ASSESSMENT 5: Environment and Biosafety Research Ethics Committee (EBREC): Assessment Questions Survey

Please provide your details below before starting the assessment:

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* 1. Name and Surname:

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* 2. Staff / Student Number (if you are not a UFS staff member or student, you can enter "NA"):

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* 3. Department Name (if you are not with a department at UFS, you can enter "NA"):

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* 4. Email Address:

Section 1: Environmental and Safety Considerations in Physics, Part 1 and 2

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* 5. Why is understanding laboratory risks essential in the physical sciences?

To increase the speed of experiments

To ensure personal and environmental safety

To protect people, the environment, and comply with regulations

To avoid repeating experiments

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* 6. Which of the following requires environmental and biosafety ethics clearance?

Measuring melting points of solids

Handling genetically modified organisms

Working with sodium chloride crystals

Using deionised water for cleaning glassware

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* 7. What is the primary purpose of ethical clearance?

To reduce paperwork for researchers

To ensure compliance with safety and environmental standards

To allow unrestricted use of chemicals

To slow down research approval

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* 8. What is a major hazard in chemistry laboratories?

Dust

Broken electrical cables

Flammable solvents and reactive chemicals

Loud noise from machinery

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* 9. Which statement about PPE is TRUE?

Gloves are only needed for corrosive compounds

PPE provides the last line of defence against hazards

Lab coats are optional when handling solvents

PPE replaces all other safety procedures

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* 10. What key information does a safety data sheet (SDS) provide?

The molecular structure of the chemical

Chemical supplier details

Hazards, handling, and first aid measures

Names of researchers who designed the chemical

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* 11. What is the purpose of a standard operating procedure (SOP)?

To train students in waste recycling

To give step-by-step safety and handling instructions

To list chemicals used in a project

To summarise experiment results

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* 12. What is the correct practice when diluting acids?

Add water to acid

Add acid to water slowly

Add both at the same time

You can use a metal container for mixing

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* 13. Why must reducing and oxidising agents be stored separately?

They are expensive chemicals

They may react violently or cause fires

They evaporate quickly

They produce harmless gases

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* 14. Which of the following gases can cause asphyxiation?

Helium

Nitrogen dioxide

Carbon monoxide

Oxygen

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* 15. Why are heavy metals such as mercury and lead of environmental concern?

They dissolve easily in water

They can neutralise acids

They are toxic and bioaccumulate in organisms

They are non-reactive elements

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* 16. What is the main risk associated with cyanide compounds?

Corrosion

Explosion

Respiratory failure or death

Eye irritation and skin burns

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* 17. Why should nanoparticles be used in sealed environments?

They lose activity in the open air

They are expensive to produce

They can cause respiratory and cellular damage

They evaporate quickly

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* 18. Which practice helps protect against radiation exposure?

Wearing thick gloves

Using shielding, minimising exposure time, and maintaining distance

Coming closer to inspect the source

Turning off warning signs

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* 19. When classifying chemical waste, how should mixtures be treated?

By the size of the container

By colour of the waste

Based on the most hazardous component

Based on the least hazardous component

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* 20. Which of the following should be disposed of in a separate, labelled container?

Empty reagent bottles

Silica waste

Plastic pipettes

Paper towels

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* 21. Which of the following is correct about fume cupboard use?

Keep the sash fully open at all times

Place equipment at the front edge

Keep materials at least 15 cm inside the hood

Store chemicals inside when not in use

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* 22. Why should incompatible chemicals not be stored together?

They may evaporate faster

They can react dangerously, causing fires or explosions

They occupy too much space

They become less reactive

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* 23. What is a good practice for maintaining a chemical inventory?

Keep it private and inaccessible to others

Update it whenever chemicals are received, used, or disposed of

Update the list once a year

Record toxic chemicals

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* 24. What is the first action to take during a laboratory emergency?

Wait for a supervisor to arrive

Get out immediately

Stay calm and follow emergency procedures

Finish your experiment