C.V.U.S.D Lab Safety Test

Name:

Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. For students to participate in laboratory activities, they must score a minimum of 85%. Students must hand correct their test to 100% before participation in a lab activity.
	1.	Any spill on the floor can cause an accident. Always clean it up A. at once. B. during clean-up time. C. when you have time. D. at the end of the period.
	2.	After heating glass tubing to bend it, the soonest you may safely handles the tubing is A. within 30 seconds B. after you are sure it is cool. C. after school. D. the next day.
	3.	Playing (as opposed to working) in the laboratory or bothering another person is A. always against the rules. B. all right. C. not dangerous. D. all right if you are working.
	4.	To be able to put out a fire quickly and safely, you should know A. how to use fire extinguishers. B. where the extinguishers are located. C. which extinguisher is used for each class of fire. D. all of the above.
	5.	If you think there is something wrong with a piece of equipment you are using, stop, turn it off, and tell A. the class leader. B. the teacher. C. another student. D. the custodian.
	6.	If acid gets on your skin or clothes, wash it at once with A. sulfuric acid. B. soap. C. water. D. oil.
	7.	If you see something in the classroom or laboratory that is dangerous, tell the teacher A. when you have time. B. at once. C. after class. D. after school.
	8.	Whenever you are in the classroom or laboratory, you should wear A. sandals. B. closed shoes. C. open-toed shoes. D. no shoes.
	9.	Rags or paper towels with flammable liquids or solids on them must be put in A. a cardboard box. B. a metal or ceramic container with a lid. C. a wastebasket. D. a trash can.
	10.	Disturbing other students while they are working in the laboratory is A. helpful. B. poor manners. C. dangerous D. the quickest way to do the job.
	11.	To remove an electrical plug from its socket, you should A. pull the plug itself. B. pull on the cord. C. pull on the appliance. D. none of these (A, B, or C).
	12.	Cabinet drawers and doors that are left open cause a hazard and should be A. walked around. B. closed by you. C. left alone. D. closed by the teacher only.
	13.	If there is a fire in the laboratory, notify the teacher at once; then prepare to A. evacuate the building or laboratory. B. remove flammable materials. C. open windows. D. rapidly clean the laboratory.
	14.	If flammable liquids, such as alcohol, are spilled, you should first A. let them dry up. B. use a fire extinguisher. C. tell the teacher. D. pour water on them.
	15.	Chemicals, small parts, glassware, and stirring rods are not to be A. used in the laboratory. B. put in your mouth. C. out on the bench. D. taken from boxes.
	16.	When you work with laboratory chemicals and Bunsen burners, long hair must be A. cut off. B. held with both hands. C. kept out of the way by wearing a band, hat or hairnet. D. combed nicely.
	17.	To prevent accidents during laboratory activities with chemicals and equipment, you should A. use shortcuts. B. follow your teacher’s direction. C. hurry ahead of teachers. D. ask someone else to do the work.
	18.	Eyeglasses do not provide as much protection as A. a face shield. B. safety glasses. C. splash-proof goggles. D. any of these (A, B, or C).
	19.	Alcohol, acetone, and other volatile materials that can burn easily should never be used near A. another person. B. an open flame. C. a laboratory counter. D. a work table.
	20.	If you see a fire in an apparatus assembly or a burning liquid, such as alcohol, it is best to put it out with A. the fire blanket. B. water from the sink. C. your coat. D. the ABC fire extinguisher.
	21.	You must wear approved eye protection while working in the laboratory A. to improve your vision. B. sometimes. C. to avoid myopia. D. whenever the laboratory instructions tell you to.
	22.	All floors, aisles, and passageways should be kept clear of A. teacher and students. B. laboratory equipment and chemicals. C. laboratory equipment only. D. chemicals only.
	23.	When you work with laboratory chemicals, equipment, or burners, you must wear A. loose clothes. B. goggles. C. contact lenses. D. loose jewelry.
	24.	When preparing dilute solutions of an acid, carefully pour A. the acid into water. B. the acid into the container. C. water into the acid. D. both liquids at once.
	25.	Before you touch an electrical switch, plug or outlet A. your hand must be dry. B. ask the custodian. C. your hands must be clean. D. ask the nurse.
	26.	The correct way to move about the classroom or laboratory is to A. run. B. walk. C. hurry. D. skip.
	27.	To put out a fire in a person’s clothing, use A. the fire blanket. B. a handy chemical. C. the wind from running. D. the CO₂ fire extinguisher.
	28.	To insert glass tubing into a rubber stopper, you should (after fire polishing and cooling) A. lubricate with water or glycerin. B. use a towel for protection. C. twist carefully. D. all of these (A, B, and C).
	29.	You should prepare for each laboratory activity by reading all instructions A. after school. B. while you are working. C. before you start work. D. next week.
	30.	Small quantities of spilled acids can be made safe with A. gasoline. B. alcohol. C. water. D. sodium bicarbonate solution (baking soda)
	31.	When measuring small amounts of liquids with a pipette, draw the liquid into the tube by using A. your mouth. B. your thumb. C. a mechanical pipette filter. D. the palm of your hand.
	32.	If you break a piece of glassware or other equipment, tell the teacher A. the next period. B. at clean-up time. C. at once. D. never.
	33.	When heating substances in a test tube, be sure the open end of the tube points toward A. yourself. B. no one. C. your partner. D. a classmate.
	34.	Small amounts of spilled bases can be neutralized and made safe with A. gasoline. B. alcohol. C. water. D. dilute acetic acid solution (vinegar).
	35.	If you are hurt (cut, burned, and so on) tell the A. nurse at once. B. teacher at once. C. class at once. D. doctor after school.
	36.	When you use laboratory equipment or chemicals, you should give the procedure all of your A. interest. B. attention. C. effort. D. all of these (A, B and C).
	37.	Helping to clean up the classroom or laboratory is the job of A. new students. B. old students. C. each student. D. the teacher.
	38.	Laboratory aprons, when provided, are for A. the protection of you and your clothes. B. wiping your hands on . C. others to hang up. D. when you are wearing your best clothes.
	39.	All chemicals should be stored in A. tin cans. B. dark brown bottles. C. clear glass bottles. D. properly labeled containers.