RCDD Chapter 7 Firestopping

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  • 1/107 Questions

    According to tests and field observations, seals made of grout or plaster may crack, fracture or fail, or be extremely difficult to re-penetrate.

    • True
    • False
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RCDD Quizzes & Trivia
About This Quiz

Explore key concepts of firestopping in telecommunications infrastructure through this RCDD Chapter 7 quiz. Assess your understanding of the use of pillows, blocks, and various materials in sealing openings to prevent fire spread, enhancing safety and compliance.

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  • 2. 

    Firestopping of ceiling penetrations is especially critical.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Firestopping of ceiling penetrations is especially critical because ceilings often contain multiple penetrations such as electrical wiring, pipes, and HVAC ducts. These penetrations can provide a pathway for fire and smoke to spread from one area of a building to another. Proper firestopping materials and techniques are necessary to seal these penetrations and prevent the spread of fire, heat, and toxic gases. Failure to adequately firestop ceiling penetrations can compromise the fire resistance of the building and put occupants at risk. Therefore, it is true that firestopping of ceiling penetrations is especially critical.

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  • 3. 

    One purpose of every major building code is to reduce the threat of fire.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Building codes are regulations that set standards for the design, construction, and maintenance of buildings. One of the primary objectives of these codes is to ensure the safety of occupants and minimize the risk of disasters such as fires. By enforcing specific requirements for fire-resistant materials, adequate exits and evacuation routes, fire alarms, sprinkler systems, and other fire safety measures, building codes aim to reduce the threat of fire and protect lives and property. Therefore, the statement that one purpose of every major building code is to reduce the threat of fire is true.

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  • 4. 

    When choosing a seal system the designer should use good engineering judgement in relating the configuration and features of a seal to the application.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement emphasizes the importance of using good engineering judgement when selecting a seal system. This means that the designer should carefully consider the configuration and features of the seal in relation to the specific application it will be used for. This indicates that there is no one-size-fits-all solution and that the designer should make an informed decision based on their expertise and understanding of the requirements and constraints of the application. Therefore, the statement is true.

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  • 5. 

    According to tests and field observations, seals made of grout or plaster may crack, fracture, or be extremely difficult to re-penetrate.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Based on tests and field observations, it has been found that seals made of grout or plaster are prone to cracking, fracturing, or becoming very hard to penetrate again. This suggests that the statement is true, indicating that seals made from these materials may not be durable or easily repairable.

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  • 6. 

    Do not use solvent-based caulk seals that may give off toxic or noxious fumes in confined areas that are not well ventilated.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Solvent-based caulk seals should not be used in poorly ventilated areas because they can release toxic or noxious fumes. This is a safety precaution to prevent potential health risks for individuals in these confined spaces. Therefore, the statement is true.

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  • 7. 

    Nonmechanical firestop materials are available in the form of:

    • Nonhardening puttys

    • Caulks or sealants

    • Cementitious materials

    • Silicone foam

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above" because the question asks for nonmechanical firestop materials, and all the options listed - nonhardening putty, caulk or sealant, cementitious materials, and silicone foam - are examples of nonmechanical firestop materials.

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  • 8. 

    Several types of mechanical systems have been developed and marketed. Three common categories include:

    • Cable transit systems

    • Fire-rated pathway devices (enclosed the entire lenght)

    • Factory-fabricated sleeve systems

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above" because the question states that several types of mechanical systems have been developed and marketed, and then lists three common categories. The phrase "All of the above" indicates that all three categories mentioned in the question are correct and applicable.

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  • 9. 

    What is the process of dividing a structure into fire zones:

    • Detection

    • Compartmentation

    • Suppresion

    • Prevention

    Correct Answer
    A. Compartmentation
    Explanation
    Compartmentation is the process of dividing a structure into fire zones. This involves creating physical barriers such as fire-resistant walls and floors to contain a fire within a specific area and prevent its spread to other parts of the building. Compartmentation helps to limit the damage caused by a fire, as it restricts the movement of flames, smoke, and heat. It also allows for safe evacuation of occupants and provides more time for firefighters to control the fire. Therefore, compartmentation is an essential fire safety measure in buildings.

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  • 10. 

    A preferred solution to firestopping existing penetrations is to use a ____________ system assembly that can be installed around the existing cables without interrupting service.

