Hazardous Materials: Chapter 3 - Properties & Effects

If the flash point of gasoline is -45°F, at what temperature would a flame near a pool of gasoline cause a flash fire? A. -40°F (-40°C) B. -50°F (-45.5°C) C. -51°F (-56.1°C) D. -47°F (-43.9°C)

A. -40°F (-40°C)

What is the boiling point of water at sea level? A. 212°F (100°C) B. 100°F (37.8°C) C. 312°F (155°C) D. 112°F (44.4°C)

A. 212°F (100°C)

Which of the following is a carcinogen found in most fire smoke? A. Soot B. Sugar C. Water vapor D. Carbon dioxide

A. Soot

When talking about toxic materials and hazards, the key concept is always: A. capability. B. volatility. C. water solubility. D. color.

A. capability.

By definition, an ion always has some: A. charge. B. antidote. C. color. D. density.

A. charge.

If you pour gasoline into a river, it will: A. float. B. evaporate. C. burn. D. sink.

A. float.

Vaporization of ethanol produces a: A. gas. B. plasma. C. solid. D. liquid.

A. gas.

Chemical and physical properties are ______ characteristics. A. measurable B. uncertain C. fungible D. qualitative

A. measurable

The chemical factor most responsible for corrosivity is: A. pH. B. boiling point. C. water solubility. D. vapor pressure.

A. pH.

A family member of a person hurt during a release of toxic gas has come to the cold zone of the scene. As the related subject is being moved out to an ambulance, the family member grabs the subject's watch. The family member has probably experienced: A. secondary contamination. B. confusion. C. smoke inhalation. D. a similar tragedy

A. secondary contamination.

Concentration refers to: A. the relative amount of a substance in a solvent. B. focus on an incident. C. the weight of a chemical present in a container. D. how many rescuers are present in the hot zone.

A. the relative amount of a substance in a solvent.

What is the specific gravity of water? A. 2.0 B. 1.0 C. 0.8 D. 1.5

B. 1.0

Which of the following is a flammable concentration of natural gas in ambient air? A. 16% B. 8% C. 30% D. 4%

B. 8%

To obtain chemical safety information by phone, in Canada, call the: A. Emergency Transportation System for the Chemical Industry, Mexico. B. Canadian Transport Emergency Centre. C. Chemical Transportation Emergency Center. D. Occupational Safety and Health Administration

B. Canadian Transport Emergency Centre.

If you open a cylinder of a gas with a vapor density of 1.2, where will the gas go? A. Middle of the column in the room B. Cylinder base C. Ceiling D. Near the nozzle

B. Cylinder base

Which of the following can be used to knock down clouds of toxic gas during an incident? A. Flames B. Fog streams from handlines C. Water from a fire hose D. Ice crystals

B. Fog streams from handlines

You If carbon disulfide is released near a pond, where will it end up? A. Mixed in the water column A. Mixed in the water column B. Pond bottom C. High in the atmosphere D. On the grass next to the pond

B. Pond bottom

If a heavy toxic gas were released into an area with varied topography, where would it end up? A. Raised roadway B. River valley C. Hilltop D. Mountain slope

B. River valley

A safety data sheet will include information on: A. brands available. B. accident release measures. C. purity. D. price.

B. accident release measures.

A flash fire is possible for a flammable liquid: A. above the upper exposure limit and below the lower exposure limit. B. between the upper exposure limit and the lower exposure limit. C. above the upper exposure limit if the liquid is a hydrocarbon. D. only below the lower exposure limit.

B. between the upper exposure limit and the lower exposure limit.

The lowest temperature at which a liquid can completely turn into a gas is its: A. flash point. B. boiling point. C. vapor pressure. D. atmospheric pressure.

B. boiling point.

If a toxic liquid escapes from a tanker truck, vaporizes, and spreads out evenly as it rises, it forms a: A. pool. B. cone. C. plume. D. cloud.

B. cone.

The driving force for the creation of toxic products of combustion is: A. concentration. B. heat. C. wind. D. vapor pressure.

B. heat.

Contamination of an individual at an event scene implies that the individual: A. caused the incident. B. may contaminate others. C. will die. D. did something unsafe.

B. may contaminate others.

When discussing toxic chemical solutions, strength and concentration are: A. the same thing. B. sometimes very different. C. legally defined terms. D. set by the Occupational Safety and Health Administration

B. sometimes very different.

A lethal dose is defined as: A. more than 1 kilogram released in a closed building. B. 5 times the normal clinical dose. C. the amount of chemical that kills a given number of test animals. D. enough to kill an average grown man.

C. the amount of chemical that kills a given number of test animals.

Above its ignition temperature, a flammable liquid will ignite: A. if oxygen is absent. B. from the bottom up. C. without the ignition source D. if stirred.

C. without the ignition source

What is the vapor density of propane? A. 1.0 B. 2.01 C. 0.83 D. 1.55

D. 1.55

Which of the following is strongly acidic pH? A. 7 B. 6 C. 11 D. 2

D. 2

Which of the following is not a type of stress that can cause a container to fail? A. Chemical B. Thermal C. Mechanical D. Biological

D. Biological

What is the flash point of water? A. 110ºF (43.3ºC) B. The same as for ethanol C. Half of its boiling point at a given atmospheric pressure D. It does not exist

D. It does not exist

A toxic gas has been released on the first floor of a three-story building. Its density is lower than that of the ambient air. Where will it most likely be found? A. Center of town B. Adjacent building C. Parking lot D. Second floor

D. Second floor

Which of the following is an example of a substance that reacts adversely with water? A. Gasoline B. Milk C. Vinegar D. Sulfuric Acid

D. Sulfuric Acid

For a liquid with a low flash pressure, which of the following is true of its vapor pressure? A. The vapor pressure is lower than the flash pressure. B. The vapor pressure is hard to predict. C. The vapor pressure becomes more variable with the ambient pressure. D. The vapor pressure is higher than the flash pressure.

D. The vapor pressure is higher than the flash pressure.

Injury due to radiation exposure can be mitigated by increasing: A. the time used for cleanup. B. the number of EMTs working. C. the concentration of the chemical emitting the radiation. D. distance from the source.

D. distance from the source.

Compared to acute health effects, chronic health effects of occur: A. despite the best efforts of physicians. B. with greater severity. C. in fewer people. D. over longer periods of time.

D. over longer periods of time.

How is pH determined in the field? A. By adding baking soda. B. Using taste C. By watching the reaction with gasoline D. pH paper

D. pH paper

Radiation always: A. found in hospital incidents. B. lethal. C. regulated by OSHA D. transmitted energy.

D. transmitted energy.