TCFP Firefighter I/II Chapters 31-32 Test

________ identify(ies) the hazard as a liquid, solid, or gas. Select one: A. Chemical matter B. Physical matter C. Matter properties D. State of matter - Answer- D. State of matter __________ is one toxic chemical found in most smoke caused by fire. Select one: A. Cyanide B. Xenon C. Acetic acid D. Sodium - Answer- A. Cyanide What characteristic of a gas is quantified as its vapor density? Select one: A. Its tendency to dissipate in open air B. How much moisture it contains C. How thickly it boils D. Its weight relative to air - Answer- D. Its weight relative to air What does the letter C stand for in 4H MEDIC ANNA? Select one: A. Contain B. Cervical C. Carbon monoxide D. Casualties - Answer- C. Carbon monoxide What is the specific gravity of water? Select one: A. 7 B. 0 C. 1 D. 10 - Answer- C. 1 What is the vapor density of air? Select one: A. 1.7 B. 14.7 C. 1 D. 3.1 - Answer- C. 1 What quantity is the weight of a liquid as compared to an equal volume of water? Select one: A. Vapor density B. Atmospheric pressure C. Buoyancy D. Specific gravity - Answer- D. Specific gravity What term refers to the ability of a material to cause damage on contact to skin, eyes, or other body parts? Select one: A. Organicity B. Reactivity C. Corrosivity D. Volatility - Answer- C. Corrosivity Which of the following is a type of radiation? Select one: A. Theta B. Alpha C. Delta D. Omega - Answer- B. Alpha Which of the following pH values would indicate a strong acid? Select one: A. 7.0 B. 1.7 C. 4.3 D. 9.5 - Answer- B. 1.7 ________ describes an amount of vapor mixed with a volume of air. Select one: A. Flammable range B. Fuel/air mixture C. Vaporization D. Vapor density - Answer- A. Flammable range __________ refers to the process in which unstable atoms of an element decay to a different state and emit excess energy in the form of particles or waves. Select one: A. Molecular decomposition B. Covalence C. Electromagnetism D. Radioactivity - Answer- D. Radioactivity A change in the state of a material is known as a __________ change. Select one: A. property B. matter C. chemical D. physical - Answer- D. physical A person develops asbestosis after repeated exposures to asbestos over 20 years. This is an example of a(n) __________ health effect. Select one: A. acute B. chronic C. prolonged D. sensitized - Answer- B. chronic A responder has come in contact with a hazardous material by handling a tool that was used to stop a leak. This is an example of: Select one: A. exposure. B. infection. C. secondary contamination. D. contamination. - Answer- C. secondary contamination. Damage to a person's skin, resulting from exposure to sulfuric acid, is an example of a(n) __________ health effect. Select one: A. persistent B. acute C. chronic D. recurring - Answer- B. acute How does the vapor pressure of a liquid relate to its rate of evaporation? Select one: A. Vapor pressure and rate of evaporation are synonymous. B. The greater the vapor pressure, the faster a liquid will evaporate. C. The greater the vapor pressure, the slower a liquid will evaporate. D. There is no relationship between these two quantities. - Answer- B. The greater the vapor pressure, the faster a liquid will evaporate. How would a fuel/air mixture in which there is too much fuel be described? Select one: A. Too lean B. Saturated C. Condensed D. Too rich - Answer- D. Too rich The alteration of the molecular nature of a material is known as a __________ change. Select one: A. physical B. matter C. chemical D. property - Answer- C. chemical The LC50 applies to materials in the __________ state. Select one: A. liquid B. gaseous C. solid D. suspended - Answer- B. gaseous Under what circumstances are alpha particles the most harmful to the human body? Select one: A. When the emanating source is wet B. When the skin is wet C. When they are ingested or inhaled D. When the victim has no shielding other than clothing - Answer- C. When they are ingested or inhaled Vapor pressures are usually reported in references at an assumed standard temperature of 20°C. Approximately what temperature is that, in everyday terms? Select one: A. Right at the boiling point of water B. Room temperature C. Just above freezing D. Too hot to touch, but below boiling - Answer- B. Room temperature What does it mean if a substance's vapor density is 2.3? Select one: A. It has an extraordinarily high boiling point. B. It has a relatively high boiling point. C. It will float in air. D. It will sink in air. - Answer- D. It will sink in air. What is one of the most important aspects to consider when looking at the fire potential of a flammable liquid? Select one: A. Propagation rating B. Explosive range C. Flame spread rating D. Flammable range - Answer- D. Flammable range What is secondary contamination? Select one: A. Contamination with small amounts that do not cause harm B. A contaminated person or object contaminating someone else, such as a rescuer C. Contact with another benign substance D. Contamination with a Class II substance or radioactivity - Answer- B. A contaminated person or object contaminating someone else, such as a rescuer What is the boiling point of water? Select one: A. 112°C B. 112°F C. 212°F D. 212°C - Answer- C. 212°F What is the standard atmospheric pressure at sea level? Select one: A. 1 pound per square inch (psi) B. 14.7 psi C. 7.7 psi D. 12.8 psi - Answer- B. 14.7 psi What is the temperature at which a liquid fuel gives off sufficient vapor such that when an ignition source is present the vapors will ignite? Select one: A. Flammable range B. Ignition temperature C. Fire point D. Flash point - Answer- D. Flash point What is the temperature at which sustained combustion will occur? Select one: A. Flash point B. Fire point C. Ignition temperature D. Flammable range - Answer- B. Fire point What is the term for a catastrophic failure of a pressurized cylinder of liquid? Select one: A. PLUME B. CLOPE C. BLEVE D. BEDEL - Answer- C. BLEVE What is the term for the ability of a substance to dissolve in water? Select one: A. Water