Chapter 2 Questions Flashcards
Anhydrous, hydrophobic, and hydrophilic are all ways to describe material and its relationships to: A. Acids and bases B. Water C. Heat D. Atmospheric air
B water
What is the term used to describe a material that readily changes to gas? A. Condensate B. Volatile C. Reactive D. Vaporized
B. Volatile
Vapor pressure increases with: A. Volume B. Flammable range C. Release rates D. Temperature
D. Temperature
What is a measure of how heavy a unit volume of a substance is or the mass of a known volume? A. Density B. Odor C. Viscosity D. Appearance
A. Density
Which physical state of matter is generally the least mobile? A. Solids B. Vapors C. Liquids D. Gases
A. Solids
Cryogenic liquids are:
A. Reactive above 32F (0C)
B. Only transported at night
C. Liquefied gases at very low temperatures
D. Asphyxiants with very low expansion ratios when released
C. Liquefied gases at very low temperatures
Emergency responders will typically be at the greatest risk when dealing with a: A. Toxin B. Gas C. Liquid D. Solid
B. Gas
Increasing heat in an object will increase the: A. Molecular weight of the object B. Polarity of the object C. Movement of molecules in the object D. Pressure within the object
C. Movement of molecules in the object
When measuring vapor density, the density of air is equal to: A. 29 B. 0 C. 1 D. 14.7
C. 1
Which atmospheres are particularly dangerous?
A. Atmospheres with high vapor pressure
B. Atmospheres with great molecular weight
C. Atmospheres with freezing temperatures
D. Atmospheres within the flammable range
D. Atmospheres within the flammable range
Once a critical point is reached:
A. Responders must shelter-in-place
B. The atmosphere becomes unbreathable
C. The chemical reaction can not be stopped until he reaction is completed
D. The chemical reaction stops, and the danger has passed
C. The chemical reaction can not be stopped until the reaction is completed
Which of the following does NOT influence the boiling point of a liquid such as water? A. A water soluble substance B. Elevation C. Pressure D. Volume
D. Volume
Which item will act like a gas and be very mobile? A. Compressed solids B. Pressurized liquids C. Aerosol D. Condensate
C. Aerosol
A description of the appearance of a material will normally appear on a: A. Container B. Placard C. Label D. Safety data sheets
D. safety data sheets
How does temperature. Affect evaporation rate?
A. The lower the temperature, the faster the evaporation rate
B. The temperature has no impact on the evaporation rate
C. The higher the temperature, the slower the evaporation rate
D. The higher the temperature, the faster the evaporation rate
D. The higher the temperature, the faster the evaporation rate