Examples of personal protective equipment do NOT include:

• goggles and long pants

• lab coats

• contact lenses

• long-sleeve shirts

• all the above

Regular inspection of safety equipment such as eye washes and safety showers must be carried out

• every week

• once a month

• yearly

• four times a year

Clothing worn in the laboratory should:

• be easily removable in case of accident

• offer protection from splashes and spills

• be at least fire-resistant

• all of the above

Jewelry is a potential safety issue because:

• it can be damaged by chemical fumes and spills

• chemicals can be trapped under it when in contact

• it could be stolen

• all of the above

Which of the following types of shoes are recommended for general laboratory work?

• cloth-topped "tennis" or "running" shoes

• sandals

• high heels

• woven leather shoes

• none of the above

When using gloves as personal protective equipment, which of the following procedures should be followed? You can choose more than one answer.

• inspect gloves for small holes or tears before use

• remove gloves before handling objects such as doorknobs, telephone, pens and computer keyboard

• decontaminate or wash gloves before removing them

• replace gloves periodically, depending on the frequency of use

• wear gloves of a material known to be resistant to permeation by the substances in use

Material to be disposed of in the laboratory

• must always be diluted copiously with water first

• must always be neutralised first

• must always be handled in accordance with safety guidelines specific to that class of compound

• all of the above

The following can be the sources of fire and explosion accidents in the laboratory, except

• malfunction electrical appliances

• chemical reactive reaction

• open fire

• hot surface

• all of the above

The four routes by which toxic chemicals can enter the body include:

• inhalation, indigestion, transmission of bodily fluids and interjection

• inhalation, constipation, instigation and investigation

• inhalation, ingestion, absorption and injection

• inhalation, indigestion, absorption and instigation

There happened to be a fire accident in the laboratory that caused by flammable gases. What type of fire extinguisher(s) can be used to put off the fire? You can choose more than one answer.

• water

• dry powder

• foam

• CO₂