    • Multi-piece

    • Split-sleeve

    • Bi-sleeve

    • Combo-sleeve

    Correct Answer
    A. Split-sleeve
    Explanation
    A preferred solution to firestopping existing penetrations is to use a split-sleeve system assembly that can be installed around the existing cables without interrupting service. This type of system allows for easy installation and removal, making it a convenient option for firestopping existing penetrations. It also ensures that the cables remain protected from fire and smoke, enhancing the overall safety of the building.

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  • 11. 

    Some firestop caulk materials are:

    • Intumescent (swell under heat)

    • Endothermic (absorb heat)

    • Ablative (hard char)

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above" because the question asks for the firestop caulk materials, and all three options listed (intumescent, endothermic, and ablative) are types of firestop caulk materials. Intumescent caulk swells under heat to form a barrier, endothermic caulk absorbs heat to delay the spread of fire, and ablative caulk forms a hard char to resist fire. Therefore, all three options are correct.

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  • 12. 

    Some comon types of forming or packing materials include:

    • Mineral wool batt insulation

    • Glass fiber batt insulation

    • Ceramic fiber insulation

    • Foam backer rods

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above" because all the mentioned materials - mineral wool batt insulation, glass fiber batt insulation, ceramic fiber insulation, and foam backer rods - are commonly used for forming or packing purposes.

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  • 13. 

    Some firestop materials are available in a cementitious form. These materials are:

    • A dry powder

    • Premixed or mixed with water

    • More adaptable to large openings than putty or caulk

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above" because the passage states that cementitious firestop materials can be in the form of a dry powder, premixed with water, or mixed with water. Additionally, it mentions that these materials are more adaptable to large openings than putty or caulk. Therefore, all the options listed in the question are correct.

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  • 14. 

    Study picture on page 7-99 (Intumescent block)

    • OK

    • NO

    Correct Answer
    A. OK
    Explanation
    The correct answer is "OK" because the picture on page 7-99 shows an intumescent block, which is a fire-resistant material used to prevent the spread of fire. The block appears to be in good condition and properly installed, indicating that it is effective in providing fire protection.

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  • 15. 

    Study pictures on page 7-64 (Drywall with steel pipes or conduit) and 7-65 (Drywall with cable)

    • OK

    • NO

    Correct Answer
    A. OK
    Explanation
    The correct answer is "OK" because the question mentions studying pictures on page 7-64 and 7-65 which show drywall with steel pipes or conduit and drywall with cable. Since the answer is "OK," it suggests that there are no issues or problems with the pictures or the content shown in them.

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  • 16. 

    The plenum shield is a high-temperature ceramic blanket.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that the plenum shield is indeed a high-temperature ceramic blanket. This suggests that the plenum shield is designed to withstand and protect against high temperatures, making it suitable for use in environments where heat resistance is required.

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  • 17. 

    Firestop caulks may vary in composition and may be:

    • Latex

    • Water or solvent based

    • 100 percent solid

    • Self-leveling or nonsag

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above" because firestop caulks can be made from different compositions such as latex, water or solvent-based, and 100 percent solid. Additionally, they can also come in self-leveling or nonsag forms. Therefore, all of these options are possible variations for firestop caulks.

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  • 18. 

    The keys to fire protection are:

    • Prevention

    • Compartmentation (e.g. containment)

    • Detection

    • Suppression

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above" because all the mentioned factors are essential for effective fire protection. Prevention involves taking measures to avoid fire incidents through proper maintenance, training, and safety protocols. Compartmentation refers to the division of a building into fire-resistant compartments to prevent the spread of fire. Detection involves the use of fire alarms and smoke detectors to quickly identify and alert occupants of a fire. Suppression involves the use of fire extinguishers, sprinkler systems, or other suppression methods to control or extinguish a fire once detected.

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  • 19. 

    A firestop is a special seal designed and tested to restore what:

    • Safe passage for employees

    • Atmospheric balance to each room

    • Pressure in each room

    • The barrier fire integrity

    Correct Answer
    A. The barrier fire integrity
    Explanation
    A firestop is a special seal designed and tested to restore the barrier fire integrity. This means that it is meant to prevent the spread of fire through walls, floors, or other openings in a building. Firestops are crucial in maintaining the structural integrity of a building during a fire and ensuring that the fire does not spread to other areas.

