SCHE 233L Lab Safety Quiz

7. An activity that is strictly prohibited in the laboratory is Select one: a. performing an unauthorized procedure b. eating or drinking c. performing a careless act d. working alone e. all of the above

e. all of the above

Spills that occur with no injury can generally be cleaned with paper towels and water at home. Select one: True False

True

When performing an experiment at home it is ok to perform the experiment if you are home alone if you have an online safety buddy. Select one: True False

True

10. Safety regulations require that contact lenses NOT be worn in the laboratory. Select one: a. False b. True

a. False

37. If a chemical is spilled onto the top surface of a hotplate while the hotplate is being heated, the chemical should be wiped from the surface immediately with a wet sponge. Select one: a. False b. True

a. False

When performing experiments at home you should adhere to which of the following rules? Check all that apply. Select one or more: a. Wear goggles when performing any experiment. b. Keep food and drink out of the lab area during experimentation. c. Add variables to your experiment as you are performing it. d. Select a lab site that is well ventilated with a stable working surface and access to supplies.

a. Wear goggles when performing any experiment. b. Keep food and drink out of the lab area during experimentation. d. Select a lab site that is well ventilated with a stable working surface and access to supplies.

Precautions to take when completing an experiment at home do not include which of the following? Select one: a. Write down observations when your experiment is complete. b. Never place any instrument or materials in your mouth during an experiment (even if it is food). c. Work with the approved quantities and follow all instructions to prevent accidents. d. Keep experimental materials safely away from children and pets Feedback

a. Write down observations when your experiment is complete.

3. Accidents often result from: Select one: a. all of the above b. an indifferent attitude c. making mistakes d. failure to use common sense e. failure to follow instructions

a. all of the above

46. A small fire Select one: a. all of the above b. can generally be dowsed with a wet towel to put it out c. can quickly grow to become a larger fire d. often can be extinguished by suffocating it Feedback

a. all of the above

18. Who's responsibility is it to be aware of chemical hazards? Select one: a. anyone involved in work in a laboratory b. only the professor c. the student, but only after being informed by a professor

a. anyone involved in work in a laboratory

13. Jewelry is a potential safety issue because: Select one: a. chemicals can be trapped under it, in contact with sensitive skin b. all of the above c. it could be stolen d. it can be damaged by chemical fumes and spills Feedback

a. chemicals can be trapped under it, in contact with sensitive skin

8. Examples of personal protective equipment do NOT include: Select one: a. contact lenses b. all of the above c. long-sleeve shirts d. lab coats e. goggles and long pants

a. contact lenses

19. Material to be disposed of in the laboratory Select one: a. must always be handled in accordance with safety guidelines specific to that class of compound b. must always be diluted copiously with water first c. must always be neutralized first

a. must always be handled in accordance with safety guidelines specific to that class of compound

23. DANGER most accurately signifies Select one: a. that the hazards can cause serious injury b. that the hazards can cause less than serious injury c. that users should be careful when using, handling, or storing the chemical

a. that the hazards can cause serious injury

11. A student should remove her goggles prior to using the eye wash fountain if she splashes a chemical onto her face. Select one: a. True b. False

b. False

41. Solid chemicals that are spilled on the skin can usually be brushed off with no adverse consequences. Select one: a. True b. False

b. False

This quiz has increased my awareness of the importance of safety in a laboratory environment. Select one: a. False b. True

b. True

2. Safety in the instructional laboratory is Select one: a. the responsibility of the professor only b. a shared responsibility c. the responsibility of the student only

b. a shared responsibility

1. To reduce the probability of accidents: Select one: a. use the smallest quantity of material necessary b. all of the above c. use personal protective equipment d. practice the habit of accident prevention e. anticipate the possible consequences of the work you do

b. all of the above

20. Major factors in toxicity include Select one: a. personal factors such as age and gender b. all of the above c. the route of exposure d. dose (includes quantity, frequency of exposure and duration of exposure)

b. all of the above

52. When operating a fire extinguisher, remember the mnemonic term PASS. PASS represents the steps used to properly operate the extinguisher and it stands for which of the following? Select one: a. Pull, Aim, Sneeze, Sweep b. Pull, Aim, See, Sweep c. Pull, Aim, Squeeze, Sweep d. Pull, Access, Seize, Sweep

c. Pull, Aim, Squeeze, Sweep

44. Upon completion of a laboratory exercise, which of the following should be performed prior to signing out of the lab? Select one: a. wash all glassware and return equipment to its proper location b. wash hands c. all of the above d. wipe down the bench area and/or fume hood with a wet sponge e. clean the balance and sink areas

c. all of the above

33. Organic solvents are potential hazards because Select one: a. most organic solvents absorb directly through the skin b. most organic liquids burn c. most organic solvents are volatile and flammable d. all of the above

c. most organic solvents are volatile and flammable

12. Clothing worn in the laboratory should: Select one: a. offer protection from splashes and spills b. be easily removable in case of accident c. be at least fire-resistant d. all of the above

d. all of the above

30. Flammable liquids burn only when their vapor is mixed with air in the appropriate concentration. When handling flammable liquids one should Select one: a. keep containers closed except during transfer of contents b. avoid nearby sources of ignition c. minimize the creation of flammable vapors d. all of the above e. use adequately ventilated work areas

