Chp 16 Flashcards

Question

Extension cylinders

Answer 1

On new aerials | Dual cylinder on base section used to extend second section or pulleys

Answer 2

2 types, aerial ladder, tillered trucks Most common apparatus Range 50 to 137 ft

Answer 3

Ground to highest ladder rung at maximum elevation and extension

Answer 4

``` Rescue ventilation Elevated master stream Access to upper levels Exposure protection Also access to lower floors or rescue areas ```

Answer 5

Power operated ladder usually employing hydraulics with a passenger carrying device attached to the end of the ladder

Answer 6

Elevating platform equipped with piping systems and nozzles for elevated master stream Not meant to be climbed; only have a small ladder used for escape

Answer 7

Device with two or more booms with hinges that fold with passenger platform at the working end

Answer 8

Leveling system 14 sq ft floor area Enclosed rail system with no opening >24" 2 gates with inward swinging doors (or up) 4" kick plate (separate drain) Two sets of controls (base can override tip) Backup hydraulic system Heat shield (age, dirt damage affect effectiveness) Fog curtain nozzle at bottom at 75 gpm or more Load capacity 750 lbs dry at any angle 500 lbs flowing 1000 gpm at 100 psi in any position If <110', bed to fully extended, rotate 90* in 150 seconds

Answer 9

``` 1 or 2 master streams Roof ladder at fly, platform, or base station Electrical, air and hydraulic outlets Communication system Floodlights Forcible entry Handline outlets Safety attachment point ```

Answer 10

Climbable ladder with working platform Height from ground to top of highest handrail Common 85-110' Straight chassis, 3 axle, rear mount is most common

Answer 11

Same per NFPA but these have smaller escape ladder only Common 75-100' 2 or more sections of box beam or tubular truss beam Tubular steel is welded to form a box shape using cantilever or triangular truss design

Answer 12

Mechanically applied rivet used on aerials. | Can only be removed by drilling.

Answer 13

Built the same as telescoping but with hinges instead Standard is 55-85' Also combination with telescoping and aerials (90-174')

Answer 14

Articulating or telescoping aerial primarily for deploying an elevated master stream, not climbing Go from 0-90* 50-130' Flow 1000-5000 gpm

Answer 15

Pump, tank, supply and attack hose, ground ladders, aerial Can be customized Can supply its own elevated MS Can protect itself from radiant heat

Answer 16

Corrosion resistant aircraft quality cables of plow steel,abrasion resistant Or can use a dual chain drive Main cable drum can be hydraulic, electric, or mechanical

Answer 17

Rotational structural component Generally large shear ball bearings secured by bearing bolts Gear teeth engage rotating grears

Answer 18

On the turntable Some small water towers or quints may be on the back For platforms must have two sets 3 levers for elevate, rotate, extend from right to left Some have joysticks Also has high idle, light switch, override switches and a bunch of others Designed for all heights with a sloped panel

Answer 19

Combination of mechanical limit switches or algorithms that prevent a component from functioning when another one is.

Answer 20

Aerial/stabilizer Body collision: won't hit cab Rotational interlock (short jack): won't go off short jack side Maximum elevation slow down Retraction Nozzle stow: won't cradle Aerial function interlocks: aerial won't go without brake etc Cab interlock: cab won't raise with engine running Tiller: deadman

Answer 21

Pre-piped: bed ladder system or telescoping Bed ladder: non telescoping, 3-3.5" on underside of bed section via Siamese, old, manually operated, solid stream Telescoping: on ladders 110' go to tip, 4" min diameter, flow up to 1000 gpm Pinnable telescoping Detachable ladder pipe Elevationg platform

Answer 22

ladder pipe 3-3.5" fire hose placed in middle to avoid torsion, other end rests on the ground Straps secure 2-3 times Siamese fed by 2-3 2.5-3" hoses or LDH with 3-way wye; clamped on top 2 rungs of fly Solid or fog, controlled at tip or by ropes 750 max gpm 15* rotation limit to avoid nozzle reaction torsion

Answer 23

Same as pre-piped aerial ladder system But nozzle is located in the platform, rather than the end of the ladder Greater load capacity 200 gpm flow Some have 2 nozzles and on 2.5" discharge

Answer 24

Designed for master stream deployment Usually pumped from the apparatus Controlled from the ground May have camera or TIC or piercing nozzle (flows 300 gpm)

Answer 25

Hands free at tip, one at platform (maybe one at pump panel)

Answer 26

Some have, not required by NFPA 1901 Do regulate # of ff, capacity, pressure, low air warning, and govt regulations Test annually, moisture filters have specific pressure

Answer 27

Portable: 110-220; gas or diesel; works in compartment or remotely Mounted: larger capacity; portable equipment and floodlights; fuel or PTO driven; noisy; have breaker panel;

Answer 28

``` When generator is not required Used for vehicle mounted floodlights Steps 12v of vehicle to 110-220 volt AC Efficient, low noise Small capacity, limited mobility ```

Answer 29

Ground fault circuit interrupter: protects against shock | When grounding occurs, opens a circuit to stop flow of electricity

Answer 30

Portable: corded or self powered; handles and telescopes Fixed: for overall scene lighting; raise lower or turn; or booms with bank of lights;

Answer 31

Power cords: 200 ft; examine daily for insulated, ground wire, waterproof, exposed wires Junction boxes: for multiple connections; have locator light Adapters: for mutual aid responses

Answer 32

Spreaders, shears, combination, rams | Hoses should be 100' or less

Answer 33

Ground ladders: attic roof and extension required (40' is a pole ladder with bangors) Forcible entry: plaster hook, crow bar, wrenches Ventilation: exhaust/smoke ejector or PPV fans Salvage/overhaul: covers, scoop shovel required, also infrared detector, TIC, blocks, saws

Answer 34

Many steering linkages Make sure pin is removed Inspect air bag suspension Coupling is lubed

Answer 35

Check cable systems Hydraulic systems, cold when all are stowed Slides and rollers, extend is preferred to bedded Stabilizing systems Breathing air systems Communication systems Need to test as well as visually inspect

Answer 36

Tests and refreshes operator Pre-power transfer refer to owner's manual If leaning with stabilizers, you may have a leak Some automatically tfer to aerial mode if stabilizers deployed Testing EPU disengage main hydraulic system and open control valve to prevent dead hanging

Answer 37

Operating a hydraulic pump without fluid flowing through the system

Answer 38

Preservice Service: inspect and test stabilizers, torque box, aerial device and water system NFPA 1911 Nondestructive testing done 5 years, after accident, unusual stress or major repairs, some do annually

Answer 39

Once aerial or stabilizers are shut down: actuator valves, monitor valves, stack valves, proportional directional control valves all sued to direct and control power. Many 4 or 5 way valves to operate actuators both directions Actuators are cylinders or hydraulic motors