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- 1. Multiple Choice
What does this symbol mean?Environmental ToxicityHarmfull/IrritantCorrosivesAcute Toxicity - 2. Multiple ChoiceWhich of the following is incorrect about lab safety?Students must not enter or work in laboratories unless a teacher is present.It is OK for me to drink in the lab as long as I do not eat.Safety goggles must be worn whenever there is any risk of injury to the eyes.Wash hands thoroughly after all practical works.
- 3. Multiple ChoiceIf you break a beaker in the lab, the first thing you should do isReport to your teacherClean up the broken glass using bare handsPut the broken glass in sharps & broken binCarefully pick up the broken pieces using tongs and/or small brush with dustpan
- 4. Multiple ChoiceWhich of the following procedure is incorrect?Light the Bunsen burner with the air hole openLight the Bunsen burner with the air hole closedThe lit Bunsen burners should not be leave unattendedAlways point the top ends of test tubes away from people when doing heating
- 5. Multiple ChoiceSelect the two examples where proper safety precautions are observed.D & EB & CC & DA & C
- 6. Multiple ChoiceWhich of the following statements is/are correct?Wash hands thoroughly after all practical worksChipped or cracked glassware should not be usedUnlabelled chemicals should not be usedAll of the above
- 7. Multiple ChoiceWhich of the following statement on Electrical Safety is correct?Power points can be overloadElectrical equipment with exposed cables can be useDo not touch electrical appliances with wet handsDo attempt to repair an electrical device
- 8. Multiple ChoiceWhat does this symbol means?Harmful/IrritantAcute ToxicityEnvironmental ToxicityExplosives
- 9. Multiple ChoiceWhen heating liquid in test tube, one shouldClose test tube tightly with corkHold test tubes at a slant (slope) pointed away from everyoneHold the test tube pointing upwardNone of the above
- 10. Multiple ChoiceWhich of the following statement on glassware safety is correct?All breakages should be recorded in a breakage form yearlyGlassware should not be stored in a secure and convenient mannerChipped glassware can be usedBroken glasses to be disposed into the waste bin
- 11. Multiple ChoiceWhich of the following statement on chemical safety is incorrect?Wear protective goggles whenever heating or pouring hazardous chemicalsNever mix chemicals together unless you are told to do soYou should taste chemicals in the labBreakages, accidents and spillage should be immediately reported to the teacher
- 12. Multiple ChoiceWhen you find an unlabelled bottle of chemical in the lab, you shouldSmell it to see what it isPour it down the sinkUse it for your practicalReport to the teacher
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