1.
Fire is a very rapid chemical reaction.
Correct Answer
A. True
Explanation
Fire is a very rapid chemical reaction because it involves the rapid combination of oxygen with a fuel source, resulting in the release of heat, light, and various gases. This reaction is known as combustion and occurs when the fuel source reaches its ignition temperature and is exposed to an adequate supply of oxygen. The rapid release of energy during combustion is what causes the flames and heat associated with fire.
2.
Check three things that need to exist in order to have fire.
Correct Answer(s)
A. Heat
B. Fuel
C. Oxygen
Explanation
Fire requires three things to exist: heat, fuel, and oxygen. Heat is necessary to initiate and sustain the chemical reactions that produce fire. Fuel refers to any combustible material that can be burned, such as wood, gasoline, or paper. Oxygen is needed to support the combustion process by providing the necessary element for the fire to burn. Without any of these three components, fire cannot occur. Photosynthesis, on the other hand, is a process in which plants convert sunlight into energy and is not directly related to fire.
3.
What is oxygens role in making a fire?
Correct Answer
A. It sustains combustion
Explanation
Oxygen is essential for combustion to occur. It acts as a reactant and combines with the fuel in the presence of heat, resulting in the release of energy in the form of heat and light. Without oxygen, the fire cannot sustain itself and will eventually go out.
4.
What is Heats role in making a fire?
Correct Answer
A. It raises the material temperature so it will ignite
Explanation
Heat plays a crucial role in making a fire by raising the material's temperature to the point where it can ignite. When heat is applied to a material, it increases the kinetic energy of its molecules, causing them to move faster and collide with greater force. This increased molecular activity leads to a rise in temperature, eventually reaching the ignition point of the material. Once the material ignites, the heat generated from the initial combustion sustains the fire, allowing it to continue burning.
5.
What is fuels role in making a fire?
Correct Answer
A. It is the combustible material that burns
Explanation
Fuel plays a crucial role in making a fire because it is the combustible material that burns. Without fuel, there would be no material to ignite and sustain the fire. Fuel provides the necessary energy and heat for the fire to continue burning. It can be in the form of wood, gas, oil, or any other flammable substance that can undergo combustion.
6.
1-A:10-BC represents the classification of the pictured exstinguisher .
Correct Answer
A. True
Explanation
The statement "1-A:10-BC represents the classification of the pictured extinguisher" is true. The classification system for fire extinguishers uses letters and numbers to indicate the type and effectiveness of the extinguisher. In this case, "1-A" represents the extinguisher's ability to combat ordinary combustibles, such as wood or paper, while "10-BC" indicates its effectiveness against flammable liquids and electrical fires. Therefore, the given statement is correct.
7.
The letters A, B, and C represent what ?
Correct Answer
C. Types of fire the extinguisher will put out
Explanation
The letters A, B, and C on a fire extinguisher represent the types of fire that the extinguisher is designed to put out. A represents fires involving ordinary combustible materials such as wood or paper, B represents fires involving flammable liquids such as gasoline or oil, and C represents fires involving electrical equipment. By indicating the types of fire, the letters help users select the appropriate extinguisher for the specific fire hazard they are facing.
8.
The energy that causes things to become warmer.
Correct Answer
Heat, Fuel, Oxygen
Explanation
Heat, fuel, and oxygen are the three components necessary for a fire to occur. Heat is the energy that raises the temperature of the fuel, causing it to reach its ignition point. Fuel provides the material that can be burned, releasing energy in the form of heat. Oxygen is required for the combustion process, as it reacts with the fuel to produce heat and various byproducts. Without any of these three elements, a fire cannot be sustained, and the energy required to make things warmer would not be present.
9.
Material (such as coal, oil, or gas) is burned to produce heat or power.
Correct Answer
Fuel, Heat, Oxygen
Explanation
When material such as coal, oil, or gas is burned, it undergoes a chemical reaction with oxygen in the presence of heat. This process is known as combustion and it releases energy in the form of heat or power. The material being burned is the fuel, which provides the necessary energy for the reaction. Heat is required to initiate and sustain the combustion process, while oxygen acts as the oxidizing agent that reacts with the fuel to produce the desired energy output. Therefore, the correct answer includes fuel, heat, and oxygen as essential components in the process of burning material to produce heat or power.
10.
A chemical that is found in the air that has no color, taste, or smell, and that is necessary for life.
Correct Answer
Oxygen, Heat, Fuel
Explanation
Oxygen is a chemical that is found in the air and is necessary for life. It has no color, taste, or smell. Heat and fuel are not chemicals found in the air and do not meet the criteria of being necessary for life. Therefore, the correct answer is Oxygen.
11.
The act or process of putting people or things into groups based on ways that they are alike.
Correct Answer
Classification, Flammable, Combustable
Explanation
This answer includes three words: classification, flammable, and combustible. Classification refers to the act or process of putting people or things into groups based on similarities. Flammable and combustible are both terms used to describe materials that are easily ignited and capable of burning. These words are related to the concept of classification as they are used to categorize materials based on their potential to catch fire.
