Fire Inspection & Code Enforcement Study Quiz 10

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  • 1/100 Questions

    Class B fires involve fuels such as:

    • Greases or flammable/combustible liquids
    • Energized electrical equipment
    • Combustible metals
    • Ordinary combustibles
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Study Guide Quiz Questions for fire inspections & code enforcement

Fire Inspection & Code Enforcement Study Quiz 10 - Quiz

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  • 2. 

    The objective of a residential inspection program is to:

    • Attain proper life safety conditions

    • Prevent fires

    • Educate the property owner and occupants about fire safety

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The objective of a residential inspection program is to attain proper life safety conditions, prevent fires, and educate the property owner and occupants about fire safety. By achieving these goals, the program aims to ensure the safety and well-being of residents in residential buildings.

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  • 3. 

    A stored-pressure water extinguisher would be chosen to attack a _____ fire.

    • Class A

    • Class B

    • Class C

    • Class D

    Correct Answer
    A. Class A
    Explanation
    A stored-pressure water extinguisher would be chosen to attack a Class A fire. Class A fires involve ordinary combustible materials such as wood, paper, and cloth. Water is an effective agent for extinguishing these types of fires as it cools the fuel and removes the heat necessary for combustion. Stored-pressure water extinguishers are designed to discharge a stream of water onto the fire, helping to suppress and extinguish it. They are commonly used in residential and commercial settings where Class A fires are more likely to occur.

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  • 4. 

    Condition of impurity resulting from a mixture or contact with a foreign substance.

    • Creosote

    • Contamination

    • Decay

    • Smolder

    Correct Answer
    A. Contamination
    Explanation
    Contamination refers to the condition of impurity that occurs when a substance is mixed with or comes into contact with a foreign or unwanted substance. It implies that the substance has been polluted or tainted by the presence of something undesirable. In the context of the given options, creosote, decay, and smolder do not specifically imply the presence of impurity or foreign substance, whereas contamination directly relates to the condition described.

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  • 5. 

    According to NFPA 101, Life Safety Code, buildings used as a store, market, and other rooms, buildings, or structures used to display and sell merchandise are classified as a/an:

    • Mercantile occupancy

    • Business occupancy

    • Storage occupancy

    • Place of assembly

    • Occupancy of unusual structures

    Correct Answer
    A. Mercantile occupancy
    Explanation
    According to NFPA 101, buildings used to display and sell merchandise are classified as mercantile occupancy. This classification is used for buildings that are primarily engaged in the retail sale of goods. It includes stores, markets, and other rooms or structures where merchandise is displayed and sold. This classification helps to ensure that these buildings meet specific safety requirements to protect occupants and prevent fire hazards associated with the storage and sale of merchandise.

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  • 6. 

    The purpose of school fire exit drills is to:

    • Increase speek in evacuating all children

    • Instill discipline and order

    • Ensure that all exits are being used and are not locked

    • Ensure orderly exit of all personnel under controlled supervision

    Correct Answer
    A. Ensure orderly exit of all personnel under controlled supervision
    Explanation
    The purpose of school fire exit drills is to ensure that all personnel are able to exit the building in an organized and controlled manner. This helps to prevent chaos and panic during an emergency situation and ensures that everyone can safely evacuate the premises. By practicing these drills, individuals become familiar with the evacuation procedures and know how to exit the building efficiently. This also allows for any issues with exits, such as locked doors, to be identified and addressed beforehand, further ensuring the safety of everyone involved.

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  • 7. 

    When referring to the L.E.L. of a flammable or combustible liquid, what does the L.E.L. mean?

    • Lowest Efficiency Level

    • Life Span Equivalency Label

    • Lower Explosive Limit

    • Lowest Evaporation Limit

    Correct Answer
    A. Lower Explosive Limit
    Explanation
    The term L.E.L. stands for Lower Explosive Limit when referring to the L.E.L. of a flammable or combustible liquid. The Lower Explosive Limit is the minimum concentration of vapor in air that can ignite and sustain combustion. Below this limit, the mixture is too lean to burn. The L.E.L. is an important safety consideration as it helps determine the potential for a liquid to explode or catch fire in certain conditions.

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  • 8. 

    The colder of two bodies will always absorb heat until both objects are the same temperature is explained by the Law of ____ which is a natural law of physics.

