Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/126

Click to flip

126 Cards in this Set

  • Front
  • Back

Any valve that can be used to shut down water flow

Shut off value

Any underground water pipe

Water main

The quantity of water flowing through an opening during a hydrant test

Flow pressure

A small diameter underground water pipe, carries water to the user

Distributor

Enables tankers to offload as much as 3000 gallons of water per minute

Dump valve

The pressure remaining in the system while water is flowing

Residual pressure

A gauge used to determine the flow of water from a hydrant

Pitot gauge

A water storage facility

Reservoir

The pressure in a water pipe when there is no water flowing

Static pressure

What is the recommended minimum water pressure from a fire hydrant?

20 psi (138 kPA)

How are fire department hoses connected to a hydrant?

Outlets

How is the flow or quantity of water moving through a pipe, hose, or nozzle measured?

Measure by volume

Which type of hydrant includes a pipe with a strainer on one end and a connection for a hard suction hose on the other end that can be used to access static water sources?

Dry hydrant

Which type of system may not require pumps because the water source, the large treatment plant, and storage facilities are located on ground higher than the end users?

Gravity feed system

How should hydrants be positioned to the street?

Connections, especially large steamer connection, faces the street

What is the best indication of how much more water is available in the system while water is flowing?

Residual pressure

What is created if a large volume of water is needed for an extended, tankers can be used to deliver water from a fill site to the scene?

Tanker shuttle

What are considered parts within the water source, treatment plant and distribution system?

Municipal water system

The pipes that deliver large quantities of water to a section of a town or city

Primary feeders

What must a well designed system follow to ensure that water flows to a fire hydrant from two or more directions?

Grid pattern

The quantity of water flowing through an opening during a hydrant test

Flow pressure

A large opening on a fire hydrant that is used to allow as much water as possible to flow directly into the pump

Steamer port

The distribution system of underground pipes

Water mains

What are the first factors to check when inspecting hydrants?

Visibility and accessibility

The smallest pipes in a water distribution system that carry the water to the users and hydrants

Distributors

What does the size of water mains depends on?

The amount of water needed for both normal consumption and fire protection

Which unit is used to measure water pressure?

Pounds per square inch

How many valves control the flow of water on most dry barrel hydrants?

One large valve (steamer)

Water that is not moving

Static pressure

How is the flow or quantity of water moving through a pipe, hose or nozzle measured by?

Volume

Water distribution system that is designed to deliver potable water to end users for domestic, commercial, industrial and fire protection purposes

Municipal water system

Method of transporting water from a source to a fire scene using a number of mobile water supply apparatus

Tanker shuttle

Used in areas subject to freezing weather. The valve(s) allows water to flow into hydrant located underground, barrel of hydrant is considered dry

Dry barrel hydrant

Observed static pressure in a water distribution system during a period of normal demand

Normal operating pressure

Depends on gravity to provide required pressure usually located at higher elevation than end users

Gravity feed system

How is elevation pressure created by?

Gravity

What system does rural areas depend on for water?

Static water supplies such as lakes and streams

What can water be transported through?

Long hose lines, pumper relays or mobile water supply tankers

What type of energy does water have that is not moving?

Potential energy

What can municipal water systems draw their water from?

Reservoirs

Dry barrel hydrants need to be either ____________ opened or ____________ closed.

Dry barrel hydrants need to be either FULLY opened or FULLY closed.

What type of valve allows different water main sections to be turned off or isolated?

Control valves

Used to measure flow pressure through an opening during a hydrant test

Pitot gauge

Amount of pressure that remains in the system when water is flowing

Residual pressure

When does the drain close in a dry barrel hydrant?