12.
Capable of being set on fire and of burning quickly.
Correct Answer
Flammable, Classification, Combustable
Explanation
The correct answer is "Flammable, Classification, Combustible." These terms are all related to the ability of a substance to catch fire and burn quickly. "Flammable" refers to the ease with which a substance can ignite and sustain a fire. "Classification" is the categorization of substances based on their flammability properties. "Combustible" describes materials that have the potential to catch fire and burn. These terms are often used interchangeably to describe substances that are capable of being set on fire and burning rapidly.
13.
Able to be burned easily.
Correct Answer
Combustible, Classification, Flammable
Explanation
The given correct answer options all relate to the ability to burn easily. Combustible refers to materials that are capable of catching fire and burning, while flammable refers to substances that are easily ignited and can rapidly spread flames. Classification is a term used to categorize materials based on their flammability or combustibility. Therefore, all three options are related to the ability of a substance to burn easily.
14.
What type of fire does this letter represent?
Correct Answer
A. Combustible
Explanation
The correct answer is "Combustible." This letter represents a type of fire that involves combustible materials. Combustible fires occur when materials such as wood, paper, or fabric ignite and burn. These fires can spread quickly and are often fueled by the materials themselves. It is important to handle combustible materials with caution and to have proper fire safety measures in place to prevent and extinguish these types of fires.
15.
What type of fire does this letter represent?
Correct Answer
B. Flammable Liquids
Explanation
The correct answer is "Flammable Liquids." This letter represents a fire caused by flammable liquids. Flammable liquids are substances that can easily catch fire and ignite at or below room temperature. They have a low flash point and can produce vapors that can easily ignite when exposed to an ignition source. This type of fire can be particularly dangerous as it can spread quickly and is often difficult to extinguish.
16.
What type of fire does this letter represent?
Correct Answer
C. Electrical Equipment
Explanation
This letter represents the type of fire that involves electrical equipment. Electrical fires occur when there is a fault in the electrical system, causing sparks or overheating. These fires should not be extinguished with water, as it can conduct electricity and make the situation worse. Instead, a fire extinguisher specifically designed for electrical fires, such as a CO2 extinguisher, should be used.
17.
What is this label telling you?
Correct Answer
A. Its good for fires that contain ordinary combustible materials
Explanation
This label is indicating that the fire extinguisher is suitable for fires that involve ordinary combustible materials, such as wood, paper, and cloth. It implies that it may not be effective for fires involving other types of materials, such as flammable liquids or electrical fires.
18.
What type of fire does this label represent?
Correct Answer
C. Electrical Equipment
Explanation
This label represents a fire that is specifically related to electrical equipment. Electrical fires can occur when there is a fault in the wiring or when electrical appliances overheat. It is important to be aware of this type of fire and use the appropriate fire extinguisher or suppression method to safely extinguish it.
19.
What type of fire does this label represent?
Correct Answer
E. Flammable Liquids
Explanation
This label represents the type of fire caused by flammable liquids. Flammable liquids are substances that can easily catch fire and ignite at or below room temperature. Examples of flammable liquids include gasoline, alcohol, and paint thinner. Fires caused by flammable liquids require special extinguishing agents, such as foam or dry chemical, to effectively put out the flames.
20.
What type of fire does this label represent?
Correct Answer
D. Kitchen Fires
Explanation
The label represents kitchen fires. This type of fire typically occurs in a kitchen setting and involves the ignition of cooking oils, fats, or other flammable substances commonly found in a kitchen. Kitchen fires can be caused by overheating, unattended cooking, or grease buildup. It is important to have the appropriate fire extinguisher and knowledge of how to safely extinguish a kitchen fire to prevent it from spreading and causing further damage.
21.
What type of fire does this label represent?
Correct Answer
B. Combustible Metals
Explanation
This label represents a fire involving combustible metals. Combustible metals are metals that can ignite and burn, often with intense heat and the release of flammable gases. These types of fires require special extinguishing agents and techniques, as water and traditional fire extinguishers may not be effective.
22.
What type of fire does this label represent?
Correct Answer
A. Ordinary Materials
Explanation
This label represents a fire involving ordinary materials. Ordinary materials refer to common combustible substances such as wood, paper, cloth, and plastics that can easily catch fire and sustain combustion. This type of fire is generally the most common and can be extinguished using water, foam, or dry chemical fire extinguishers.
23.
When using a fire extinguisher what does PASS mean?
Correct Answer
E. All the above
Explanation
PASS is an acronym that stands for Pull the pin, Aim at the base of the fire, Squeeze the lever, and Sweep from side to side. This acronym is a helpful reminder of the steps to follow when using a fire extinguisher. Pulling the pin allows the extinguisher to be activated, aiming at the base of the fire targets the source of the flames, squeezing the lever releases the extinguishing agent, and sweeping from side to side helps to cover the entire fire area. Therefore, all of the above options are correct when it comes to using a fire extinguisher.