Exam 2 Flashcards

Question

Search and rescue

Answer 1

Primary search – a rapid initial search of all safely accessible places in and around the fire, to ascertain the safety of occupants. This search is undertaken during the early stages of an incident. Secondary search – conducted more thoroughly after fire suppression is completed.

Answer 2

1 - Safely protect people. 2 - Safely protect property. 3 - Safely help restore normality.

Answer 3

Convection Conduction Radiation

Answer 4

1. Inhalation 2. Absorption 3. Ingestion 4. Injection

Answer 5

The primary search is a rapid but thorough search of all areas which can be entered safely. The purpose of this search is to find and remove all occupants to safety.

Answer 6

A secondary search occurs once the situation is under control and the fire has been contained. It is a way to confirm the presence of casualties and to account for all occupants. The emphasis in a secondary search is on thoroughness.

Answer 7

Visual inspection of building Buildings approximate age The likelihood that the building contains asbestos Likelihood of the asbestos being disturbed

Answer 8

Safe person approach Dynamic Risk Assessment Zoning of Incident Decontamination process conducted onsite and offsite Asbestos contaminated waste management Personnel notification of positive test results

Answer 9

Diffused (yellow)- In a diffused flame, combustion with volatiles takes place at the flame surface only Premixed (blue) - In a premixed flame, gas or vapour is able to mix with oxygen and provide a mixture within the flammability limits

Answer 10

Flash hoods are single use, to be replace with a new one on every entry into the hot zone If contaminated, PPC to be placed into a yellow laundry bag, goose necked, taped and sent to laundry. Red bag if exposed to Asbestos. Dekonmate wipes to be used in the first instance to clean your body, shower ASAP

Answer 11

Fire gas ignition is an event that usually occurs in a separate compartment It can happen by conduction of heat from the fire compartment to other compartments Leakage of fire gases from the compartment that is on fire Construction of the premises will influence the possibility of a fire gas ignition

Answer 12

Systematic from the doorway. Identify obstructions requiriung further searching Floors, 4 side walls, ceiling

Answer 13

Life, surroundings, fire?????

Answer 14

**TI Basic NFPA mode ** − Yellow starts at 150 °C − Orange starts at 300 °C − Red starts at 450 °C − Dark red (saturated value) > 650 °C **Black and White Firefighting mode.** - This mode is designed for fire services that do not want to use the heat colourisation feature **TI Basic Plus NFPA mode** - Crosshair temperature gauge **Search and Rescue mode** - Yellow starts at 100 °C − Orange starts at 125 °C − Dark red (saturated value) > 150 °C **Heat detection mode** - search for people in water and open landscapes. - Hottest object only is red

Answer 15

Reflections, glass, steel, water Depthe perception Stairs Moving too fast Through walls and bulidings

Answer 16

Passive : Absorbs heast from another source. Hand or heater on an object Active: Generat own heat. Humans and animals Direct: Generate heat in large amounts. Fire/heater

Answer 17

Is the movement of the thermal layer. Using the TIC, the layer is visible in shades of grey. Viewing of the thermal current assists in identifying the: ◼ Direction of the fire – (current moving away from the source). ◼ Intensity of the fire – (current speed). ◼ Volatility of the fire – (current surges/‘storm clouds’ leading to flashover)

Answer 18

Convection – occurs via gases. An energy source will heat the gases, aiding in the transfer of the energy on air currents. Ducted heater Conduction – occurs in solids or liquids. When a heat source is in direct contact with a material it transfers energy directly through the material. Fire on metal Radiation – energy is emitted in the form of electromagnetic waves which travel through the air and transfers the energy to objects they strike

Answer 19

Size up Search and rescue Hazard assessment Building assessment Navigation Fire attack Overhaul Wildfire/bushfire Incident control/command Hazardous materials Post-incident investigation

Answer 20

Is the loss of pressure created by turbulence of water moving against the interior of a hose or pipe

Answer 21

38mm 220kpa 50mm 75kpa 65mm 25kpa 90mm 5kpa

Answer 22

A static/open source such as a dam, creek or swimming pool. A pressurised source such as a hydrant, the pump of another firefighting appliance or an elevated tank.

