Safety - PAKAMAS TONGCHAROENSIRIKUL | Biblioteka

Instrukcije

Please choose one correct answer for each question.

1

What should you do if you spill a chemical on your skin while in the laboratory?

Wipe it away with a paper towel

Wash immediately with water and inform your teacher

Leave it to dry then wash it off

Treat it with a chemical neutralizer

1

Why are loose clothing and dangling jewelry not advisable in a chemistry lab?

They are not comfortable for lab work

They can catch fire or get caught in equipment

They might steal attention away from the experiment

They are not stylish

1

Why is it necessary to read the entire experimental procedure before starting the experiment?

To memorize the steps

To understand potential hazards and prepare accordingly

To finish the experiment faster

To ensure all equipment is available

1

What should be done if working with volatile or poisonous gases?

Hold your breath while handling the gases

Conduct the experiment in an open classroom

Conduct the experiment in a fume hood

Wear a mask and gloves

1

What does the exclamation mark pictogram in a chemical lab signify?

Corrosive

Explosive

Toxic

Irritant or minor health hazard

1

What safety pictogram warns of substances that could cause a fire?

null

1

Which pictogram indicates a substance is dangerous to the environment?

null

1

What does the skull and crossbones pictogram represent?

Gas under pressure

Explosive

Oxidizing

Toxic material

1

What essential information does a Safety Data Sheet (SDS) provide?

Only storage instructions

Only manufacturer's details

Details about a chemical product’s hazards and safe handling

Only the chemical's name

1

How many sections does a standard Safety Data Sheet (SDS) have?

16

8

10

12

1

Which section of an SDS would you find first aid measures?

Section 1

Section 8

Section 7

Section 4

1

Where can you find information about the necessary personal protective equipment (PPE) in an SDS?

Section 3

Section 5

Section 11

Section 8

1

Which section of the NFPA diamond represents reactivity?

Red

White

Yellow

Blue

1

What does a 4 indicate in the health section of the NFPA label?

Not hazardous

Minor hazard

Life-threatening, even under brief exposure

Extreme danger, under prolonged exposure

1

What does the blue section of the NFPA diamond represent?

Health hazard

Specific hazard

Reactivity

Flammability

1

In the NFPA label, what does a '4' in the red section indicate?

Slight flammability

High reactivity

Extreme flammability

Minimal flammability

1

What does a '0' in the white section on an NFPA label signify?

Alkaline substance

Special hazards exist

Acidic substance

No special hazards

1

In the NFPA system, what does yellow color signify?

Specific hazard

Reactivity

Flammability

Health hazard

1

If a fire starts in the lab, what is your first action?

Evacuate and report to your teacher.

Ignore it if it's small.

Call 911 immediately.

Attempt to put it out with water.

1

Why is eating or drinking in the lab prohibited?

To keep the lab clean.

To avoid ingestion of chemical residues.

Because foods may explode when heated.

To prevent distraction in the lab.

1

Why is eating or drinking in the lab prohibited?

Because foods may explode when heated.

To prevent distraction in the lab.

To keep the lab clean.

To avoid ingestion of chemical residues.