    • Specific Heat

    • Heat Transfer

    • Latent Heat of Vaporization

    • Atomic Weight

    Correct Answer
    A. Heat Transfer
    Explanation
    The Law of Heat Transfer states that heat flows from a hotter object to a colder object until both objects reach the same temperature. This is because heat is a form of energy that naturally seeks to distribute itself evenly. Therefore, the colder body will absorb heat from the hotter body until equilibrium is reached. This law is a fundamental principle in physics that explains the transfer of thermal energy between objects.

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  • 9. 

    The release of heat usually due to bacterial action best defines:

    • Spontaneous heating

    • Heat of decomposition

    • Heat of compression

    • Heat of solution

    Correct Answer
    A. Heat of decomposition
    Explanation
    Heat of decomposition refers to the release of heat that occurs when a compound breaks down into simpler substances. This process is often caused by the action of bacteria, which break down organic matter and release heat as a byproduct. Therefore, the release of heat usually due to bacterial action aligns with the definition of heat of decomposition.

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  • 10. 

    In terms of life safety, two of the MOST IMPORTANT functions of doors are to:

    • Provide light and fresh air in case of a fire

    • Provide access for the fire and police department in time of an emergency

    • Help with the ventilation and confinement of the fire

    • Act as a barrier to fire and smoke and serve as components in a means of egress

    Correct Answer
    A. Act as a barrier to fire and smoke and serve as components in a means of egress
    Explanation
    Doors act as a barrier to fire and smoke, preventing their spread and protecting people from harm. They also serve as components in a means of egress, providing a safe exit route for people during emergencies.

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  • 11. 

    Fire spread through a ventilation duct system is generally controlled by:

    • Fire stops

    • Smoke detector activation

    • Duct of noncombustible construction

    • Fire dampers

    Correct Answer
    A. Fire dampers
    Explanation
    Fire spread through a ventilation duct system is generally controlled by fire dampers. Fire dampers are devices installed within the ductwork that automatically close when they detect the presence of fire or smoke. By closing off the duct, fire dampers prevent the spread of fire and smoke to other areas of the building. This helps to contain the fire and protect occupants by limiting the damage and allowing for safe evacuation. Fire dampers are an essential component of fire protection systems in buildings with ventilation systems.

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  • 12. 

    A sketch depicting the general arrangement of the property in reference to streets, adjacent properties, and other important features is known as a:

    • Plot plan

    • Sectional view

    • Floor plan

    • Blue print

    Correct Answer
    A. Plot plan
    Explanation
    A plot plan is a sketch that shows the overall layout of a property in relation to streets, neighboring properties, and other significant features. It provides a visual representation of how the property is situated within its surroundings and helps in understanding its orientation and boundaries. Unlike a floor plan or a sectional view, which focus on the internal layout and structure of a building, a plot plan provides a broader perspective of the property's location and context. A blueprint, on the other hand, refers to the detailed technical drawings of a building or structure.

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  • 13. 

    Mechanical heat energy initated by the movement between objects in contact with one another defines:

    • Dielectric heating

    • Heat of friction

    • Static electricity

    • Resistance heating

    Correct Answer
    A. Heat of friction
    Explanation
    Heat of friction refers to the heat energy generated when two objects in contact with each other move relative to each other, creating friction. Friction is the resistance encountered when two surfaces slide or rub against each other. As the objects move, the friction between them converts mechanical energy into heat energy. This heat energy is referred to as the heat of friction. It is important to note that the other options mentioned in the question, such as dielectric heating, static electricity, and resistance heating, do not specifically involve the movement between objects in contact, making them incorrect answers.

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  • 14. 

    During an inspection of a building, the first area to be inspected should be the:

    • Roof

    • Basement

    • Interior

    • Exterior

    Correct Answer
    A. Exterior
    Explanation
    During an inspection of a building, it is important to start with the exterior area. This is because the exterior of a building is exposed to various elements such as weather conditions, pests, and structural issues. Inspecting the exterior first allows for identification of any visible damages, cracks, or signs of wear and tear. It also helps in assessing the overall condition of the building, including its foundation, walls, windows, doors, and any potential safety hazards. By starting with the exterior, inspectors can gather important information about the building and prioritize their inspection process accordingly.

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  • 15. 

