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mymodules.dtls.unisa.ac.za
CHE1503-25-Y

CHE1503-25-Y

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What should you do with paper or used matches in the laboratory?

Take them home to dispose of them

Dispose of them in the chemical waste container

Throw them in the dedicated wood container

Throw them down the drain

Throw them in general trash bins

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If you spill solid chemicals on a balance:

Brush off any spills very gently.

Allow the chemicals to rest on the balance for at least 15 minutes before brushing it off

Clean it immediately using a bucket filled with water and a mop.

Ignore it since you are not trained to handle spilled chemicals.

Use a disinfectant like “Dettol”.

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Why should sleeves be kept at an appropriate length in a laboratory?

To show off tattoos

None of the other options.

To avoid interference with work and prevent spills from contacting skin

To keep your hands warm

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Which of the following is correct about wearing loose or baggy clothing in a laboratory?

You are not allowed lose clothing in the laboratory.

To stay comfortable

To match with laboratory décor

To look stylish

To prevent catching on equipment and causing accidents

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Why is it important to wear closed-toe shoes in a laboratory setting?

To match with laboratory equipment

None of the other options.

To keep feet comfortable

To make a fashion statement

To protect against chemical spills and falling objects

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Which of the following is considered appropriate attire for working in a laboratory?

Formal business attire

Cap or beany with long pants and closed shoes.

Loose-fitting clothing and open-toe sandals

Short sleeves, long pants, and closed-toe shoes

Tank tops and shorts

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What should you do if your clothing gets contaminated with a chemical in the laboratory?

Wait until the end of the day to change clothes

None of the other options.

Inform colleagues for help

Ignore it and continue working

Immediately remove the contaminated clothing and rinse skin with water

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How should lab coats or protective clothing be worn in a laboratory?

Tied loosely around the waist

Worn inside out for convenience

Fully buttoned or secured to cover skin and clothing

Open at the front to stay cool

Back to front to ensure that the full front is protected

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Which of the following is NOT a recommended accessory to wear in a laboratory?

Disposable gloves

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When should you remove personal protective equipment (PPE) such as gloves and safety goggles in a laboratory setting?

Only after you are outside the laboratory.

After finishing all tasks and leaving the laboratory area.

You only need one of the two items listed, not the other.

Only if the laboratory appears clean and free of hazards.

Immediately upon entering the laboratory to feel more comfortable.

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