Physics & Chemistry
The equation a = F/m represents:
A. Newton's second law of motion.
B. Einstein's third law of motion.
C. Edison's first law of motion.
D. Franklin's second law of motion.
A. Newton's second law of motion
What is the most common oxidizer in combustion processes?
A. Oxygen present in air
B. Oxygen released from water droplets being vaporized
C. Oxygen liberated from burning molecules
D. Oxygen created by the combustion process
A. Oxygen present in air
What is the upward, buoyant flow of hot air, soot, and other combustion products over a burning object?
A. Fire effluent
B. Thermal column
C. Fire plume
D. Heat signature
C. Fire plume
Which items would be found in a Class A fire?
A. Cooking oil and grease
B. Electrical equipment
C. Gasoline
D. Cloth and paper
D. Cloth and paper
Impaired mobility and reduced clarity of thinking are examples of which type of smoke exposure effects?
A. Chronic effects
B. Toxic effects
C. Postfire effects
D. Acute effects
D. Acute effects
How many meters are in 2 kilometers?
A. 5
B. 10
C. 200
D. 2000
D. 2000
Which type of ignition is represented by a person lighting a candle with a match?
A. Piloted
B. Nonpiloted
C. Thermal
D. Auto
A. Piloted
The luminous part of the fire plume is the:
A. spark.
B. flame.
C. ember.
D. soot.
B. Flame.
Which type of fire model user would be interested in data regarding a remodel of a historic commercial building?
A. Retrospective
B. Prospective
C. Performance based
D. Valuation based
B. Prospective
Based on laboratory studies with test animals, how is fire-generated CO toxic?
A. It is an irritant upon contact.
B. It is an asphyxiant.
C. It is a corrosive gas.
D. It is a hallucinogen.
B. It is ab asphyxiant.
Carbon, oxygen, and nitrogen are all examples of:
A. Electrons
B. Atoms
C. Elements
D. Protons
C. Elements
In what circumstance would a change in a mechanical system result in an equal energy and enthalpy change?
A. The change does not result in expansion or condensation.
B. The change does not result in expansion or compression.
C. The change results in expansion without compression.
D. The change results in compression without expansion.
B. The change does not result in expansion or compression.
When all the combustibles in a compartment are fully enveloped in flames, the fire is considered:
A. laminar.
B. turbulent.
C. propagating.
D. stationary.
D. stationary.
A city fire investigator is using computer modeling to determine the origin of an industrial warehouse fire. Which type of fire model user are they?
A. Valuation based
B. Predictive
C. Retrospective
D. Prospective
C. Retrospective
What molecule is formed when a CO molecule bonds to the hemoglobin in red blood cells?
A. Hydroxyhemoglobin
B. Carboxyhemoglobin
C. Hydrogen oxide
D. Carbon dioxide
B. Carboxyhemoglobin
Which of the following is diatomic?
A. O2
B. He3
C. H6
D. CH4
A. 02
How would an oxygen-depleted atmosphere affect the process of pyrolysis?
A. Pyrolysis would proceed at an increased rate.
B. Pyrolysis would proceed at a decreased rate.
C. Pyrolysis would begin to create oxygen.
D. Pyrolysis would cease progress.
B. Pyrolysis would proceed at a decreased rate.
The transition from local burning to almost simultaneous ignition of nearly all exposed combustibles in a space is known as:
A. flameover.
B. flashover.
C. backdraft.
D. flashpoint.
B. flashover.
What is the last step in the sequence of construction of a computer fire model?
A. Creation or adaptation of equations to represent the physics and chemistry
B. Specification of appropriate input data for each of the variables in the computer code
C. Verification that the computer code correctly represents the phenomena
D. Validation of the accuracy of the predictions of the computer code
D. Validation of the accuracy of the predictions of the computer code
What does Haber's rule state with regard to smoke toxicology?
A. For a given toxicologic effect, the product of the volume fraction and the exposure time is a constant.
B. For a given narcotic effect, the sum of the volume fraction and the exposure time is a constant.
C. For a given toxicologic effect, the product of the volume fraction and the exposure time is variable.
D. For a given narcotic effect, the product of the volume fraction and the exposure time is variable.
A. For a given toxicologic effect, the product of the volume fraction and the exposure time is a constant.
Which collection of particles contains the largest percentage of an atom's mass?
A. Electrons
B. Protons
C. Neutrons
D. Nucleus
D. Nucleus
The speed at which a flame moves through unburned gas is referred to as:
A. burning velocity.
B. rate of flame.
C. ignition velocity.
D. flame rate.
A. Burning Velocity
Which fire plume zone contains orange flames?
A. Zone 1
B. Zone 2
C. Zone 3
D. Zone 4
B. Zone 2
Which type of fire model predicts the outcome of an individual fire?
A. Historic model
B. Probabilistic model
C. Deterministic model
D. Validation model
C. Deterministic model
At what temperature range are residential sprinklers typically designed to actuate?
A. 100 ˚F to 175 ˚F
B. 135 ˚F to 170 ˚F
C. 200 ˚F to 250 ˚F
D. 300 ˚F to 350 ˚F
B. 135 ˚F to 170 ˚F