Theory exam Flashcards by Mitchell Barnes

List 5 general purpose knots

Overhand knot
Clove hitch
Rolling hitch
Bowline
Double sheet bend

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List the 5 characteristics of a good knot

easy to tie
easy to recognise
easy to untie
will not slip
will not reduce the strength of rope

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Define the following ladder term: Raise

Lift a ladder from a horizontal to a vertical position.

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Define the following ladder term: Depress

Lower a ladder against an objective from the vertical position.

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Define the following ladder term: Extend

Extend the fly section of a ladder.

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Define the following ladder term: House

Lower the extended fly section of a ladder.

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Define the following ladder term: Elevate

Return a ladder to the vertical position from against a pitched position.

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Define the following ladder term: Lower

Lower a ladder from a vertical to a horizontal position.

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Define the acronym HPPCG:

Height - Can the ladder reach the objective with minimum 3 rungs?
Projection - Have I achieved a 4:1 height to depth ratio?
Plumbing - Is the ladder perpendicular to the ground?
Clearance - Do I have the minimum clearance above/behind (6m)?
Ground - Is the ground safe/stable enough?

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Define the Emergency signal horn blast sequence for the following: Evacuation

3 blasts of 1 second duration

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Define the Emergency signal horn blast sequence for the following: Cease operations

1 blast of 3 second duration

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Define the Emergency signal horn blast sequence for the following: Resume operations

1 blast of 3 second duration, followed by 1 blast of 1 second duration.

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Define the HOTS acronym.

High temperatures
Oxygen deficient
Toxic atmosphere
Smoke concentration

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What does BLEVE stand for?

Boiling
Liquid
Expanding
Vapour
Explosion

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What is the expansion ration of LPG (Propane)?

270:1

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List and define 4 fire service communication pro words.

Affirmative: yes/correct
Negative: no/incorrect
Roger: I understand
Say again: repeat the last transmission

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True or False: suction hose is built to withstand external pressure.

True

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True or False: delivery hose is built to withstand external pressure.

False

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State the type of pump fitted to the Type 4 heavy pumper.

Godiva WTB-4010 rear mounted multistage pump

What is the Low pressure rated capacity of the pump?

4000 L/min at 1000 kPa

What is the high pressure rated capacity of the pump?

750 L/min at 5500 kPa

What is the maximum flow capacity of the pump?

6200 L/min

Describe the 5 friction loss laws

(DRISL)
1.Friction loss increases directly with the decrease in diameter.
2.Friction loss increases with the roughness of the interior of the house.
3. Friction loss is independent of pressure.
4.Friction loss increases directly as the square of the flow rate.
5. Friction loss increases directly with the length of the hose.

What is the formula for calculating head pressure in kPa?

P = 10 x height

What does RECEO stand for?

Rescue Exposures Containment Extinguish Overhaul

What is a backdraught?

The sudden introduction of oxygen in a burning room full of super-heated gases resulting in an explosion.

What is a flashover?

The sudden and sustained transition from developing stage to the fully developed stage of a fire in a compartment.

List 3 reasons why you would ventilate a structure.

1. Increase visibility for firefighters 2. increase survivability for casualties 3. reduce smoke damage in building

List all of the items of PPC you would wear when responding to a structure fire.

- Structural helmet - Structural jacket - Structural boots - Structural pants - Structural gloves - flash hood

Describe the 4 levels of PPC

Level A - fully encapsulated suit with BA Level B - Splash suit with BA Level C - Splash suit with respirator/p2 mask Level D - structural PPC

Define the term 'primary search'.

A rapid but through search of an area that can be entered safely to locate and remove occupants. Emphasis on speed but not at expense of thoroughness.

Define the term ' secondary search'.

Happens when fire is contained and under control. Emphasis is on thoroughness.

List the four routes of entry for toxic substances.

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

List the 5 advantages of using foam.

1. Uses less water - thus less water damage. 2. Effective against class B fires. 3. Reduces chance of reignition. 4. Can be used to totally flood areas or compartments. 5. Reduces stability problems in shipboard fires due to lightness.

List the 3 methods of extinguishment in compartment fires.

1. Direct attack. 2. Indirect attack. 3. Gas cooling.

What is a **A** class fire. Provide 3 examples.

Carbonaceous solids. - wood - paper - textiles

What is a **B** class fire. Provide 3 examples.

Flammable liquids. - petroleum - alcohols - paints

What is a **C** class fire. Provide 3 examples.

Flammable gases - LPG - Methane - Acetylene

What is a **D** class fire. Provide 3 examples.

Combustible metals - Magnesium - calcium - Potassium

What is a **F** class fire. Provide 3 examples.

Fats and oils - olive oil - vegetable oil - Lard

What 6 items of information is on a bulk transport hazchem placard?

Product name, UN number, dangerous goods class label, contact information, Hazchem code, specialist advice

List 4 dangerous goods classes with examples.

Flammable gasses - LPG, acetylene, methane Flammable liquids - petrol, ethanol Radioactive substance - Plutonium Explosives - dynamite

Label the standpipe from top to bottom

Spindle handle Stuffing box Head Blanking cap Collar Shipping handles Barrel Spindle Spindle threads Lugs Bell Washer Foot

Define BSAHF

BUILDING - structural elements, design/layout SMOKE - colour, volume, location AIR TRACK - direction, velocity HEAT - intensity FLAME - colour, extent, location

List the types of sprinkler systems (WADDRP)

Wet pipe Alternating wet and dry Dry pipe Deluge Residential Pre-action

Label the parts of the Harris radio

1. Channel Selection Knob 2. Power On/Off & Volume Control 3. LED 4. Microphone 5. Push To Talk (PTT) 6. Navigation Pad 7. Duress 8. Top Display Panel 9. Speaker 10. Main Display Panel 11. Menu Selection Buttons 12. Keypad 13. Secondary Off Button 14. Top Display Light 15. Main/Front Display Light 16. Channel Lock 17. Radio Zone Switch

List the parts of sprinkler installation

Flow switch Pressure switch Local Warning Gong (LWG) Installation pressure Town main pressure Alarm valve Drain valve Test cock Combined mains pressure gauge Valve monitoring alarm (VMA) Main stop valve Drain pipe Alarm Signalling Equipment (ASE) Non-return valve (x2) Stop valve (x2) Mains supply 1 Mains supply 2 Jacking pump