STP ASSESSMENT 06 Hazardous substances

What does the above symbol represent?

• Movement of large wheeled machinery

• Radiation may be present

• Three phase motors operating close by

• High speed fans operating

What does the above symbol represent?

• Sunblock must be worn as a safe working practice

• Bright lights operating

• Sunlight reflection may be harmful, wear sunglasses

• Laser or laser radiation warning

What is probably the easiest way to identify a hazardous substance spill?

• By tipping with your finger, and a small taste to identify if it is acidic

• Liquid spill on the floor, and possibly a bad odour

• Signs would have been put up before the spill occurred

• The substance would be bright red in colour

On identifying a hazardous spill, the next step is to . . .

• Alert people in the area and your supervisor

• Wash with water and anti-hazard soap as soon as possible

• Shine as much light into the area as possible to be able to anticipate for further issues

• Use a carbon dioxide extinguisher to neutralise the dangers

Which lamp contains dangerous phosphorous gases, and should never be thrown into the rubbish bin?

• Incandescent

• Fluorescent

• L.E.D.

• Phosphor plastic lamp

What does PCB stand for in hazardous materials?

• Printed Circuit Board

• Polychlorinated Biphenyls

• Phosphor Containing Bi-metals

• Poisonous Carbon Bi-metals

Where would PCB's come from ?

• Excess waste from food processing

• Capacitors and transformers

• Carbon gases

• Corroded metal containers

Where would you most likely find a radiation warning sign?

• In medical centres by X-ray and MRI machines

• On the beach in areas of excess sun

• Close to bomb shelters

• In atomic powered wind tunnels

Why is asbestos very dangerous?

• It breaks into small fragments that cut into the skin, causing skin diseases

• It is highly flammable, even with the smallest of ignition materials

• It contains tiny fibres which lodge in lungs and can form asbestosis (A type of lung cancer)

• It is very often mistaken as salt, as it looks identical, but is extremely poisonous to eat