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Lab Safety Test
By Reina Ali
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Last updated almost 6 years ago
39 questions
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Question 39
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If you see something in the classroom or laboratory that is dangerous, tell the teacher
when you have time
after class
at once
after school
Rags or paper towels with flammable liquids or solids on or in them must be put in
a cardboard box
a recycle bin
a metal or crockery container with a lid
a trash can
Any spill on the floor can cause an accident. Always clean it up
at once
when you have time
at the end of the day
at the end of the period
Alcohol, acetone, and other volatile materials that can burn easily should never be used near
another person
a laboratory counter
an open flame
a work table
When you work with laboratory chemicals and bunsen burners, long hair must be
cut off
kept out of the way by wearing a hair tie, band, or net
held with both hands
styled nicely
When you work with laboratory chemicals, equipment, or burners, you must wear
loose clothes
contact lenses
goggles
jewelry
If you are injured (cut, burned, and so on) tell the
nurse
class
teacher
doctor at your next appointment
Whenever you are in the classroom or laboratory, you should wear
sandals
open toe shoes
closed toe shoes
no shoes
If you think there is something wrong with a piece of equipment you are using, stop, turn it off, and tell
the ASB president
your lab partner
the teacher
the custodian
If you break a piece of glassware or other equipment, tell the teacher
the next period
at once
at clean up time
never
All floors, aisles, and passageways should be kept clear of
students and teachers
laboratory equipment only
laboratory equpiment and chemicals
chemicals only
If you see a fire in an apparatus assembly or a burning liquid, such as alcohol, it is best to put it out with
the fire blanket
your coat
water from the sink
the ABC fire extinguisher
To put out a fire on a person's clothing, use
the fire blanket
a nearby chemical
water from the sink
the ABC fire extinguisher
The correct way to move about the classroom or laboratory is to
run
dance
walk
skip
Helping to clean up the classroom or laboratory is the job of
new students
each student
the custodian
the teacher
When you use laboratory equipment or chemicals, you should give the procedure all of your
interest
effort
attention
all of these
Chemicals, small parts, glassware, and stirring rods are NOT to be
used in the laboratory
put on the lab table
put in your mouth
taken out of boxes
To prevent accidents during laboratory activities with chemicals and equipment, you should
use shortcuts
skip the directions
follow your teacher's directions
have someone else complete the lab
Playing (as opposed to working) in the laboratory or bothering another person is
always against the rules
not dangerous
alright
encouraged
To be able to put out a fire quickly and safely, you should know
how to use a fire extinguisher
which fire extinguisher to use for each type of fire
where the fire extinguisher is located
all of these
If flammable liquids, such as alcohol, are spilled, you should first
let them dry up
tell the teacher
use a fire extinguisher
pour water on it
Before you touch an electrical switch, plug, or outlet
your hands must be dry
wash your hands
ask the custodian
ask the nurse
Eyeglasses do not provide as much protection as
a face shield
splash-proof goggles
safety glasses
all of these
Laboratory aprons, when provided, are for
the protection of you and your clothes
others to hang up
wiping your hands
when you are wearing your best clothes
Cabinet drawers and doors that are left open cause a hazard and should be
walked around
left alone
closed by you
closed by the custodian
If there is a fire in the laboratory, notify the teacher at once; then prepare to
evacuate the building or laboratory
open the widnows
remove flammable materials
clean up the laboratory
All chemicals should be stored in
tin cans
clear glass bottles
dark brown bottles
properly labeled containers
When preparing dilute solutions of an acid, carefully pour
the acid into the water
water into the acid
the acid into a container
both substances into the container at the same time
If acid gets on your skin or clothes, wash at once with
a strong acid
water
soap
a strong base
Small quantities of spilled acids can be made safe with
a strong acid
water
soap
a weak base
Small amounts of spilled bases can be neutralized and made safe with
a weak acid
water
soap
a strong base
You must wear approved eye protection while working in the laboratory
to improve your vision
so you won't need reading glasses later in life
the moment you walk into the classroom
whenever the lab instructions or teacher tell you to do so
Disturbing other students while they are working in the laboratory is
helpful
dangerous
poor manners
the quickest way to complete the lab
You should prepare for each laboratory activity by reading all instructions
after school
before you start to work on the lab
while you are working on the lab
next week
When measuring small amounts of liquids with using a pipette, draw the liquid into the tube by using
your thumbs
a mechanical pipette filler
your mouth
the palm of your hand
When heating substances in a test tube, be sure the open end of the tube points towards
yourself
your lab partner
no one
the teacher
After heating glass tubing to bend it, the soonest you may safely handle the tubing is
within 30 seconds
after school
after you are sure it is cool
the next day
To insert glass tubing into a rubbers topper, you should (after fire polishing and cooling)
lubricate with water or glycerin
twist carefully
use a towel for protection
all of these
To remove an electrical plug from its socket, you should
pull the plug itself
pull on the appliance
pull on the cord