Exam 5 2023 Flashcards
Question 1:
Which 10-41 code is incorrect?
A: Code 1: Occupied Structure or Vehicle- A structure (commercial, residential, public), or vehicle (car, bus or train) which is occupied at the time of the fire. This also includes a vacant apartment in an occupied building, or a store with a dwelling above, or an occupied detached garage, shed or similar structure.
B: Code 2: Unoccupied Structure- A structure (commercial, residential, public), normally occupied which is unoccupied at the time of the fire.
C: Code 3: Unoccupied Vehicle- A vehicle, (car, bus or train) with or without plates, which is unoccupied at the time of the fire.
D: Code 4: Vacant Structure, or Structures always intended for Dwelling Purposes. Examples include, but are not limited to the following: Vacant buildings, buildings under construction/demolition, detached garages, sheds or similar structures
A: Code 1: Occupied Structure or Vehicle- A structure (commercial, residential, public), or vehicle (car, bus or train) which is occupied at the time of the fire. This also includes a vacant apartment in an occupied building, or a store with a dwelling above, or an occupied detached garage, shed or similar structure.
B: Code 2: Unoccupied Structure- A structure (commercial, residential, public), normally occupied which is unoccupied at the time of the fire.
C: Code 3: Unoccupied Vehicle- A vehicle, (car, bus or train) with or without plates, which is unoccupied at the time of the fire.
D:✔Code 4: Vacant Structure, or Structures always intended for Dwelling Purposes. Examples include, but are not limited to the following: Vacant buildings, buildings under construction/demolition, detached garages, sheds or similar structures
Explanation:
Code 4: Vacant Structure, or Structures NOT intended for Dwelling Purposes. Examples include, but are not limited to the following: Vacant buildings, buildings under construction/demolition, detached garages, sheds or similar structures
Question 2:
The new FDNY manual Fire Dynamics writes about the Chemistry of Fire. Which statement is incorrect regarding this bulletin?
A: The term “fire” refers to how something burns. Fire is a rapid oxidation process, which is a chemical reaction resulting in the evolution of light and heat in varying intensities.
B: Fire and combustion are similar conditions; however, combustion can occur without fire.
C: Combustion is a chemical process of oxidation that occurs at a rate slow enough to produce heat and usually light in the form of either a glow or flame.
D: There are two modes of combustion, non-flaming and flaming. Non-flaming combustion occurs more slowly and at a lower temperature producing a smoldering glow in the material’s surface without flames.
Explanation:
Training Bulletins- Fire Dynamics ch 1 sec 2.1-2.3
Combustion is a chemical process of oxidation that occurs at a rate FAST enough to produce heat and usually light in the form of either a glow or flame.
Flaming Combustion: Flaming combustion is commonly referred to as fire because it produces a visible flame above the material’s surface.
A: The term “fire” refers to how something burns. Fire is a rapid oxidation process, which is a chemical reaction resulting in the evolution of light and heat in varying intensities.
B: Fire and combustion are similar conditions; however, combustion can occur without fire.
C:✔Combustion is a chemical process of oxidation that occurs at a rate slow enough to produce heat and usually light in the form of either a glow or flame.
D: There are two modes of combustion, non-flaming and flaming. Non-flaming combustion occurs more slowly and at a lower temperature producing a smoldering glow in the material’s surface without flames.
Explanation:
Training Bulletins- Fire Dynamics ch 1 sec 2.1-2.3
Combustion is a chemical process of oxidation that occurs at a rate FAST enough to produce heat and usually light in the form of either a glow or flame.
Flaming Combustion: Flaming combustion is commonly referred to as fire because it produces a visible flame above the material’s surface.
Question 3:
Research into fire behavior has determined that an uninhibited chemical chain reaction must also be present in addition to the other elements of the fire triangle (fuel, oxygen & heat) in order for flames to occur. Therefore, the _______ was created to explain flaming combustion. Each element of the fire tetrahedron; fuel, oxygen, heat & uninhibited chemical chain reaction must be present for flaming combustion. Removing any element of the tetrahedron interrupts the chemical chain reaction and stops flaming combustion.