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  • 20. 

    Firestop systems can be roughly divided into two broad categories:

    • Electrical

    • Mechanical

    • Physical

    • Nonmechanical

    Correct Answer(s)
    A. Mechanical
    A. Nonmechanical
    Explanation
    Firestop systems can be categorized into two broad categories: mechanical and nonmechanical. Mechanical firestop systems typically involve the use of physical barriers or devices to prevent the spread of fire, such as fire-resistant doors, walls, or partitions. Nonmechanical firestop systems, on the other hand, rely on the use of fire-resistant materials, such as fire-resistant sealants or sprays, to seal off any gaps or openings that could allow the spread of fire. These two categories encompass the different approaches and methods used in firestop systems to ensure fire containment and safety.

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  • 21. 

    What is a critical requirement for reducing the severity of fire loss.

    • Compartmentation

    • Building codes

    • Building automation systems (BAS)

    • Standards and practices

    Correct Answer
    A. Compartmentation
    Explanation
    Compartmentation is a critical requirement for reducing the severity of fire loss. Compartmentation involves dividing a building into separate compartments using fire-resistant materials, such as fire doors and walls. This helps to contain the spread of fire, smoke, and heat, limiting the damage and allowing occupants more time to evacuate safely. Building codes, building automation systems, and standards and practices also play important roles in fire safety, but compartmentation specifically addresses the physical barriers that can prevent fire from spreading throughout a building.

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  • 22. 

    In many cases, firestop seals may be required to perform secondary safety or security functions such as:

    • Acting as environmental protection seals

    • Special requirements

    • Sealling around pipes that reach high temperatures and may move axially or laterally

    • Resisting the effects of exposion

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Firestop seals are used to prevent the spread of fire and smoke through openings in walls, floors, and ceilings. In addition to their primary function, they can also serve secondary safety or security purposes. They can act as environmental protection seals, ensuring that air, water, and other substances do not pass through the openings. Firestop seals may have special requirements, such as being able to withstand high temperatures or movement of pipes. They can also resist the effects of explosions, providing an added layer of safety. Therefore, all of the above options are correct as firestop seals can perform these secondary functions.

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  • 23. 

    Controlling the movement of smoke and toxic fumes is a vital function of:

    • Air flow

    • Mass air flow

    • Air pressure

    • Compartmentation

    Correct Answer
    A. Compartmentation
    Explanation
    Compartmentation refers to the division of a building into separate compartments, typically through the use of fire-resistant walls, floors, and doors. This helps to contain the spread of smoke and toxic fumes in the event of a fire, allowing occupants to safely evacuate and reducing the risk of further damage. By creating barriers between different areas, compartmentation helps to control the movement of smoke and fumes, making it a vital function in ensuring the safety of a building and its occupants.

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  • 24. 

    Intumescent materials:

    • Absorb heat

    • Harden and char

    • Swell

    Correct Answer
    A. Swell
    Explanation
    Intumescent materials are substances that expand or swell when exposed to heat or fire. This swelling creates a barrier that insulates the material underneath, protecting it from the heat. Therefore, the correct answer is "Swell" because it accurately describes the behavior of intumescent materials when subjected to high temperatures.

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  • 25. 

    What may be required to perform secondary safety or security functions:

    • Designer

    • Cabling plant

    • Firestop seals

    • Telecommunications rooms

    Correct Answer
    A. Firestop seals
    Explanation
    Firestop seals may be required to perform secondary safety or security functions. Firestop seals are materials used to seal openings and gaps in buildings to prevent the spread of fire and smoke. These seals are installed in walls, floors, and ceilings to maintain the integrity of fire-rated barriers and prevent the passage of flames and toxic gases. By effectively sealing these openings, firestop seals help to contain fires and protect occupants and property. Therefore, firestop seals are an essential component of building safety and security systems.

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  • 26. 

    Firestops are a vital part of any fully implemented  ______________ system.

    • Prevention

    • Compartmentation

    • Detection

    • Suppression

    Correct Answer
    A. Compartmentation
    Explanation
    Compartmentation is the correct answer because firestops are used to create barriers or compartments in a building, preventing the spread of fire and smoke from one area to another. These barriers help to contain the fire within a specific area, giving occupants more time to evacuate and allowing firefighters to control the fire more effectively. Without compartmentation, a fire could easily spread throughout the building, causing more damage and putting lives at risk. Therefore, firestops are an essential component of a fully implemented compartmentation system.

