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WorksheetsKESELAMATAN DAN PENGURUSAN MAKMAL
Total questions: 20
Worksheet time: 18mins
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
The label DANGER on a chemical container most accurately signifies
that the hazards can be happening soon
that users should be careful when using, handling or storing the chemical
that the hazards can cause serious injury
all of the above
The label CORROSIVE on a chemical container indicates
that the material is an oxidant
that contact destroys living tissue as well as equipment
that the material can degrade rapidly upon exposure to air
all of the above
What is the meaning of this symbol?
the chemical is toxic or poisonous
the chemical is corrosive
the chemical can caused serious health hazard
the chemical is explosive if consume
All container or laboratory glassware having chemicals in them should be properly labeled. When should you place a label on a container?
prior to adding a chemical to the container
after adding a chemical to the container
after the container has been emptied
during use of the chemical in the container
A chemical has the following labels on its container. What does it mean?
It can caused environmental hazard, is flammable and harmful
It can caused serious health hazard, is flammable and harmful
It is reactive, may explode if heated and harmful
It can caused environmental hazard, may explode if heated and can cased serious health hazard
Chemicals are also label by using colour codes. Which of the colour codes below is wrong?
Red - Flammables
Yellow - Reactives / Oxidisers
Blue - Toxic / Health Hazard
Green - Corrosive / Contact Hazard
Striped - Incompatible
Choose from the following, pairs of chemicals that should be stored separately.
Acid and Base / Alkaline
Oxidant and Flammable
Chemicals that are water reactive and Water
Dry chemicals and Liquid chemicals
Chemicals being transported outside the laboratory or between stockrooms and laboratories should be in break-resistant secondary containers. Why this is important?
How do you store chemicals that are poisonous?
One of your friend have spill a large amount of acid. What should you do? Explain in point forms actions that you will take to overcome this accident.
