Page 21 - CITS - Fitter - Trade Theory

FITTER - CITS

Safety signs
As you go about your work on a construction site you will see a variety of signs and notices. Some of these will
be familiar to you - a ‘no smoking’ sign for example; others you may not have seen before. It is up to you to learn
what they mean - and to take notice of them. They warn of the possible danger, and must not be ignored.
Safety signs fall into four separate categories. These can be recognized by their shape and colour. Sometimes
they may be just a symbol; other signs may include letters or figures and provide extra information such as the
clearance height of an obstacle or the safe working load of a crane.
The four basic categories of signs are as follows
• prohibition signs
• mandatory signs
• warning signs
• information signs
• Prohibition Signs: • Mandatory Signs:
Prohibition signs SHAPE Circular Mandatory signs SHAPE Circular
COLOUR Red border COLOUR White symbol
and cross bar. on blue
Black symbol background
on white
background MEANING Shows what
MEANING Shows it must must be done
not be done Example Wear hand
Example Nosmoking protection

• Warning Signs: • Information Signs:
Warning signs SHAPE Triangular Information signs SHAPE Square of oblong.
COLOUR Yellow COLOUR White symbols
background on green
with black background
border and MEANING Indicates or
symbol. gives
MEANING Warns of information of
hazard or safety provision
danger. Example First aid point.
Example Caution, risk of
electric shock.

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CITS : CG & M - Fitter - Lesson 1