Answer 23

Volute - part of the pump casing itself and is shaped like the shell of a snail Impeller - circular disc (the back shroud) with curved vane

Answer 24

Steady flow Operates at variable pressures Simple construction and operation Easily maintained and less likely to be damaged Pumps dirty or gritty water with minimal damage to pump Small and compact Flow can be interrupted without stopping engine Can be connected to an internal combustion engine by direct drive

Answer 25

A centrifugal pump cannot displace air and needs to be primed if no water is present in the pump casing An additional pump is required to do this, one that is able to displace the air and introduce water into the main pump casing Requires different design features, rotation speeds and engine power combinations compatible with pumping water efficiently

Answer 26

SIngle stage Multi stage - Series - Parralel

Answer 27

The compound gauge shows atmospheric pressure. Measures pressure on the inlet side of the pump. Can be positive when pressurised water is entering the pump Can be negative (red) when air is being displaced by the primer (such as when using tank supply or drafting from a static supply) or water supply is being overrun

Answer 28

Main pump Orange MK5 Blue HEAVY Shows the water pressure in the main pump or low pressure pump casing in kPa. Gauge is labelled ‘low pressure’ as it is the outlet of the first impeller, which is a lower pressure than the outlet of the second impeller which is connected in series Maximum operating pressure of the main pump is 1400kpa

Answer 29

Always red and linked to the hose reels Maximum is 4000kpa Mk5 2000kpa Heavy 3000kpa

Answer 30

Godiva WTB 4010 rear mounted Multi-Stage Pump Water Tank Capacity 2000 litres. Foam Capacity ‘B’ Class 200 litre Low Pressure 4000 L/min at 1000 kPa High Pressure 750 L/min at 5500 kPa – periphal pump Maximum Flow Capacity 6200 L/min No pump and roll

Answer 31

Stop the vehicle Apply the park brake Select N (neutral) on the transmission. The instrument cluster will display N-N. EXT switch Engage PTO (centre console) by rotating the switch clockwise. Select Drive (D) on the Transmission The green OKAY TO PUMP light illuminates and the instrument cluster will display 4-4.

Answer 32

Height: 3.10 metres. Width: 3.00 metres over mirrors Length: 8.10 metres. Vehicle Mass 16.00 tonnes). Main Pump: Darley KSPAH 1000 mid-mounted single stage centrifugal pump with a 2nd stage high pressure. Pump capacity: 3800 L/min at 1000 kPa. Primer: Two (2) positive displacement vane type pumps. Foam System Capacity 3% Foam 3800 L/min 6% Foam 2650 L/min Water Tank Capacity: 1300 litres. Foam Tanks Capacities: ‘A’ Class 25 litres. ‘B’ Class 300 litres. Monitor Water 3800 L/min

Answer 33

1. Apply the park brake and place the transmission in neutral. 2. Switch on the pump master electrical switch – Pause. 3. Switch on the 2nd stage pump switch – Pause. 4. Switch on the main pump switch – Pause. 5. Place the transmission in drive. 6. Listen to hear the pumps engage. 7. Exit the appliance and check that both the main pump and 2nd stage pump lights are illuminated on the primary pump panel. To disengage the main pump and second stage: 1. Place the transmission in neutral. 2. Switch off the main pump – pause and wait for the light to go out. 3. Disengage the 2nd stage pump – pause and wait for the light to go out. 4. Switch off the pump master electrical switch

Answer 34

1. Apply the park brake and place transmission in neutral. 2. Switch on the pump master electrical switch (pause). 3. Switch on the 2nd stage pump switch (pause). 4. Switch on the main pump switch. 5. Listen to hear that the pumps have engaged. 6. Exit the appliance and check that both the main pump and 2nd stage pump lights are illuminated on the primary pump panel. To disengage the main pump and second (2nd) stage: 1. Switch off the main pump – Pause and wait for light to go out. 2. Disengage the 2nd stage pump – Pause and wait for light to go out. 3. Switch off the pump master electrical switch. 4. Listen to hear whether pumps have disengaged

Answer 35

Suction Relief Valve Discharge Pressure Relief Valve Should be set when operating a pump in any mode, but is particularly important when operating in manual mode Emergency Stop Button Pump Overheat Low Water Level Warning Impeller Cooling This is the provision of constant bleed lines from the main pump discharge and 2nd stage discharge, to bleed a small quantity of water to the water tank.

Answer 36

Pressure Relief Valve Diverts water with excess pressure into the low pressure side of the pump Thermal Relief Valve Temperature of the water inside the pump increases to 45-50 degrees Recirculation Valve There is a small cooling line between the low and high pressure stages of the pump There is a manually operated recirculation line between the pump outlet and water tank. Cavitation Protection The governor will automatically drop the engine RPM to idle when there is insufficient water Automatic Primers The twin piston primers activate automatically when delivery pressure falls below 150kpa

Answer 37

Wind direction Proximity to the incident Proximity to the water supply Good operating procedures Panel direction Pump operator’s view Oncoming appliances Park clear of power lines or trees that may be affected by the fire

Answer 38

1 – Get water into pump. From tank. 2 – Water out to fire, hose, reel, roof monitor 3 – Revs/KpA

Answer 39

Water capacity of 2000L/Min at 700 kPa Elevation angle of 10 degrees to 50 degrees above horizontal Horizontal 20 degrees either side of centre angle