    The part of total pressure that is lost while forcing water through pipe, fittings, fire hose, and adapters is called:

    • Residual pressure

    • Flow pressure loss

    • Friction loss

    • Static pressure

    Correct Answer
    A. Friction loss
    Explanation
    Friction loss refers to the pressure that is lost while water is being forced through various components such as pipes, fittings, fire hoses, and adapters. This loss of pressure occurs due to the friction between the water and the inner surfaces of these components. It is an important factor to consider when designing water distribution systems, as it affects the overall efficiency and effectiveness of the system.

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  • 16. 

    The common classifications of sprinkler systems include all of the following EXCEPT:

    • Wet pipe system

    • Dry pipe system

    • Deluge system

    • External supply system

    Correct Answer
    A. External supply system
    Explanation
    The correct answer is "external supply system" because this classification is not commonly used for sprinkler systems. Wet pipe systems, dry pipe systems, and deluge systems are all commonly used classifications for sprinkler systems. Wet pipe systems have water constantly in the pipes and are the most common type of sprinkler system. Dry pipe systems are filled with pressurized air or nitrogen and are used in areas where freezing temperatures may occur. Deluge systems have open sprinkler heads and are used in areas where rapid fire spread is a concern. On the other hand, external supply systems are not commonly used for sprinkler systems and therefore do not fall under the common classifications.

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  • 17. 

    Energized electrical equipment and the surrounding area are BEST protected with extinguishers that have a _____ rating.

    • Class A

    • Class B

    • Class C

    • Class D

    Correct Answer
    A. Class C
    Explanation
    Class C fire extinguishers are designed specifically for use on energized electrical equipment. They contain non-conductive extinguishing agents that can safely extinguish fires involving electrical equipment without the risk of electrical shock. Class A extinguishers are suitable for ordinary combustible materials, Class B extinguishers are for flammable liquids and gases, and Class D extinguishers are for combustible metals. Therefore, Class C extinguishers are the best choice for protecting energized electrical equipment and the surrounding area.

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  • 18. 

    The preferred method of applying a portable extinguishing agent to a fire is to direct the stream:

    • Into the flame and allow it to settle

    • A minimum of 5 feet in front of the spill to prevent agitation

    • Up wind and allow it to be blown on to the fire

    • At the base of the fire using a sweeping motion

    Correct Answer
    A. At the base of the fire using a sweeping motion
    Explanation
    The preferred method of applying a portable extinguishing agent to a fire is to direct the stream at the base of the fire using a sweeping motion. This is because aiming at the base of the fire helps to cut off the fuel supply and disrupt the combustion process. By using a sweeping motion, the extinguishing agent can cover a larger area and ensure that all parts of the fire are reached. This method is effective in quickly extinguishing the fire and preventing it from spreading further.

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  • 19. 

    The full name of an OS&Y valve is:

    • Open system and yard valve

    • Open, shut, and yield valve

    • Outside shield and yard valve

    • Outside screw and yoke valve

    Correct Answer
    A. Outside screw and yoke valve
    Explanation
    The correct answer is "outside screw and yoke valve". This valve is called an OS&Y valve because it has an outside screw mechanism for opening and closing the valve, and a yoke that connects the screw to the valve stem. This design allows for easy and visible operation of the valve, making it suitable for applications where regular maintenance and inspection are required.

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  • 20. 

    When a fuel gives of enough vapors so that it can be ignited and burn momentarily, it has reached its:

    • Fire point

    • Upper flammable limit

    • Vapor density

    • Flash point

    Correct Answer
    A. Flash point
    Explanation
    The flash point is the lowest temperature at which a fuel can vaporize and ignite when exposed to an open flame or spark. It is the temperature at which the fuel gives off enough vapors to create a momentary flash or fire. Once the flash point is reached, the fuel can sustain combustion. Therefore, when a fuel reaches its flash point, it has reached the temperature at which it can be ignited and burn momentarily.

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  • 21. 

    The three methods of heat transfer are:

    • Conflagration, combustion, and contact

    • Fuel, heat, and oxygen

    • Conduction, radioactivity, and direct flame contact

    • Convection, conduction, and radiation

    Correct Answer
    A. Convection, conduction, and radiation
    Explanation
    The correct answer is convection, conduction, and radiation. These are the three main methods of heat transfer. Convection refers to the transfer of heat through the movement of fluids or gases. Conduction is the transfer of heat through direct contact between objects. Radiation is the transfer of heat through electromagnetic waves, such as from the sun.

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  • 22. 

    A riser is a ______ pipe which supplies the sprinkler system.