d. all of the above

39. Cleaning glassware can be a safety issue Select one: a. when using soap and water b. when broken glassware is present c. when using strong oxidants d. always

d. always

28. FLAMMABLE means Select one: a. the opposite of "inflammable" b. capable of auto-ignition at or only slightly above room temperature. c. easily ignited and capable of burning rapidly

c. easily ignited and capable of burning rapidly

40. For liquid spills that only affect a small area of skin, immediate flush with flowing water for at least

a. 15 minutes

Before beginning an at home experiment, you should do which of the following? Check all that apply. Select one or more: a. Complete your pre-lab and have it approved by a TA or instructor. b. Have a completed procedure and all of the materials identified in your pre-lab materials. c. Identify all safety precautions associated with the technique and materials. d. Alert someone that you are doing the experiment at home or online.

a. Complete your pre-lab and have it approved by a TA or instructor. b. Have a completed procedure and all of the materials identified in your pre-lab materials. c. Identify all safety precautions associated with the technique and materials. d. Alert someone that you are doing the experiment at home or online.

5. Four fundamental principles underlie all of the work practices in the chemical laboratory. Which of the following is not one of those principles? Select one: a. add ventilation to the lab by opening windows b. plan ahead c. be prepared for accidents d. do not underestimate risks e. minimize chemical exposure

a. add ventilation to the lab by opening windows

29. All containers or laboratory glassware having chemicals in them should be properly labeled. When should a label be placed on a container? Select one: a. prior to adding a chemical to the container b. during use of the chemical in the container c. after the container has been emptied d. after adding a chemical to the container

a. prior to adding a chemical to the container

14. Which of the following types of shoes are recommended by the American Chemical Society for general laboratory work? Select one: a. shoes with uppers made of leather or polymeric leather substitute b. cloth-topped "tennis" or "running" shoes c. sandals d. woven leather shoes e. high heels

a. shoes with uppers made of leather or polymeric leather substitute

42. Larger spills of a hazardous liquid on the skin Select one: a. should be dealt with by taking off all the affected clothes immediately, then using the nearest safety shower b. require immediate use of the safety shower c. can usually be wiped off without serious problem

a. should be dealt with by taking off all the affected clothes immediately, then using the nearest safety shower

When working with acids, bases and organic solvents, latex gloves Select one: a. should never be reused b. may be reused only if they have not been permeated c. may be reused as long as they are clean

a. should never be reused

24. WARNING most accurately signifies Select one: a. that the hazards can cause less than serious injury b. that the hazards can cause serious injury c. that users should be careful when using, handling, or storing the chemical

a. that the hazards can cause less than serious injury

26. Labels on bottles containing hazardous chemicals must indicate Select one: a. one of the signal words, Danger, Warning, or Caution b. all of the above c. the name of the chemical d. the precautionary measures that will protect users e. first aid instructions

b. all of the above

36. When heating a reaction, Select one: a. the equipment should be assembled in such a way that heat can be removed rapidly and easily at any time b. all of the above c. always be careful not to exceed the smoking temperature of the oil if an oil bath is used d. flames should be avoided, unless non-flammable substances are involved

b. all of the above

45. Before you help another person in an emergency, Select one: a. act first, think later b. evaluate the potential danger to yourself c. review the safety policies for the laboratory

b. evaluate the potential danger to yourself

The four routes by which toxic chemicals can enter the body include: a. that the material can degrade rapidly upon exposure to air b. that contact destroys living tissue as well as equipment c. that the material is an oxidant

b. inhalation, ingestion, absorption, and injection

17. When working in the laboratory, cloth or leather gloves are appropriate Select one: a. if no other type of glove is available b. never in the laboratory c. when working around steam d. when working with hazardous chemicals

b. never in the laboratory

CORROSIVE indicates a. that the material can degrade rapidly upon exposure to air b. that contact destroys living tissue as well as equipment c. that the material is an oxidant

b. that contact destroys living tissue as well as equipment

47. The fire alarm should be pulled and the fire department should be called Select one: a. whenever there is a fire of any size whatsoever b. only when a fire is out of control c. if the fire cannot be extinguished by suffocation or dousing with a wet towel

c. if the fire cannot be extinguished by suffocation or dousing with a wet towel

25. CAUTION most accurately signifies Select one: a. that the hazards can cause serious injury b. that the hazards can cause less than serious injury c. that users should be careful when using, handling, or storing the chemical

c. that users should be careful when using, handling, or storing the chemical

4. General guidelines for preventing accidents include: Select one: a. follow all safety instructions carefully b. become familiar with the hazards of equipment to be used c. know where the safety equipment is d. all of the above e. become familiar with the hazards of the chemicals to be used

d. all of the above

6. There is a definite correlation between orderliness and level of safety in the laboratory. In addition, a disorderly laboratory can hinder or endanger emergency response personnel. Which of the following housekeeping rules should not be adhered to? Select one: a. never obstruct access to exits and emergency equipment b. secure all compressed gas cylinders to walls or benches c. properly label and store all chemicals d. store chemical containers on the floor e. clean work areas, including floors, regularly Feedback

d. store chemical containers on the floor