When hydrant valve is opened

A hose used for drafting water from static supplies (lakes, rivers, wells). It can also be used for supplying pumps on fire apparatus from hydrants

Hard suction hose

A type of tool used to couple or uncouple hoses by turning the rocker lugs on the connections

Spanner wrench

A fungus that can grow on hose if the hose is stored wet. The fungus can damage the jacket of a hose

Mildew

A fitting used to connect a small hose line or pipe to a larger hose line or pipe

Reducer

A device used to compress a fire hose so as to stop water flow

Hose clamp

A valved device that splits a single hose into two separate hoses, allowing each hose to be turned on and off independently

Gated wye

Folding or collapsible tanks that are used at the fire scene to hold water for drafting

Portable tanks

A method of laying a supply line where the supply line starts at the attack engine and ends at the water source

Reverse lay

The pressure that exists at a given point under normal distribution system conditions measured at the residual hydrant with no hydrants flowing

Static pressure

A generic term for any underground water pipe

Water main

The large diameter port on a hydrant

Steamer port

A source of water for fire fighting activities

Water supply

A method of laying a supply line where the line starts at the water source and ends at the attack enginer

Forward lay

A device used to split a single hose into separate lines

Wye

What type of pipes carry large quantities of water to a section of a city?

Large mains or primary feeders

What type of pipes distribute water to a smaller area?

Smaller mains or secondary feeders

What type of pipes carry water to the users and hydrants along individual streets?

Smallest pipes or distributors

What type of hydrants are used in areas where temperatures do not drop below freezing? These hydrants do not have to be drained after each use.

Wet barrel type hydrants

What type of hydrants are used in areas where temperatures drop below freezing? When this type of hydrant is not in use, the barrel must be dry.

Dry barrel type hydrants

Refers to an energy level and and is measured in units of psi

Water pressure

How is static pressure created?

By elevated pressure and/or pump pressure

What pressure measures the quantity of water flowing through an opening?

Flow pressure

Type of hose that ranges from size from 1 inch to 2 inches in diameter and are commonly used for attack lines

Small diameter hose (SDH)

Type of hose that has a diameter of 2 1/2 inches or 3 inches and is used for both attack and supply lines

Medium diameter hose (MDH)

Type of hose that has a diameter of 3 1/2 inches or more and is used for supply lines

Large diameter hose (LDH)

Short section of LDH that is used to connect a fire department engine directly to the large steamer outlet on a hydrant. It has a female connection on each end.

Soft suction supply hose

Special type of hose that is used to draft water from a static source such as a river, lake, or portable drafting basin. It is designed to remain rigid and will not collapse when a vacuum is created in the hose

Hard suction supply hose

How often should visual hose inspections be performed?

At least quarterly

The laying of hose that is performed by two engine companies in situations where hose must be laid in two different directions to establish a water supply

Split hose lay

The laying of hose in which the hose is laid in the same direction as the water flows - from the hydrant to the fire

Forward lay

The laying of hose in which the hose is laid in the opposite direction to the water flow

Reverse lay

Whenever possible, a hose line should be laid out and positioned as ____________ as possible to the location where it will be operated ____________ it is charged with water

Whenever possible, a hose line should be laid out and positioned as CLOSE as possible to the location where it will be operated BEFORE it is charged with water

What hose diameter size is designed to move large volume of water to supply master stream appliances, portable hydrants, manifolds, standpipe and sprinkler systems and fire department pumpers from hydrants?

LDH = 3.5 in diameter or large

What hose load is achieved by standing the hose on its edge, then placing the next fold on its edge and so on

Accordion hose load

What is the pressure that exists at a given point under normal distribution system conditions measured at the residual hydrant with no hydrants flowing?

Static pressure

What are the largest diameter pipes in a water distribution system, carrying the greatest amount of water?

Primary feeders

What is the device that has a 2 1/2 inch inlet and a 2 1/2 inch outlet in addition to two 1 1/2 inch outlets? It is used to supply many hoses from one source

Water thieft

What is a hose adapter that is used to join two female hose couplings?

Double male adaptor

Indicators on the male and female threaded couplings that indicate where the threads start. These indicators should be aligned before fire fighters start to thread the couplings together

Higbee indicators

Device that allows two hoses to be connected together and flow into a single hose

Siamese connection

A method of putting a hose on a vehicle in which the hose is laid flat and stacked on top of the previous section

Flat hose load

A short fold placed in a hose when loading it into the bed; the fold prevents the coupling from turning in the hose bed

Dutchman

Reduction in pressure resulting from the water being in contact with the side of the hose. This contact requires force to overcome the drag that the wall of the hose creates

Friction loss

A valved device that splits a single hose into two separate hoses, allowing each hose to be turned on and off independently

Gated wye

A device used to stop a leak in a fire hose or to join hoses that have damaged couplings

Hose jacket

A hose coupling that has the property of being both the male and female coupling. It is connected by engaging the lugs and turning the coupling a one third turn

Storz type (non threaded) hose coupling

The surge of pressure that occurs when a high velocity flow of water is abruptly shut off

Water hammer

In recent years, what is the operation pressure of low pressure (fog stream nozzles)?