    • Lateral

    • Horizontal

    • Diagonal

    • Vertical

    Correct Answer
    A. Vertical
    Explanation
    A riser is a vertical pipe that supplies the sprinkler system. It is called a riser because it rises vertically from the main water supply line to the sprinkler heads. This vertical orientation allows the water to flow upwards and distribute evenly to the sprinkler heads, ensuring effective coverage of the area being irrigated.

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  • 23. 

    Capacity to perform work; occurs when a force is applied to an object over a distance or when a chemical, biological, or physical transformation is made in a substance.

    • Heat

    • Energy

    • Slurry

    • Friction

    Correct Answer
    A. Energy
    Explanation
    Energy is the correct answer because it is the capacity to perform work. It can be transferred or converted from one form to another, such as from heat to mechanical energy or from chemical energy to electrical energy. In this context, energy can be applied to an object over a distance to do work, or it can be involved in a transformation of a substance. Therefore, energy fits the given description of being able to perform work when a force is applied or a transformation is made.

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  • 24. 

    In an assembly area of less concentrated use, such as a conference room or dining room measuring 150 feet by 200 feet, what would be the occupant load, is a load factor of 15 sq. ft per person is used?

    • 1,000

    • 2,000

    • 500

    • 5,000

    Correct Answer
    A. 2,000
    Explanation
    In this question, the occupant load is calculated by dividing the total area of the assembly area (150 feet by 200 feet) by the load factor of 15 square feet per person. The calculation would be (150 ft x 200 ft) / 15 sq. ft per person = 2,000 people. Therefore, the correct answer is 2,000.

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  • 25. 

    Fires involving flammable liquids, greases, and gases are _____ fires.

    • Class A

    • Class B

    • Class C

    • Class D

    Correct Answer
    A. Class B
    Explanation
    Fires involving flammable liquids, greases, and gases are classified as Class B fires. Class B fires involve flammable or combustible liquids, such as gasoline, oil, or alcohol, as well as flammable gases like propane or butane. These fires can be extinguished using fire extinguishers specifically designed for Class B fires, such as foam or carbon dioxide extinguishers.

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  • 26. 

    When an individual building or business owner feels that the local jurisdiction has made an improper code interpretation or decision, the individual may request a:

    • Hearing in district court or civil court, depending on the degree of hardship

    • Hearing by the civilian review board

    • Review by the Board of Appeals

    • More favorable ruling by the building inspector

    Correct Answer
    A. Review by the Board of Appeals
    Explanation
    When an individual building or business owner disagrees with the local jurisdiction's code interpretation or decision, they can seek a review by the Board of Appeals. This board is responsible for reviewing and deciding on appeals related to code interpretations and decisions made by the local jurisdiction. It provides an avenue for individuals to challenge and potentially overturn the initial decision. The other options mentioned in the question, such as a hearing in court or review by a civilian review board, may also be possible in certain cases but are not specifically mentioned as the correct answer.

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  • 27. 

    According to NFPA 101, Life Safety Code, a building that provides sleeping facilities for 4 or more residents and is occupied by persons who are generally prevented from protecting themselves because of security measures not under their control, is classified as a/an:

    • Residential occupancy

    • Occupancy of unusual structure

    • Industrial occupancy

    • Detention and correctional occupancy

    Correct Answer
    A. Detention and correctional occupancy
    Explanation
    According to NFPA 101, Life Safety Code, a building that provides sleeping facilities for 4 or more residents and is occupied by persons who are generally prevented from protecting themselves because of security measures not under their control is classified as a detention and correctional occupancy. This classification is used for facilities such as prisons, jails, and detention centers where the occupants are restricted and require special security measures for their safety.

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  • 28. 

    The concept of heat flow specifies that heat:

    • Will flow from a hot substance to a cold substance

    • Will flow from a cold substance to a hot substance

    • Will vaporize a liquid thereby also reducing itself

    • Can travel through a building by one or four methods

    Correct Answer
    A. Will flow from a hot substance to a cold substance
    Explanation
    Heat flows from a hot substance to a cold substance due to the difference in temperature between the two substances. This is known as the principle of thermal equilibrium, where heat naturally moves from areas of higher temperature to areas of lower temperature in order to reach a state of balance.

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  • 29. 

    Which of the following COULD NOT be used as a control valve for an automatic sprinkler system?

