Chapter 15 Key notes

Question 1

What are the two main purposes fire hose are used for?

Answer 1

Supply hose( or supply lines and attack hose ( or attack lines)

Question 2

What range of size do fire hose come in?

Answer 2

Fire hose range from 19mm to 152mm (3/4 in. to 6 in.) in Diameter

Question 3

What is booster hose?

Answer 3

A booster hose (booster line) is 25mm (1-in.) diameter hose usually carried on a hose reel that holds 45 m or 61 m (150 ft o 200 ft) of hard rubber hose. It’s used for smaller fires like trash fires.

Question 4

What is a forestry fire hose?

Answer 4

It is a lightweight collapsible hose used to fight wildland and ground cover fires.

Question 5

What is Large Diameter hose?

Answer 5

Large diameter hose has a diameter of 88mm (3 1/2 in.) or more. It can be used as both supply and attack hose

Question 6

What is single jacket hose?

Answer 6

A single jacket hose is constructed with one layer of woven fibre.

Question 7

What is a multiple jacket hose?

Answer 7

A multiple jacket hose is constructed with two or more layers of woven fibres.

Question 8

What is the hose liner?

Answer 8

The hose liner is the inner part or layer of the hose, This liner prevents water from leaking out of the hose and provides a smooth inside surface for water to move against

Question 9

What is a spanner wrench (hose key)?

Answer 9

A spanner wrench or hose key is a rotating tool used couple (connect) and uncouple (disconnect) hose couplings, to gently tighten the couplings until the leaked has stopped

Question 10

What are rocker lugs?

Answer 10

Rocker lugs or (rocker pins) have rectangular-shaped extensions. The edges or the rocker lugs are beveled to prevent them from catching on objects as hose is dragged across the surface

Question 11

What is a Higbee indicator?

Answer 11

A higbee indicator is a notch or cut on the outside of one of the lugs that indicates the position or the first thread on a coupling. Aligning the higbee indicators on two couplings helps determine exactly where the first thread is on a pair or couplings and will help you to couple hose more quickly

Question 12

What are storz-type (nonthreaded) hose couplings?

Answer 12

storz-type (nonthreaded) hose couplings are designed so that the couplings on both ends of a length or hose are the same. In other words there is no male or female end to the hose

Question 13

What is Suction hose?

Answer 13

Suction hose is used to supply water to the suction ( or intake) side of the fire pump.

Question 14

What is a soft sleeve hose?

Answer 14

A soft sleeve hose is a short section of large-diameter supply hose that is used to provide water from the large streamer outlet (the large-diameter port) on a fire hydrant or other pressurized water source to the suction side of the fire pump

Question 15

What is a hard suction hose?

Answer 15

A hard section hose is a short section or rigid hose that is primarily used to draft water from a static source such as a river, lake or portable drafting basin to the suction side of the fire pump on a fire department pumper or into a portable pump

Question 16

What is mechanical damage?

Answer 16

Mechanical damage can occur from many sources, hose that is dragged over rough objects or along a roadway can be damaged by abrasion for example.

Question 17

What is heat and cold damage?

Answer 17

A hose that is directly exposed to fire can burn through and burst quickly Freezing can rupture the hose liner and break fibres in the jacket

Question 18

What is mildew damage?

Answer 18

Mildew is a type of fungus that can grow on fabrics and materials in warm, moist conditions

Question 19

What is a straight or storage hose roll?

Answer 19

the straight or storage hose roll is a simple and frequently used hose roll. Is is used for general handling and transportation or hose as well as for rack storage or hose

Question 20

What is single-doughnut hose roll?

Answer 20

The single-doughnut roll is used when the hose will be put into use directly from the rolled state.

Question 21

What is twin-doughnut hose roll?

Answer 21

The twin doughnut hose roll is used primarily to make a small compact roll that can be carried easily

Question 22

What is a self locking twin doughnut hose roll?

Answer 22

The self locking twin doughnut hose roll is similar to the twin-doughnut roll except that it forms its own carry loop

Question 23

What are hose appliances?

