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Professional Development
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Professional Development
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Dave Baldock
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24 Slides • 0 Questions
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Core 04
Revision

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Safety signs: There are 5 different colours
green
blue
yellow
red
red and white
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Green signs are safety signs
"THE SAFE WAY"
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Blue signs are MANDATORY
"YOU MUST DO SOMETHING"
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Yellow signs:
These are warning or caution signs
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Red signs are Prohibition signs
"YOU MUST NOT"
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Red and white signs
These represent fire signs
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Fire Extinguishers
Do you know the colours of fire extinguishers?
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All fire extinguishers are red
They have a coloured lable to identify what they will emit and should only be used on the correct fires as not to cause further injury
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RED
These are all red
They spray water
They are for use on: Organic fires e.g. paper, wood, straw, plastics, coal, soft furnishings
They should not be used on electrical or deep fat fires
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BLUE
These emit Dry powder
Organic solids plus flammable liquids e.g. petrol, oil, solvents, paraffin, tars; flammable liquids e.g. propane, butane, methane; metals and swarf; electrical fires
Not suitable for electrical fires over 1,000 volts
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CREAM
These are for Organic solids, flammable liquids.
They are not suitable for domestic fires
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Black
These are Carbon Dioxide
We use these on electrical fires
Suitable for high and low voltage electrical fires
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Yellow
Wet Chemical
These are used on Organic solids, cooking oils and fats
These are suitable for extremely high temperature fires
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A FIRE NEEDS THREE THINGS TO SURVIVE CAN YOU NAME THESE?
Heat
Fuel
Oxygen
Remove any one of these three and a fire will die!
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Drawing scales
Drawings are drawn to scale to enable them to fit on the paper
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Block plan
These show the site and surrounding area.
Common scales are
1:250 - 1:2500
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Site plans these show the whole site or individual plots.
Common scales of
1 : 200 - 1 : 500
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Working drawings
Common scales of:
1:50 - 1:100
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Assembly or component drawings
Common scale of:
1:5 - 1:20
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Hatchings
Symbols to identify components
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Abbreviations
Components are commonly abbreviated.
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Website for acronyms or abbreviations
https://www.designingbuildings.co.uk/wiki/Construction_industry_acronyms
Core 04
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