Answer 40

Operating pressure of 700 kPa Selectable flow from 360, 476, 750 or 950 L/min

Answer 41

Blitzfire - MK5, Heavy Protek - Heavy

Answer 42

Monitor must be crewed at all times Monitor should not exceed 1200 kPa Should be tied off when possible Before operating ensure that the monitors legs are fully extended

Answer 43

Connect deliveries to the booster connection and open the booster valve to allow water to enter the installation Check delivery and max install pressure, which will be labelled at the booster connection point Open pump deliveries to introduce water into the installation Use the low pressure gauge to set the delivery pressure as per label Do not exceed the max install pressure on the gauge

Answer 44

Pull primer lever all the way out to close the 24v elec circuit Hold open until water discharges from the primer pump exhaust port Operate primer in intervals

Answer 45

Water tank full of clean water Ensure tank to pump valve is open with pump master on Ensure there is no pressure in the pump casing Operate the primer until fresh clean water is expelled from the primer exhaust hose

Answer 46

H - High Temperature O - Oxygen deficiency T - Toxic Atmospheres S - Smoke

Answer 47

Notify OIC Remove BA from service Complete BA Fault tag and attach to BA Complete damaged/ fault report and send to BA department Arrange for replacement BA set through relevant district/ ops commander

Answer 48

Occupants most severely threatened Largest group of occupants The remaining occupants within building involved Occupants in exposed areas

Answer 49

Fully encapsulated gas tight suit and BA OPP - 023

Answer 50

Chemical protection suits (Splash Suit) and BA Provides protection from liquids and solids to a point Is splash resistant but is not gas tight

Answer 51

Splash suit and respirator or filter mask

Answer 52

Normal work uniform and Structural firefighting clothing, coveralls, boots

Answer 53

Prepare airline trolley Prepare BA Prepare comms Prepare the suit Prepare to don the suit Don BA and lower half of suit Set the variable ventilation system control Don upper half of suit Finalise donning of suit

Answer 54

LPG is colourless and odourless. So it can be detected (‘rotten cabbage’ smell) is added. Boiling point (Propane -42°C; Butane 0°C) Expansion ratio 270:1 Flammability limits (LEL 2% - UEL 10%) Low flashpoint (-104 to -60°C) Vapour density: 1.5 (Air = 1) Specific Gravity: 0.5 (Water = 1)

Answer 55

UN Number: 1075 Hazchem Code: 2YE Dangerous goods class: 2.1

Answer 56

B - Boiling L - Liquid E - Expanding V - Vapour E - Explosion

Answer 57

Very flammable and dangerous as it evaporates or boils at ambient temperature. Volatile concentrations exist before visible cloud or mist. Contact with skin will result in severe cold burns. Considered bulk storage when vessel has >500 litre water capacity. Flame will flash back to source. Large leaks may pool in low lying areas. BLEVE (Boiling Liquid Expanding Vapour Explosion).

Answer 58

Carrier frame Cylinder Cylinder valve Excess flow safety valve Harness Pressure reducer Mechanical low pressure warning whistle – below 55 bar +-5 Battery – 5 segments, battery indicator in mask and handheld module Buddy lights – Green is 300-100bar Yellow 99-60 Red 59-0 Piezo alarm speaker Control module Face mask Demand valve Voice projection speaker

Answer 59

No power Sleep mode Active mode

Answer 60

BA is to be donned at any alarm of fire or hazardous incident prior to investigation of the call Don in fresh air Work in 2 Select channel on radio Deposit BA tally tags at a BA entry prior to entering Check pressure of cylinder Exit with partner

Answer 61

P - PPE, PPC, Equipment A - Air, Partner, HUD lights, Positive test C - VPS working, Radio channel, BA team T - Tally tag, task, tactic

Answer 62

Above 250 for stowing on appliance Above 200 to enter fireground/hot zone Under 100 - exit

Answer 63

Station number Name of wearer Set no. Cylinder pressure Time in (to be entered at BA entry point

Answer 64

79% nitrogen, 21% oxygen, trace carbon dioxide

Answer 65

79% nitrogen,17% oxygen, 4% Carbon dioxide

Answer 66

Are implemented BA operations are limited and not complex No more than one entry point

Answer 67

IC determines Long duration More than one entry point Will have BA BACO control officer

Answer 68

Battery module Buddy breather Control module Carrier frame/harness Demand valve Face mask

Answer 69

Work in pairs. Check each others buddy lights Use plant and sweep. One hand in front. Use back of hand Progress on hand and knees. Communicate and mark any unsafe areas.

Answer 70

Fire is the rapid combination of oxygen with fuel in the presence of heat, typically characterised by flame, a body of incandescent gas that contains and sustains the reaction and emits light and heat

Answer 71

At 7m you loose 50% of the maximum lift At 3m you can lift the capacity of the pump

Answer 72

Is the point where poitive and negative pressure meet.