A: fire triangle
B: fire tetrahedron
C: fire dynamic
D: fire flamer
A: fire triangle
B:✔fire tetrahedron
C: fire dynamic
D: fire flamer
Explanation:
Fire Dynamics Ch 1 sec 2.4.1
Fire Triangle: The oldest and simplest model, the fire triangle, illustrates the three elements necessary for combustion to occur: fuel, oxygen and heat. Remove any one of these elements and combustion will cease. The fire triangle best illustrates the elements required for non-flaming combustion; when burning is localized on or near the fuel’s surface where it is in contact with oxygen. Examples of non-flaming combustion include burning charcoal briquettes or smoldering wood or fabric.
Question 4:
Fuel may be found in any of three states of matter; solid, liquid, or gas. Only gases burn. In order for a solid or liquid to burn, they must be converted into a gas. Solids are converted into gas by _____ and Liquids are converted to a gas by _____.
A: pyrolysis, vaporization
B: permeation, vaporization
C: pyrolysis, evaporation
D: permeation, evaporation
A:✔pyrolysis, vaporization
B: permeation, vaporization
C: pyrolysis, evaporation
D: permeation, evaporation
Explanation:
Fire Dynamics ch 1 sec 2.5.1
Question 5:
Oxygen in the air is the primary oxidizing agent in most fires. Normally, air consists of 20.8% oxygen. At normal ambient temperatures, materials can ignite and burn at oxygen concentrations as low as ________.
A: 18 percent.
B: 17 percent.
C: 16 percent.
D: 15 percent.
A: 18 percent.
B: 17 percent.
C: 16 percent.
D:✔15 percent.
Explanation:
Fire dynamics ch 1 sec 2.6.1
Question 6:
A number of natural laws of physics are involved in the transmission of heat. One is called the ________; it specifies that heat always flows from a hot substance to a cold substance. The colder of two objects in contact with each other will absorb heat until both objects are at the same temperature.
A: Law of Averages
B: Law of Heat Averages
C: Law of Average Flow
D: Law of Heat Flow
A: Law of Averages
B: Law of Heat Averages
C: Law of Average Flow
D:✔Law of Heat Flow
Explanation:
Fire Dynamics Ch 1 sec 2.7.1
Question 7:
After memorizing this photo for four minutes, click yes and answer the following 9 questions.
A: Yes
Question 8:
How many people are in the picture?
A: 3
B: 4
C: 5
D: 6
A: 3
B: 4
C:✔5
D: 6
Question 9:
How many people are wearing sneakers?
A: 1
B: 2
C: 3
D: 4
Question 9:
How many people are wearing sneakers?
A: 1
B:✔2
C: 3
D: 4
Question 10:
Which is incorrect regarding this photo?
A: The gentleman wearing the green sweater has a collared shirt on underneath
B: Two of the five people are wearing collared clothing
C: One of the five books is yellow
D: Two women have their legs crossed
A: The gentleman wearing the green sweater has a collared shirt on underneath
B:✔Two of the five people are wearing collared clothing
C: One of the five books is yellow
D: Two women have their legs crossed
Explanation:
Four of the five people are wearing collared clothing
Question 11:
How many people are wearing glasses?
A: 1
B: 2
C: 3
D: 4
E: All of them
A: 1
B:✔2
C: 3
D: 4
E: All of them
Question 12:
True or False… Every book is a different color
A: True
B: False
A:✔True
B: False
Question 13:
What are the people sitting on?
A: Colorful sofa
B: Bland sofa
C: Stools
D: Chairs
A: Colorful sofa
B: Bland sofa
C:✔Stools
D: Chairs
Question 14:
Which is correctly stated?
A: The only green color in the entire picture is a sweater
B: The only person wearing open toed shoes is the girl to the right
C: The only person wearing red pants is the one reading a red book
D: Only one person is wearing a hat.
A:✔The only green color in the entire picture is a sweater
B: The only person wearing open toed shoes is the girl to the right
C: The only person wearing red pants is the one reading a red book
D: Only one person is wearing a hat.
Explanation:
B. The only person wearing open toed shoes is the girl in the middle
C. He’s reading a purple book
D. No one is wearing a hat.
Question 15:
Which color book is not found in this photo?
A: Red
B: Yellow
C: Blue
D: Purple
E: Orange
A: Red
B: Yellow
C: Blue
D: Purple
E:✔Orange