formulation B. Chemical solubility C. Water solubility D. Water corrosivity - Answer- C. Water solubility What is the term for the pressure exerted by the vapor of a liquid until the vapor and the liquid are in equilibrium? Select one: A. Vapor density B. Head pressure C. Head density D. Vapor pressure - Answer- D. Vapor pressure What is the term for the process by which people, animals, the environment, and equipment are subjected to contact with a hazardous material? Select one: A. Hazard B. Exposure C. Contamination D. Risk - Answer- B. Exposure What is used as a measurement of the corrosive strength of a substance? Select one: A. pH B. Sed rate C. Corrosivity index D. Partial pressure - Answer- A. pH What term describes the volume increase that occurs when a liquid material changes to a gas? Select one: A. Liquefaction B. Expansion ratio C. Vapor pressure D. Off-gassing - Answer- B. Expansion ratio What type of changes can chemicals undergo when subjected to outside influences, such as heat, cold, and pressure? Select one: A. Physical B. Spatial C. Thermoplastic D. Thermodynamic - Answer- A. Physical What will a liquid with a specific gravity of 0.7 do in water? Select one: A. Mix B. Float on top C. Sink to the bottom D. Dissolve - Answer- B. Float on top What will gasoline or diesel fuel do when water is applied? Select one: A. Sink to the bottom B. Float to the top C. Separate D. Mix - Answer- B. Float to the top When the letters LD or LC are followed by a number, what does that number indicate? Select one: A. The average permissible exposure limit B. The percentage of test subjects that will die when exposed to a specified amount C. The average short-term exposure limit D. The lethal amount for all subjects of a specific test group - Answer- B. The percentage of test subjects that will die when exposed to a specified amount Which is the most energetic type of radiation? Select one: A. Beta B. Alpha C. Gamma D. Photon - Answer- C. Gamma Which particle does not have an electrical charge? Select one: A. Electron B. Neutron C. Proton D. Photon - Answer- B. Neutron Which particle has a negative electrical charge? Select one: A. Electron B. Neutron C. Photon D. Proton - Answer- A. Electron Which particle has a positive charge? Select one: A. Neutron B. Electron C. Photon D. Proton - Answer- D. Proton Which statement about radiation is correct? Select one: A. Exposure to nonionizing radiation is very rare. B. Ionizing radiation adds electrons to unstable atoms. C. Nonionizing radiation causes chemical changes at the atomic level. D. Ionizing radiation is more dangerous than nonionizing radiation. - Answer- C. Nonionizing radiation causes chemical changes at the atomic level. Which term refers to the concentration of a gas or vapor in air that will burn if provided with a source of ignition? Select one: A. Combustible limit B. Flash point C. Flammable range D. Vaporization range - Answer- C. Flammable range Which type of radiation is emitted as pure electromagnetic energy? Select one: A. Gamma B. Neutron C. Beta D. Alpha - Answer- A. Gamma Which type of radiation is the most harmful to the human body? Select one: A. Omega B. Delta C. Beta D. Gamma - Answer- D. Gamma Are intermodal tanks pressurized or nonpressurized? Select one: A. Nonpressurized only B. They are neither pressurized nor nonpressurized. C. Pressurized only D. They can be either pressurized or nonpressurized. - Answer- D. They can be either pressurized or nonpressurized. Are intermodal tanks shipping or storage vehicles? Select one: A. They are neither shipping nor storage vehicles. B. They can be either shipping or storage vehicles. C. Storage D. Shipping - Answer- B. They can be either shipping or storage vehicles. How large must the capacity of a liquid storage container be to qualify as a bulk storage container? Select one: A. More than 499 gallons B. 2500 gallons or more C. 1000 gallons or more D. More than 119 gallons - Answer- D. More than 119 gallons What does the EVADE acronym address? Select one: A. Scene assessment B. Nerve agent poisoning C. Decontamination D. Secondary devices - Answer- D. Secondary devices What does the letter A stand for in the EVADE acronym? Select one: A. Assess the scene for likely locations of secondary devices B. Avoid touching anything that might conceal an explosive device C. Assume the presence of a secondary device at all scenes D. Assist victims cautiously - Answer- B. Avoid touching anything that might conceal an explosive device What does the letter D stand for in the EVADE acronym? Select one: A. Designate and enforce scene control zones B. Deny entry C. Dike, dam, dilute, and divert D. Do not become part of the problem - Answer- A. Designate and enforce scene control zones What is one type of intermodal tank designation? Select one: A. IM-101 B. Type 7 C. TXD-IM-3 D. U-Z751 - Answer- A. IM-101 What is the purpose of a secondary device? Select one: A. Act as backup in case of failure of the primary device B. Kill and injure emergency personnel C. Initiate detonation of the primary device D. Create misdirection or a diversion - Answer- B. Kill and injure emergency personnel What is the term for an engineered catch basin around a 5000-gallon liquid container that is designed to contain the product if the container fails? Select one: A. Moller wall B. Auxiliary diking C. Confinement barrier D. Secondary containment - Answer- D. Secondary containment Which of the following is a commonly used resource to determine the size of a vapor cloud? Select one: A. Preincident plan B. Specialized computer software C. Scientific functions-capable calculator D. GPS triangulation - Answer- B. Specialized computer software A __________ is bulk storage vessel, described as a portable plastic tank surrounded by a stainless steel web, that can hold a few hundred gallons. Select one: A. cistern B. magazine C. vault D. tote - Answer- D. tote A __________ team conducts a quick evaluation of the area to identify the number of people involved. Select one: A. rescue B. survey C. recon D. search - Answer- C. recon