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Safety In Chemical Laboratory
Test Description: Chemicals present some risks for their users. They should be handled with care. Chemical experiments to be enjoyable,necessitate guidelines to follow so safety is ensured.
Instructions: Answer all questions to get your test result.
1) Choose the action that may lead to an accident into laboratory.
A
Wash hands before and after an experiment.
B
Correct protective coating must be worn.
C
Smell chemicals is forbidden
D
Taste or touch chemicals is allowed.
2) Choose the rule that must be followed, so that safety is ensured.
A
Eat food or drink beverages in laboratory.
B
No protective coating must be worn.
C
Work areas should be kept clean and tidy at all times.
D
Horseplay in laboratory.
3) Choose the safety guideline that regulates the usage and handling of chemicals.
A
Hot objects can be handled directly with hands.
B
Pour liquids carefully using glass rod.
C
Stopper the test tube with your thumb.
D
Solid chemicals can be transferred using hands.
4) Indicate the action that may lead to an accident in chemical laboratory.
A
Use spatula to transfer solids.
B
Use pipet filler to draw liquid into pipet.
C
Heat a closed flask.
D
Avoid splashing when transferring liquids.
5) Indicate the action that may lead to an accident in chemical laboratory.
A
Use tongs to handle hot objects.
B
Never cool suddenly a heated glass container.
C
Close containers tightly after use.
D
Smell chemicals to check odors.
6) Indicate the action that may lead to an accident in chemical laboratory.
A
Never mouth-pipet any chemicals.
B
Use a stopper to close a test tube.
C
Don't try to check for odors directly.
D
When heating test tube, point its mouth towards yourself
7) Indicate the action that ensures safety in handling chemicals.
A
One can use wooden/metallic tongs to handle hot objects.
B
One can stopper the test tube with his thumb.
C
One can heat a closed flask.
D
One can use his hands to transfer solids.
8) Indicate which of the following is not a protective clothing or equipment.
A
Rubber gloves.
B
Necklaces.
C
Laboratory coat.
D
Eye classes or eye goggles.
9) Choose the appropriate statement that describes flammable substances.
A
They can catch fire on only brief contact with air.
B
They can not catch fire.
C
They can be dangerous to health.
D
They can cause serious poisoning.
10) Indicate the action that does not ensure safety in handling chemicals.
A
Use your hand to fan vapours towards your nose.
B
Use a stopper to close the test tube.
C
When heating test tube, point its mouth away from yourself
D
One can use his mouth to draw liquid into the pipet.
*select an answer for all questions
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