    • Post indicator valve

    • Wall post indicator valve

    • Outside screw and yoke valve

    • Stop or cock valve

    Correct Answer
    A. Stop or cock valve
    Explanation
    A stop or cock valve could not be used as a control valve for an automatic sprinkler system because it is a manual valve that requires human intervention to open or close. In an automatic sprinkler system, the control valve needs to be able to open and close automatically based on the system's requirements, such as water pressure or the activation of fire detection devices. Therefore, a stop or cock valve would not be suitable for this purpose.

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  • 30. 

    ______ sprinkler systems should be used in buildings where insufficient heat is maintained.

    • Wet pipe

    • Dry pipe

    • Deluge

    • Antifreeze

    Correct Answer
    A. Dry pipe
    Explanation
    Dry pipe sprinkler systems should be used in buildings where insufficient heat is maintained because these systems are designed to prevent the water from freezing in the pipes. In buildings where the temperature can drop below freezing, such as unheated warehouses or parking garages, using a wet pipe system could lead to the water freezing and causing the pipes to burst. Dry pipe systems use pressurized air or nitrogen to hold back the water until a sprinkler head is activated, allowing the water to flow and extinguish the fire. This prevents the pipes from freezing and ensures the system's effectiveness in cold environments.

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  • 31. 

    When considering the distribution of fire extinguishers for Class A hazards, the MAXIMUM travel distance to extinguishers will be ______ feet.

    • 50

    • 75

    • 150

    • 30

    Correct Answer
    A. 75
    Explanation
    The maximum travel distance to fire extinguishers for Class A hazards is 75 feet. This means that in an area with Class A hazards, the farthest a person should have to travel to reach a fire extinguisher should not exceed 75 feet. This ensures that fire extinguishers are easily accessible and can be quickly reached in case of a fire emergency.

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  • 32. 

    Fire inspectors may want to acquaint fire suppression forces with proposed building plans so they can:

    • Recommend code violations

    • Point out better building construction methods

    • Provide their signatures on the plan review process

    • Provide feedback about problems that may be encountered during a fire

    Correct Answer
    A. Provide feedback about problems that may be encountered during a fire
    Explanation
    Fire inspectors may want to acquaint fire suppression forces with proposed building plans so they can provide feedback about problems that may be encountered during a fire. This is important because fire suppression forces need to be aware of any potential challenges or hazards in the building that could affect their ability to effectively respond to and extinguish a fire. By sharing this information, fire inspectors can help ensure that fire suppression forces are prepared and equipped to handle any difficulties they may encounter during a fire incident.

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  • 33. 

    The principle which MOST CLOSELY describes how water extinguishes fire is:

    • Removal of fuel

    • Reduction of temperature

    • Exclusion of oxygen

    • Inhibition of a chain reaction

    Correct Answer
    A. Reduction of temperature
    Explanation
    Water extinguishes fire by reducing the temperature of the fuel and the surrounding area. When water is applied to a fire, it absorbs heat from the flames, causing the temperature to decrease. This decrease in temperature prevents the fire from sustaining itself and eventually leads to its extinguishment.

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  • 34. 

    The control valve for a sprinkler system may be located at the system or outside the building.  This valve should always be a/an:

    • Check valve

    • Indicating type valve

    • Non indicating type valve

    • Quarter turn valve

    Correct Answer
    A. Indicating type valve
    Explanation
    An indicating type valve is the correct answer because it provides a visible indication of whether the valve is open or closed. This is important for a control valve in a sprinkler system as it allows for easy monitoring and ensures that the valve is functioning properly. It helps in quickly identifying any issues or malfunctions with the valve, allowing for prompt maintenance or repairs.

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  • 35. 

    An OS&Y valve is open when threads are:

    • Retracted

    • Extended

    • Reversed

    • Crossed

    Correct Answer
    A. Extended
    Explanation
    When the threads of an OS&Y (Outside Screw and Yoke) valve are extended, it means that the stem of the valve is fully visible and protruding from the valve body. This indicates that the valve is in the open position, allowing the flow of fluid or gas through the valve.

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  • 36. 

    Which of the following IS NOT suggested for courtroom procedure or behavior?

    • Never become argumentative on the witness stand

    • Make sure that all physical evidence, exhibits, photographs, notes, and reference materials are brought to court

    • Attempt to answer a question you do not know

    • Remain impartial - do not give the impression that you have a personal dislike for the defendant

    Correct Answer
    A. Attempt to answer a question you do not know
    Explanation
    In a courtroom procedure, it is not suggested to attempt to answer a question you do not know. It is important to be honest and truthful while providing testimony, and if you do not know the answer to a question, it is better to admit it rather than providing false information. Providing false or incorrect information can undermine your credibility as a witness and can have negative consequences for the case. It is always better to be honest and stick to the facts that you are sure about.

