11, 12 Essentials
Terms
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- Name 2 types of hydrants?
- Dry Barrel and Wet Barrel
- What is the size of a residential hydrant supply main?
- At least 6 inches
- What is the size of a indstrial hydrant supply main?
- At least 8 inches
- The hydrant's bonnet, barrel, footpiece are made of____?
- Cast Iron
- The hydrant's working parts are made of ____?
- Bronze
- What is the ideal minimum distance between hydrants?
- 300 feet
- Name 5 things to look for when checking hydrants?
- Obstructions, Clearence, Damage, Rust and Corosion, Operation
- Define Drafting?
- Raising water from static water supply to a pumper
- Define Fittings?
- Connect hoses of different sizes and threads
- Define Adapter?
- Fitting to connect couplings with dissimilar threads but same size
- What do double males and double females do?
- Allow hoses to be connected when both couplings are same sex
- Define Reducer.
- Fitting to extend larger hoseline by connecting a smaller one
- Define Elbow?
- Change direction of flow
- Define Hosecap?
- Close off male coupling
- Define Hose Plug?
- Close off female coupling
- Define Valves?
- Control water flow in hoselines, hydrants, pumpers, etc.
- Name 4 types of valves and their locations?
- Ball Valve, pumper discharge and gated wyes; Gate Valve, hydrant; Butterfly, large pump intake; Clapper, siamese
- Define Valve Devices and name 3 types?
- Increase or Decrease number of hoselines; Wye, Siamese, Hydrant Valve
- What is a Siamese used for?
- Combines hoselines to overcome FL in long lays or large flows
- Define Hydrant Valve or Humat?
- Allows original supply line to be connected to hydrant and charged before another pumper arrives to boost pressure without interrupting flow
- What is the difference between a hose appliance and a hose tool?
- Water flows through an appliance but not a tool
- Name 4 types of Hose Appliances?
- Valves, Valve Devices, Fittings, Intake Devices
- Name 5 types of Hose Tools?
- Rollers, Spanners, Straps, Jackets, Clamps
- Name 5 uses for Spanners?
- Tighten and Loosen couplings, Prying, Utility Valve Key, Pull Nails, Hammering
- Name 3 uses for Hose Straps?
- Secure hose to handle pressure, Secure hose to ladder, Carry and Pull hose
- Name 3 types of hose clamps?
- Screw down, Pressdown, Hydraulic Press
- What is the proper location for apply a hose clamp?
- At least 20 feet behind apparatus and within 5 feet of coupling on incoming side
- What are 2 uses for a hose jacket?
- To seal ruptures and to connect hose with mismatched or damaged couplings
- Define Fire Hose?
- Flexible tube used to carry water under pressure from supply source to point of discharge
- Define Intake Hose?
- Connects pump to water source
- Define Storz?
- Sexless coupling with one-third turn connection
- What is NFPA 1901 requirement for hose on apparatus?
- 15 feet large soft sleeve or 20 feet hard suction; 1200 feet of 2.5 inch or larger supply hose; 400 feet attack hose
- Name 5 types of couplings?
- Threaded, Storz, Quarter Turn, Rocker Lug, Snap
- What are the 2 most common types of couplings?
- Threaded and Storz
- Name 3 types of coupling construction methods?
- Drop forged, extruded, cast
- Which coupling construction method is the strongest? Weakest?
- Strongest is Drop Forged; Weakest is Cast
- Name 3 types of lugs?
- Pin, Rocker, Recessed
- Name 2 types of coupling gaskets?
- Swivel Gasket and Expansion Ring
- Define Swivel Gasket?
- Provide water tight connection between male and female
- Define Expansion Gasket?
- Located at end of hose expanded into shank
- What is the physical difference between a swivel gasket and an expansion ring?
- Thickness
- What is a finish?
- Arrangement place on top of hoseload and connected to end
- What is proper procedure for connecting attack line to stand pipe?
- Stop 1 floor below fire floor, take notice of floor layout, detach building hoseline, check for proper adapter, check for debris
- What are site requirements for hose testing?
- Room for straight runs, away from traffic, smooth and clean area, slight grade
- What are equipment requirements for hose testing?
- Helmut, pumper, test gate valve, marker, chechsheets, tags, nozzles with shutoffs
- What is the maximum length allowed per hoseline when testing?
- 300 Feet
- Name 4 types of hose rolls and their uses?
- Straight Roll for loading, washing, and storing; Donut Roll for quick deployment; Twin Donut Roll for compact carry; Self Lock Twin Donut Roll for hospital roll
- Name 3 types of hoseloads?
- Accordian, Horseshoe, Flat
- What is the purpose of a split hosebed?
- Allow for both forward and reverse lays
- Name 3 types of preconncected hoseloads?
- Flat, Triple Layer, Minuteman
- Name 3 types of supply hose lays?
- Forward, from water source to fire; Reverse, from fire to water source; Split Lay
- Name 2 types of Hose Tests?
- Acceptance and Service
- Define Higbee Cut?
- Cut in beginning of thread designed to eliminate cross threading
- Where is the Higbee Indicator located?
- On Swivel Lug