50 or 75 psi (formally 100 psi)

What are two stages of advancing an attack line?

1. Laying out hose to building entrance


2. Advance line into building to location where it will be operated

How should the extra attack line be laid out to the entry point?

Should be flaked out in a serpentine pattern

When referring to the hose bed, what is the end closest to the cab called?

Closest to cab is called the FRONT of the hose bed

When referring to the hose bed, what is the end closest to the tailboard called?

Closest to tailboard is called the REAR of the hose bed

What hose appliance is similar to a gated wye but includes an additional 2 1/2 inch outlet?

Water thief

What is an important part of a threaded coupling and can result in unnecessary water damage which could cause ice to form and create a safety hazard during cold weather?

Swivel (O-ring rubber) gasket located within female coupling

Rectangular shaped extensions on hose couplings that aid in coupling the hoses

Rocker lugs (rocker pins)

Which hose roll is a simple and frequently used hose roll that is used for general handing and transporting of hose as well as for rack and storage?

Straight or storage hose roll

Which side of coupling is folded first over on top of the hose while performing a straight hose roll?

Male coupling

What hose construction consists of two layers of woven fibers? Outer layer serves as a protective covering, while the inner layer provides most of the strength?

Double jacket hose

What hose construction are constructed with a durable rubber like compound as the outer covering which is bonded to a single layer of strong woven fibers?

Rubber covered hose or rubber jacket hose

What hose construction is considered the inner part of the hose?

Hose liner or hose inner jacket

What are used to connect individual lengths of fire house together?

Hose couplings

What type of couplings are used on most hoses up to 3 inches in diameter and on both soft suction hose and hard suction hose?

Threaded couplings

Which type of coupling is manufactured in a single piece?

Male couplings

Which type of coupling is manufactured in two pieces?

Female coupling

What are the two most common type of fire hose couplings?

Threaded hose couplings


Storz type (non threaded) hose couplings

Which couplings are designed so that the couplings on both ends of a length of hose are the same?

Storz type couplings

How are Storz type couplings connected?

Mate two couplings face to face and then turn them clockwise one third of a turn

When should charged hose lines NEVER be disconnected?

While water inside the hose is under pressure

What type of hose is designed to be used for fire suppression?

Attack hose

What type of hose is used to deliver water to an attack engine from a pressurized source, such as a fire hydrant or from a supply engine?

Supply hose

What type of hose is a short section of LDH that is used to connect a fire department engine directly to the large steamer outlet on a hydrant?

Soft suction hose

What type of hose is used to allow as much water as possible to flow from the hydrant to the pump through a single line?

Soft suction hose

What type of hose is a special type of supply hose that is used to draft water from a static source such as a river, lake or portable drafting basin?

Hard suction hose

What is the Standard for the Inspection, Care and Use of Fire Hose, Couplings and Nozzles and the Service Testing of Fire Hose?

NFPA 1962

What does the nominal hose size referred to?

Inside diameter of the hose when it is filled with water

Many fire department vehicles are equipped with a reel of 1 inch hard rubber hose which is used for fighting small outdoor fires

Booster hose or booster line

What type of hose must withstand higher pressures and is designed to be used in a fire environment where it can be subjected to high temperatures, sharp faces, abrasion, and other potentially damaging conditions?

Attack hose


SDH 1 inch to 2 inch


MDH 2 1/2 inch or 3 inch

When should attack hoses be tested and at what pressure?

Tested at a pressure of at least 300 psi


Intended to be used at pressures up to 275 psi

When should supply hoses be tested and at what pressure?

Tested at a pressure of at least 200 psi


Intended to be used at pressures up to 185 psi

What hose has a female connection on each end, with one end matching the local hydrant threads and the other end matching the threads on a large diameter inlet to the engine?

Soft suction hose

What hose have long handles on the female couplings to assist in tightening the hose?

Hard suction hose