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  • 37. 

    Which item WOULD NOT be considered during a field observation of a site for emergency access?

    • Fire department access roadways which are wide enough to permit fire apparatus to operate and to pass

    • Verification of code compliance for the storage, handling, and use of hazardous materials

    • Physical, topographical, or architectural obstructions

    • Adequate turning radius

    • Whether access roads are within minimum building access distance requirements

    Correct Answer
    A. Verification of code compliance for the storage, handling, and use of hazardous materials
    Explanation
    During a field observation of a site for emergency access, verification of code compliance for the storage, handling, and use of hazardous materials would not be considered. This is because the focus of the observation is on factors such as fire department access roadways, physical obstructions, turning radius, and building access distance requirements. The storage, handling, and use of hazardous materials is a separate concern that would be addressed through other inspections or assessments.

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  • 38. 

    A fire in the presence of a higher than normal concentration of oxygen will:

    • Burn slower than normal

    • Burn faster than normal

    • Not be effected by the oxygen

    • Not burn if oxygen is too rich

    Correct Answer
    A. Burn faster than normal
    Explanation
    When there is a higher than normal concentration of oxygen present, it provides more oxygen molecules for the fire to react with. This increased availability of oxygen allows for more efficient combustion, resulting in a faster burning rate.

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  • 39. 

    _______ fixed fire extinguishing systems are similar to halon systems in that they are primarily used to protect against fires involving flammable gases or liquids and in electrical equipment.

    • Chemical

    • Carbon Dioxide

    • Foam

    • Automatic Sprinkler

    Correct Answer
    A. Carbon Dioxide
    Explanation
    Carbon dioxide fixed fire extinguishing systems are similar to halon systems in that they are primarily used to protect against fires involving flammable gases or liquids and in electrical equipment. Carbon dioxide is an effective fire suppressant as it displaces oxygen, thereby suffocating the fire. It is commonly used in areas where water or foam extinguishers may cause damage, such as computer rooms, laboratories, or electrical substations. These systems are typically activated automatically and release a high concentration of carbon dioxide to quickly extinguish the fire.

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  • 40. 

    That pressure which is normally found on a water distribution system during periods of normal consumption demand is known as:

    • Normal operating pressure

    • Residual pressure

    • Atmospheric pressure

    • Grid pressure

    Correct Answer
    A. Normal operating pressure
    Explanation
    Normal operating pressure refers to the pressure that is typically present in a water distribution system during periods of normal consumption demand. This pressure is necessary to ensure that water is delivered to consumers at an adequate flow rate and pressure. It is different from residual pressure, which is the pressure that remains in the system after water flow has stopped. Atmospheric pressure refers to the pressure exerted by the atmosphere, and grid pressure refers to the pressure within the electrical grid.

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  • 41. 

    The final stage of fire development is:

    • Incipient

    • Decay

    • Growth

    • Fully developed fire

    Correct Answer
    A. Decay
    Explanation
    The final stage of fire development is decay. This stage occurs when the fire starts to run out of fuel and oxygen, causing it to weaken and eventually extinguish. During this stage, the fire's flames and heat diminish, and it becomes less dangerous. The decay stage is characterized by smoldering embers and a decrease in smoke production.

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  • 42. 

    Containers that are approved for flammable and combustible liquids should have HOW MANY devices that will provide sufficient venting capacity to limit the internal pressure of the containers to 10 psi or 30 percent of the bursting pressure of the container?

    • One or more

    • Three or more

    • Four or more

    • Not required

    Correct Answer
    A. One or more
    Explanation
    Containers that are approved for flammable and combustible liquids should have one or more devices that will provide sufficient venting capacity to limit the internal pressure of the containers. This is important to prevent the containers from bursting or exploding due to excessive pressure buildup. Having one or more venting devices ensures that there is adequate release of pressure to maintain the safety of the container and its contents.

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  • 43. 

