Chem 1LD Safety Practical Questions With Complete
Solutions
a) Acute Toxicity
b) Chronic Toxicity
c) LC50
d) LD50
e) Toxicant
f) Toxicity
g) Toxicology
h) Toxin
answer bank:
ability of a chemical to do damage with a single dose
ability of a chemical to damage an organ
toxic substance made by a plant, fungi, animal, or bacterium
lethal concentration that kills 50% of the population
ability of a chemical to do damage after multiple doses
chemical producing toxic effects
lethal dose that kills 50% of the population
study of adverse chemical effects Correct Answers a) ability of
a chemical to do damage with a single dose
b) ability of a chemical to do damage after multiple doses
c) lethal concentration that kills 50%
d) lethal dose that kills 50%
e) chemical producing toxic effects
f) ability of a chemical to damage an organ
g) study of adverse chemical effects
h) toxic substance made by a plant, fungi, animal, or bacterium
a) Sensitizer
,b) Asphyxiant
c) Teratogen
d) Carcinogen
e) Organ toxicant
f) Neurotoxin
g) Poison
answer bank:
acrylonitrile
carbon monoxide
formaldehyde
cyanide
benzene
ethanol
acetone Correct Answers a) formaldehyde
b) carbon monoxide
c) acrylonitrile
d) benzene
e) ethanol
f) acetone
g) cyanide
Both evaporation of a liquid and sublimation of a solid are
sources of gaseous compounds which can be inhaled. If you can
smell a chemical, you are inhaling that chemical. The "smell" of
a perfume, car exhaust, or flowers are all a result of inhalation.
So obviously, not all chemicals you smell are dangerous - but
many are. Match the terms connected to gases to their
definitions.
, PEL:
immediately dangerous to life and health
gas concentration that 50% of the population can detect
occupational exposure limits
decreased sensitivity to odor over time
permissible exposure limit
odor threshold:
immediately dangerous to life and health
gas concentration that 50% of the population can detect
occupational exposure limits
decreased sensitivity to odor over time
permissible exposure limit Correct Answers PEL - permissible
exposure limit
odor threshold - gas concentration that 50% of the population
can detect
c) Breakthrough time
time for the first appearance of a chemical on the other side of
the glove
speed at which a chemical appears on the other side of the glove
ability of a chemical to penetrate the glove material through
small pores
destructive change in the glove material
Match the term describing glove safety to the description.
d) Rate of transfer
time for the first appearance of a chemical on the other side of
the glove
speed at which a chemical appears on the other side of the glove
Solutions
a) Acute Toxicity
b) Chronic Toxicity
c) LC50
d) LD50
e) Toxicant
f) Toxicity
g) Toxicology
h) Toxin
answer bank:
ability of a chemical to do damage with a single dose
ability of a chemical to damage an organ
toxic substance made by a plant, fungi, animal, or bacterium
lethal concentration that kills 50% of the population
ability of a chemical to do damage after multiple doses
chemical producing toxic effects
lethal dose that kills 50% of the population
study of adverse chemical effects Correct Answers a) ability of
a chemical to do damage with a single dose
b) ability of a chemical to do damage after multiple doses
c) lethal concentration that kills 50%
d) lethal dose that kills 50%
e) chemical producing toxic effects
f) ability of a chemical to damage an organ
g) study of adverse chemical effects
h) toxic substance made by a plant, fungi, animal, or bacterium
a) Sensitizer
,b) Asphyxiant
c) Teratogen
d) Carcinogen
e) Organ toxicant
f) Neurotoxin
g) Poison
answer bank:
acrylonitrile
carbon monoxide
formaldehyde
cyanide
benzene
ethanol
acetone Correct Answers a) formaldehyde
b) carbon monoxide
c) acrylonitrile
d) benzene
e) ethanol
f) acetone
g) cyanide
Both evaporation of a liquid and sublimation of a solid are
sources of gaseous compounds which can be inhaled. If you can
smell a chemical, you are inhaling that chemical. The "smell" of
a perfume, car exhaust, or flowers are all a result of inhalation.
So obviously, not all chemicals you smell are dangerous - but
many are. Match the terms connected to gases to their
definitions.
, PEL:
immediately dangerous to life and health
gas concentration that 50% of the population can detect
occupational exposure limits
decreased sensitivity to odor over time
permissible exposure limit
odor threshold:
immediately dangerous to life and health
gas concentration that 50% of the population can detect
occupational exposure limits
decreased sensitivity to odor over time
permissible exposure limit Correct Answers PEL - permissible
exposure limit
odor threshold - gas concentration that 50% of the population
can detect
c) Breakthrough time
time for the first appearance of a chemical on the other side of
the glove
speed at which a chemical appears on the other side of the glove
ability of a chemical to penetrate the glove material through
small pores
destructive change in the glove material
Match the term describing glove safety to the description.
d) Rate of transfer
time for the first appearance of a chemical on the other side of
the glove
speed at which a chemical appears on the other side of the glove
