ is set up when there is no room to establish a dump site, relay operation, or a combination of the two

Nurse tanker operation

The ideal nurse tanker is the ______ tanker that is available, as it will serve as the primary source of water for the fire attack operation

Largest

Tractor trailer tankers which can carry as much as _____ of water are very good choices for this operation because they can be supplied by smaller tankers through a second nurse tank operation

6000 gallons

Water supply officers should be given ___ at any scene

Top priority

Is responsible for establishing the dump site, creating traffic patterns, and ensuring that the source pumper at the site has a sustained water supply

Dump site officer

Is responsible for establishing the fill site location ensuring that the water source for filling the tankers will meet the demand and creating the traffic patterns in and out of the fill site

Fill site officer

When you check the primer oil level in the reservoir, you should also confirm that the _____ is not clogged

Anti siphon hole

This very small hole is found in the fitting on top of the primer oil reservoir or in the top of a loop in the lubrication line leading to the priming pump

Anti siphon hole

Several factors must be considered when you are determining the reliability of a static water source namely, ________,_________, and ______in the static water source

Accessibility, quantity of water available and quality of the water

That is the vertical distance from the water level to the center of the fire pumper

Lift

It is also wise to select a drafting site that allows water tenders in a shuttle operation to be filled without having to _____

Back up or turnaround

Before you start supplying water to handlines, master streams, or a relay pumping operation, you will need to establish a

Dump line

Most portable pumps will flow water at a maximum rate of _____ so using a dump line will not be possible

250 gpm

A ______ involves moving tankers full of water from the fill site to the dump site with the empty tankers then returning to the fill site

Water shuttle operation

Many tanks are equipped with two drains so that they can be hooked together; otherwise a ____ may be used to move the water from one tank to another

Jet siphon

When only one tank is being used, the tanker operator must use care not to dump the water on or near the strainer, as introduction of the water creates ______ when it enters the tank

Air turbulence