    DIRECTIONS:  Place the following steps in the order necessary to perform a main drain test on a wet pipe sprinkler system. 1.  fully open the two inch main drain, observe and record the pressure drop 2.  close the two inch main drain and compare readings to previously recorded readings 3.  observe and record the pressure on the gauge(s) at the system riser

    • 3, 1, 2

    • 2, 3, 1

    • 1, 2, 3

    • 3, 2, 1

    Correct Answer
    A. 3, 1, 2
    Explanation
    To perform a main drain test on a wet pipe sprinkler system, the first step is to observe and record the pressure on the gauge(s) at the system riser (Step 3). This provides a baseline pressure reading. The next step is to fully open the two-inch main drain and observe and record the pressure drop (Step 1). This step helps to determine if there are any obstructions or issues with the system. Finally, the two-inch main drain should be closed and the readings compared to the previously recorded readings (Step 2). This step helps to ensure that the system is functioning properly and that there are no leaks or abnormalities.

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  • 44. 

    The temperature at which a liquid fuel, once ignited, will continue to burn is known as:

    • Fire point

    • Vapor temperature

    • Boiling point

    • Flash point

    Correct Answer
    A. Fire point
    Explanation
    The fire point is the temperature at which a liquid fuel, once ignited, will continue to burn. This is different from the flash point, which is the temperature at which a liquid fuel will produce enough vapor to ignite but may not sustain a flame. The boiling point refers to the temperature at which a liquid fuel changes into a vapor state. Therefore, the correct answer is fire point.

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  • 45. 

    In order to have spontaneous heating, the substance MUST BE:

    • Insulated

    • Organic

    • Inorganic

    • Exposed to sunlight

    Correct Answer
    A. Organic
    Explanation
    Organic substances have the ability to undergo spontaneous heating due to their composition and chemical properties. This is because organic materials contain carbon-based compounds that can undergo exothermic reactions, such as oxidation, which can generate heat. In contrast, inorganic substances do not typically have the same ability to undergo spontaneous heating. Insulation and exposure to sunlight are not necessary conditions for spontaneous heating to occur in organic substances.

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  • 46. 

    Every sprinkler system should be equipped with a main control valve located between the:

    • Riser and the branches

    • Source of water supply and the sprinkler system

    • Cross mains and the riser

    • Fire department connection and the riser

    Correct Answer
    A. Source of water supply and the sprinkler system
    Explanation
    The main control valve is an essential component of a sprinkler system as it controls the flow of water from the source of water supply to the sprinkler system. It is located between the source of water supply (such as a water main or a water tank) and the sprinkler system itself. This valve allows for easy shut-off of water supply in case of emergencies or maintenance, ensuring the proper functioning of the sprinkler system.

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  • 47. 

    When approaching a fire, stored pressure water extinguishers are designed to be carried in a/an ____ position and the operator is cautioned to keep the ______ in hand at all times.

    • Inverted, nozzle

    • Upright, hose

    • Horizontal, release grip

    • Vertical, pin

    Correct Answer
    A. Upright, hose
    Explanation
    When approaching a fire, stored pressure water extinguishers are designed to be carried in an upright position. This is because carrying it upright allows the water to be properly pressurized and ready for use. The operator is cautioned to keep the hose in hand at all times to ensure that they have immediate access to the nozzle and can quickly extinguish the fire.

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  • 48. 

    Heat that is released by the mixture of matter within certain liquids is known as:

    • Heat of solution

    • Heat of decomposition

    • Heat of combustion

    • Spontaneous heating

    Correct Answer
    A. Heat of solution
    Explanation
    Heat of solution refers to the heat that is released or absorbed when a solute dissolves in a solvent. This process involves the breaking of solute-solute and solvent-solvent interactions and the formation of new solute-solvent interactions. The heat of solution can be either exothermic (heat is released) or endothermic (heat is absorbed) depending on the nature of the solute and solvent and the conditions of the solution.

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  • 49. 

    The two types of valves found in water supply distribution systems are:

    • Gate and indicating

    • Ball and check

    • Screw and yoke

    • Indicating and nonindicating

    Correct Answer
    A. Indicating and nonindicating
    Explanation
    The correct answer is indicating and nonindicating. In water supply distribution systems, indicating valves are used to show the position of the valve, whether it is open or closed. Nonindicating valves, on the other hand, do not have this feature and do not provide any indication of the valve position. These types of valves serve different purposes in the system and are used in different applications depending on the need for valve position indication.

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Quiz Review Timeline (Updated): Feb 28, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Feb 28, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • May 20, 2011
    Quiz Created by
    Tribecca09

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