Answer 23

Hose appliances are any device used in conjunction with a fire hose for the purpose or delivering water, including wyes, water thieves, Siamese connections, adaptors, reducers, hose jackets, hose rollers, hose bridges, hose clamps, and some valves.

Question 24

What is a wye?

Answer 24

A wye is a device that splits one hose into two or more separate lines

Question 25

What is a gated wye?

Answer 25

A gated wye is equipped with two quarter turn ball valves so that the flow or water to each or the split lines or outlets can be controlled independently

Question 26

What is a water thief?

Answer 26

A water thief is similar to a gated wye but includes a 65 mm (2 1/2 in.) inlet, a 65 mm ( 2 1/2 in.) outlet, and two 38 mm (1 1/2 in.) outlets.

Question 27

What is a Siamese connection?

Answer 27

A Siamese connection is a hose appliance that combines two or more hose lines into one. The most commonly used type or Siamese connection combines two 65 mm (2 1/2 in.) hose lines into a single 65 mm (2 1/2 in.) line

Question 28

What are adaptors?

Answer 28

Adaptors are devices that allow fire hose couplings to be safely interconnected with couplings or different sizes, threads, or mating surfacing or that allow fire hose couplings to be safely connected to other appliances

Question 29

What are reducers?

Answer 29

A reducer is a type or adaptor used to attach a smaller diameter hose to a larger diameter hose. Usually the larger end has a female connection and the smaller end has a male connection

Question 30

What is a hose jacket?

Answer 30

A hose jacket is a device that is places over a leaking section of hose to stop a leak

Question 31

What is a hose roller?

Answer 31

A hose roller is a device used to prevent chafing or kinking over a sharp edge as hose is being hoisted over the edge or a rood or over a windowsill

Question 32

What is a hose bridge?

Answer 32

A hose bridge protects a hose when is it necessary to drive a vehicle over a hose lines. With rubber hose bridges, the bridge is placed under the hose, and the hose is placed into a trough in the center of the hose bridge

Question 33

What is a hose clamp?

Answer 33

A hose clamp is used to temporarily stop the flow of water in a hose liens. These devices are often applied to supply hose, allowing a hydrant to be opened before the line is attached to the suction side of the attack pump

Question 34

What are commonly encountered valves?

Answer 34

Ball valves, Clapper mechanisms, gate valves, butterfly valves, four way hydrant valves, remote controlled hydrant valves

Question 35

What is a master stream appliance?

Answer 35

A master stream appliance or device are used to produce high volume water streams for large fires, they discharge between 1325l/min (350 gpm) and 5678 L/min (1500 gpm), though much larger capacities are available

Question 36

What is a deck gun?

Answer 36

A deck gun is permanently mounted on and operated from a vehicle, and it is equipped with a piping system that delivers water to the gun

Question 37

What is a portable monitor?

Answer 37

a portable monitor is a master stream appliance that can be carried on apparatus and removed from the apparatus when needed

Question 38

What are elevated master stream appliances?

Answer 38

Elevated master stream appliances are mounted on ariel apparatus such as aerial ladders, tower ladders, elevated platforms, or special hydraulically operated master stream booms

Question 39

What is a low-volume nozzle?

Answer 39

A low-volume nozzle flows 151 L/min (40 gpm) or less, some nozzles use a little as 57 L/min (15 gpm)

Question 40

what are handline nozzles?

Answer 40

Handline nozzles are used on hose ranging from 38 mm (1 1/2 in.) to 65 mm (2 1/2 in.) in diameter. Handline nozzle streams usually flow between 189 L/min and 1325 L/min (50 and 350 gpm)

Question 41

What are master stream nozzles?

Answer 41

Master stream nozzles are used on deck guns, portable monitors, and ladder pipes that flow more than 1325 L/min (350 gpm)

Question 42

What is the nozzle shut off valve?

Answer 42

The nozzle shut off valve or bale enables the fire fighter at the nozzle to control (start or stop) the flow of water

Question 43

What is a break away fire nozzle?

Answer 43

A break away fire nozzle allows fire fighters to shut off the flow, unscrew the nozzle tip, and then add more lengths of hose to extend the hose without shutting off the valve at the pumper