Laboratory Safety Quiz (online) PDF

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Name: Harsh Bajaj

Course and Section: CHEM 1280 : 004

Date:24 Jan 2021

Laboratory Safety Quiz (20 questions, 20 points)

1. Which of the following types of shoes are recommended by the American Chemical Society for general laboratory work? a. b. c. d.

cloth-topped "tennis" or "running" shoes sandals woven leather shoes high heels

2. What should you do if you spill an acid on a counter in the lab? a. b. c. d.

immediately wipe the spill up and let it dry out pour base on the spill and then wipe it up dilute the acid with water and wipe it up, then rinse the surface with more water use a pipette to draw up the acid and dispose of it in the waste container

3. What should you do if you break a beaker in the lab? a. b. c. d.

carefully pick up the pieces with your hands and place in the sharps box alert a TA and they should sweep up the glass and place it in the sharps box sweep up the glass and place it in the sharps box push the glass under a table

4. You need to transfer some NaOH solution from a very large stock bottle to your reaction flask. How do you do this correctly? a. b. c. d.

use a funnel to pour the NaOH from the stock bottle to your reaction flask set up a siphon system to retrieve NaOH from the stock bottle to your reaction flask directly pour the NaOH from the stock bottle to your reaction flask use a smaller container to retrieve the NaOH and then transfer the NaOH to your reaction flask

5. When should you wear nitrile gloves? a. b. c. d.

when handling room temperature chemicals and glassware when moving items off of a hot plate opening doors and typing on computers outside of the lab

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Name: Harsh Bajaj

Course and Section: CHEM 1280 : 004

Date:24 Jan 2021

6. Which of the following is allowed in the lab? a. b. c. d.

applying makeup or lip balm eating a small snack using a calculator doing your own reactions

7. You are weighing out some NaCl on a balance using a weigh boat and overshot your targeted mass amount. What do you do with the excess NaCl? a. b. c. d.

remove the excess NaCl with a spatula and return it to the stock container remove the excess NaCl with a spatula and place in the waste container remove the excess NaCl with a spatula and toss it into the sharps bucket remove the excess NaCl with a spatula and toss it into the trash

8. You are cleaning glassware and you accidentally break the glassware and cut yourself. What should you do? a. b. c. d.

alert your TA, rinse the wound with water, and apply pressure until more first-aid is done frantically freak out your TA and the other students about the incident and leave the lab leave the lab unannounced and seek first-aid elsewhere wrap the wound with a cloth and do not tell anyone

9. What is the main danger behind letting long hair down in the lab? a. b. c. d.

long hair can react with chemicals long hair is against the rules on campus students might judge you for having long hair long hair can get caught in equipment or catch fire

10. What should you do if your clothes catch on fire? a. b. c. d.

pat the fire out with your gloves go to the distilled water area and douse yourself with the water immediately either douse yourself in the safety shower or wrap and roll in a fire blanket leave the lab and run down the hall to the nearest water source

11. You are done with a reaction that has been done in water. The reaction contains lead which is toxic to aquatic life and humans. How do you dispose of this? a. b. c. d.

pour the waste down the drain after adding some HCl pour the waste in the aqueous waste container leave the reaction in your hood for the TA to dispose of it pour the waste in the trash or sharps box

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Name: Harsh Bajaj

Course and Section: CHEM 1280 : 004

Date:24 Jan 2021

12. You are working with a hot plate in the hood to heat a reaction. What hazards should be aware of? a. only need to make sure that your hair is pinned up b. only the reaction c. insulated gloves, pinned up hair, no paper in the hood, no combustible solvents and materials, the reaction itself d. the hot plate temperature only

13. When should you take off your safety goggles while in the lab? a. b. c. d.

when chemicals are not present only when not working in the hood only when not working with glassware never

14. You touched a surface in the lab and your hands feel slippery. What should you do? a. b. c. d.

immediately rinse your hands with water and let the TA know that a base is on the surface rinse your hands with water put a weak acid on your hands and then rinse with water wipe your hands off with a paper towel and let the TA know that a base is on the surface

15. If you need to leave the lab to use the washroom, what do you need to do before you leave? a. alert your TA, verify that any reactions are safe to leave, exit the lab b. alert your TA, verify that any reactions are safe to leave, remove gloves, exit the lab, remove goggles (unless you want to look dorky  ) c. leave the lab at once d. verify that any reactions are safe to leave and then exit the lab 16. What should you do if you burn you hand on a piece of hot equipment? a. b. c. d.

wrap your hand with gauze put burn cream on it and carry on with the lab quickly run cool water over your hand then alert your TA to apply more first aid stick your hand in the ice bath that you were using for your experiment and alert your TA

17. True of False: It is ok to chew gum in the lab? a. True (for sure, its not food, so its ok) b. False (it counts as “food” so no, we cannot have it in the lab)

18. What is one danger behind wearing spandex in the lab? Page | 3

Name: Harsh Bajaj

a. b. c. d.

Course and Section: CHEM 1280 : 004

Date:24 Jan 2021

Spandex will absorb harmful salts. Spandex is reactive with water. The spandex will melt to your skin when working with flames. There is no danger with wearing spandex in the lab.

19. You are working in the lab and you get some vinegar in your eyes. OUCH. What do you need to do next? a. b. c. d.

frantically rush to the sink and have the TA pour water in your eyes grab a paper towel and blot your eyes grab a beaker of water and pour the water into your eyes calmly go to the eyewash station and rinse your eyes for 15 minutes, then alert your TA

20. What is the most important thing that you should be watchful for while in lab during the semester? a. b. c. d.

avoiding damage to your clothes your safety your GPA your lab performance

Answer Sheet Page | 4

Name: Harsh Bajaj

Course and Section: CHEM 1280 : 004

Date:24 Jan 2021

Type in your letter answers to the questions on this page. 1.

C

2.

C

3.

B

4.

D

5. A 6.

C

7.

B

8. A 9.

D

10. C 11. B 12. C 13. D 14. A 15. B 16. C 17. B 18. D 19. D 20. B

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