LAB SAFETY EXAM 1
85+ (2025-2026 A+ Graded) Exam-Style Questions | Verified Solutions | Complete Answer Key
Question 1
chemical hygiene plan
Correct!
The written document that outlines employee training, proper lab safety protocols, employee health
monitoring requirements, and names a Chemical Hygiene Officer is called a(n):
Question 2
true
Correct!
The flash point for a flammable substance is lower than the flashpoint of a combustible substance.
(T/F)
Question 3
false
Correct!
University labs are not subject to OSHA regulations. (T/F)
Question 4
false
Correct!
"The 10 Worst Lab Accidents" posted on Canvas highlighted a chemistry lab accident where nickel
hydrazine perchlorate exploded when it was mixed with water. (T/F)
, Question 5
true
Correct!
When a strong oxidizer (such as potassium permanganate) is mixed with an organic compound (such
as glycerin), it will start a fire. (T/F)
Question 6
exothermic
Correct!
As seen in the YouTube video, alkali metals, such as sodium and cesium, can react intensely with
water. These types of reactions are:
Question 7
true
Correct!
Pyrophoric materials can ignite when exposed to air. (T/F)
Question 8
her hair got caught in a lathe
Correct!
"The 10 Worst Lab Accidents" posted on Canvas highlighted an accident where a Physics student
working alone at night in a machine shop was killed when:
Question 9
general storage
Correct!
In the ChemAlert color coding system for storing chemicals, gray signifies:
, Question 10
oxygen
Correct!
A dust fire can occur when fine dust particles are exposed to:
Question 11
false
Correct!
OSHA stands for the Occupational Standards and Health Administration. (T/F)
Question 12
false
Correct!
Acids and bases are both classified as corrosives, so they can be stored together in a corrosion-proof
cabinet. (T/F)
Question 13
acetylene
Correct!
As seen in the posted YouTube video, when calcium carbide is mixed with water, a flammable gas is
produced. This gas is:
Question 14
hypocalcemia
Correct!
Hydrofluoric acid is commonly used in geology as a way to extract microscopic fossils from
sedimentary rock. The rock dissolves in the acid, leaving the acid-insoluble fossils behind. This can
cause burns if spilled on the skin. Unless gluconate gel is applied to these burns, the high dose of
fluoride could cause:
85+ (2025-2026 A+ Graded) Exam-Style Questions | Verified Solutions | Complete Answer Key
Question 1
chemical hygiene plan
Correct!
The written document that outlines employee training, proper lab safety protocols, employee health
monitoring requirements, and names a Chemical Hygiene Officer is called a(n):
Question 2
true
Correct!
The flash point for a flammable substance is lower than the flashpoint of a combustible substance.
(T/F)
Question 3
false
Correct!
University labs are not subject to OSHA regulations. (T/F)
Question 4
false
Correct!
"The 10 Worst Lab Accidents" posted on Canvas highlighted a chemistry lab accident where nickel
hydrazine perchlorate exploded when it was mixed with water. (T/F)
, Question 5
true
Correct!
When a strong oxidizer (such as potassium permanganate) is mixed with an organic compound (such
as glycerin), it will start a fire. (T/F)
Question 6
exothermic
Correct!
As seen in the YouTube video, alkali metals, such as sodium and cesium, can react intensely with
water. These types of reactions are:
Question 7
true
Correct!
Pyrophoric materials can ignite when exposed to air. (T/F)
Question 8
her hair got caught in a lathe
Correct!
"The 10 Worst Lab Accidents" posted on Canvas highlighted an accident where a Physics student
working alone at night in a machine shop was killed when:
Question 9
general storage
Correct!
In the ChemAlert color coding system for storing chemicals, gray signifies:
, Question 10
oxygen
Correct!
A dust fire can occur when fine dust particles are exposed to:
Question 11
false
Correct!
OSHA stands for the Occupational Standards and Health Administration. (T/F)
Question 12
false
Correct!
Acids and bases are both classified as corrosives, so they can be stored together in a corrosion-proof
cabinet. (T/F)
Question 13
acetylene
Correct!
As seen in the posted YouTube video, when calcium carbide is mixed with water, a flammable gas is
produced. This gas is:
Question 14
hypocalcemia
Correct!
Hydrofluoric acid is commonly used in geology as a way to extract microscopic fossils from
sedimentary rock. The rock dissolves in the acid, leaving the acid-insoluble fossils behind. This can
cause burns if spilled on the skin. Unless gluconate gel is applied to these burns, the high dose of
fluoride could cause:
