Multiple Choice Identify the letter of the choice that best
completes the statement or answers the question.
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1.
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To extinguish a laboratory fire, you should know
a. | how to operate a fire extinguisher. | c. | who is responsible for using the
extinguisher. | b. | where extinguishers are located. | d. | all of the
above. |
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2.
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Approved eye protection devices (like goggles) are used in the laboratory
a. | to avoid eye strain. | c. | to wear only if you don't have corrective
glasses. | b. | to improve your vision. | d. | to wear at all times when so instructed to by the science
teacher. |
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3.
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If a laboratory fire erupts, notify your teacher at once and then
a. | follow the science teacher's directions. | c. | throw water on the
fire. | b. | run for the fire extinguisher. | d. | open the
windows. |
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4.
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Acid dilutions, with few exceptions, should be done by
a. | lab assistants. | c. | science instructor. | b. | students. | d. | school
principal. |
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5.
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Flammable materials like alcohol should never be dispensed or used near
a. | an open door. | c. | another student. | b. | an open flame. | d. | a sink. |
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6.
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If you develop a headache or feel dizzy in the laboratory, you should
a. | take an aspirin. | c. | tell your neighbor. | b. | tell the science
instructor. | d. | grin and bear
it. |
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7.
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If you wear eye contact lenses in the science laboratory where chemicals are
used,
a. | take them out before starting the lab. | c. | advise your science teacher that
you wear contact lenses and await instruction. | b. | you don't have to wear protective
goggles. | d. | keep the
information to yourself. |
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8.
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Cleaning up after a lab is the responsibility of
a. | students leaving the laboratory. | c. | the science
teacher. | b. | students entering the laboratory. | d. | everyone. |
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9.
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You are aware that you have allergies. You should
a. | always wear gloves in the laboratory. | c. | let another student handle the
experiment. | b. | discuss the matter with your science teacher. | d. | say nothing to avoid
trouble. |
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10.
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Spilled acid can best be neutralized with
a. | paper towels. | c. | alcohol. | b. | water. | d. | sodium bicarbonate
solution (base). |
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11.
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You are heating a substance in a test tube. Always point the open end of
the tube
a. | towards yourself. | c. | towards another classmate. | b. | towards your lab
partner. | d. | towards no other
person. |
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12.
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You are heating a piece of glass in science lab and now need to pick it
up. You should
a. | use a roll of paper towels. | c. | wait until it
cools. | b. | use tongs.. | d. | pour cold water on it. |
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13.
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You have been injured in the laboratory (cut, burn, etc.). First and
foremost you should
a. | ask to see the school nurse. | c. | tell the science teacher at
once. | b. | see a doctor after school. | d. | tell the principal. |
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14.
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A spilled base can be made safe for clean up by neutralizing it first
with
a. | acetic acid solution. | c. | concentrated acid. | b. | water. | d. | alcohol. |
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15.
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Pipets are used to measure and dispense small amounts of liquids. You
should draw the liquid into the pipet by using
a. | your mouth. | c. | your finger. | b. | a rubber suction bulb. | d. | your thumb. |
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16.
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You want to place a piece of glass tubing into a rubber stopper after it
has been fire polished and cooled. This is best done by
a. | lubricating the tubing with water or glycerine. | d. | all of the
above. | b. | using a towel for protection. | e. | none of the above. | c. | twisting the tubing
and stopper carefully. |
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17.
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Eyeglasses provide as much protection as
a. | a face shield. | c. | splashproof chemical goggles. | b. | safety
glasses. | d. | none of the
above. |
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18.
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Before you touch an electrical outlet, electrical plug or electrical
switch
a. | ask the school custodian. | c. | your hands must be
dry. | b. | your hands must be clean. | d. | ask a fellow student. |
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19.
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You lab partner has spilled some alcohol at your station. What is the best
cleanup procedure?
a. | Let it evaporate. | d. | both B and C. | b. | Tell the science teacher. | e. | none of the above. | c. | Clean it up at
once. |
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20.
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Paper towels or rags with flammable liquids or solid chemicals on them must be
put in
a. | the nearest trash can. | c. | a wastepaper basket. | b. | a cardboard box. | d. | a designated chemical waste container with a
lid. |
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21.
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Long hair in the laboratory must be
a. | cut short. | c. | always neatly groomed. | b. | held away from the
experiment with one hand. | d. | kept entirely out of the way with a hair band, clips, a hairnet or other confining
device. |
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22.
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In any laboratory you should be cautious of
a. | loose clothing. | c. | flammable clothing. | b. | dangling jewelry. | d. | anything that would create an unsafe
environment. |
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23.
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The following footwear is best in the laboratory:
a. | sandals. | d. | shoes appropriate for the weather. | b. | closed toed
shoes. | e. | all of the
above. | c. | shoes that protect your whole foot. |
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24.
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Playing and goofing around (as opposed to working) in the laboratory is
a. | not permitted. | c. | not dangerous. | b. | encouraged. | d. | okay if you are working at the same
time. |
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25.
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Injuries and accidents may result from spills. Always clean them up
a. | when you have time. | c. | at the end of class. | b. | immediately. | d. | during clean up
time. |
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26.
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To put out a fire in a person's hair or clothing, you should use
a. | a fire blanket. | c. | a CO2 fire extinguisher. | b. | water from the
sink. | d. | anything you find
lying around in the class. |
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27.
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All laboratory floors, aisles and/or passageways should be kept clear of
a. | teachers and students. | c. | lab equipment only. | b. | lab equipment, chemicals and
debris. | d. | chemicals
only. |
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28.
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If a piece of equipment is not working properly, stop, turn it off, and
a. | tell the custodian. | c. | strike up a conversation with your best friend in the
class. | b. | tell your lab partner. | d. | let the science teacher know immediately. |
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29.
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If a weak acid is splashed on you or your clothing, notify the teacher and then
wash at once with
a. | hand sanitizer. | c. | a weak base followed by plenty of running
water. | b. | oil. | d. | plenty
of running water. |
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30.
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When you finish working with chemical, biological specimens, and other lab
substances, always
a. | treat you hand with skin lotion. | c. | wipe your hands on a
towel. | b. | wash your hands thoroughly with soap and water. | d. | wipe your hands on your
apron. |
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31.
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After handling any reptile you should
a. | wipe your hands on a towel. | c. | sit in your
seat. | b. | wash your hands with soap and water. | d. | wipe your hands on your
pants. |
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32.
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Horseplay in the science classroom is
a. | okay if you don't get caught. | c. | absolutely forbidden at all
times. | b. | not encouraged. | d. | okay as long as there are no labs set up. |
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33.
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For safety reasons, lab stools should be _______________ before you leave class
each day.
a. | placed on top of lab table | c. | left in the middle of the walk
way | b. | pushed under lab table | d. | turned upside-down |
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Problem
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34.
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On your test paper, draw a diagram of our science room and label the location of
the safety equipment properly. Hint: We discussed 12 safety items, name/identify at least 10.
Neatness counts!
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