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  • 27. 

    Concrete has an F rating of

    • 2 hours

    • 3 hours

    • 4 hours

    • 5 hours

    Correct Answer
    A. 3 hours
    Explanation
    Concrete has an F rating of 3 hours. This means that the concrete can withstand fire for up to 3 hours before it starts to lose its structural integrity. The F rating is used to determine the fire resistance of various building materials. A higher F rating indicates a longer duration of fire resistance. Therefore, concrete with an F rating of 3 hours is considered to have a good level of fire resistance.

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  • 28. 

    The ring outside of the pipe or cable being protected and inside the hole or sleeve system is known as:

    • Core drill

    • Pass through

    • Annular space

    • Sleeve area

    Correct Answer
    A. Annular space
    Explanation
    The ring outside of the pipe or cable being protected and inside the hole or sleeve system is known as the annular space. This refers to the empty space or gap between the pipe or cable and the surrounding hole or sleeve. It is important to have an annular space to allow for movement and flexibility of the pipe or cable, as well as to provide insulation and protection.

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  • 29. 

    Firestops are more correctly called through-penetration firesop systems.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is correct because firestops are indeed more accurately referred to as through-penetration firestop systems. Firestops are materials or devices used to seal openings and prevent the spread of fire, smoke, and toxic gases through walls, floors, and other building components. Through-penetration firestop systems are specifically designed to seal openings where pipes, cables, or other penetrations pass through fire-rated walls or floors, ensuring that the fire resistance of the assembly is maintained. Therefore, the statement is true.

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  • 30. 

    Silicone foams are mainly used for ___________ openings.

    • Small

    • Medium

    • Large

    Correct Answer
    A. Large
    Explanation
    Silicone foams are mainly used for sealing large openings. The properties of silicone foam, such as its flexibility, durability, and resistance to extreme temperatures, make it an ideal material for filling and sealing larger gaps or openings. It can effectively prevent the infiltration of air, water, dust, or other particles through these larger openings, providing a reliable seal and insulation.

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  • 31. 

    Which type of material absorbs heat

    • Ablative

    • Endothermic

    • Intumescent

    Correct Answer
    A. Endothermic
    Explanation
    Endothermic materials are able to absorb heat from their surroundings. This is due to the fact that these materials undergo a chemical reaction when exposed to heat, which requires energy to be absorbed from the surroundings. As a result, endothermic materials feel cool to the touch as they absorb heat energy, making them effective for applications such as cooling systems or heat shields. Ablative and intumescent materials, on the other hand, are not specifically designed to absorb heat but rather to provide protection against it through different mechanisms.

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  • 32. 

    Water resistance (W) is an optional test

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The given correct answer is true because water resistance (W) is indeed an optional test. This means that it is not mandatory for a product to undergo this test in order to meet certain standards or regulations. Instead, the decision to conduct the water resistance test is left to the discretion of the manufacturer or the organization conducting the testing.

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  • 33. 

    Putty is an excellent choice for applications in __________ openings where future entry is required.

    • Telecommunications room (TR)

    • Intrabuilding

    • Small- to medium sized

    • Outside cable plant (OCP)

    Correct Answer
    A. Small- to medium sized
    Explanation
    Putty is an excellent choice for applications in small- to medium-sized openings where future entry is required because it is a versatile and moldable material that can easily fill and seal gaps. It can be easily applied and removed, allowing for easy access to the opening when needed. Additionally, small- to medium-sized openings are typically easier to seal with putty compared to larger openings, making it an ideal choice for this type of application.

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  • 34. 

    One layer of drywall provides an F rating of

    • 1 hour

    • 2 hours

    • 3 hours

    • 1.5 hours

    Correct Answer
    A. 1 hour
    Explanation
    Drywall is a fire-resistant material commonly used in construction. It is classified based on its ability to withstand fire for a certain period of time, known as its fire rating. In this case, the question asks for the fire rating provided by one layer of drywall. The correct answer is 1 hour, indicating that one layer of drywall can withstand fire for up to 1 hour before it starts to deteriorate or allow the fire to spread. This fire rating is crucial in providing a barrier and allowing occupants to safely evacuate a building in case of a fire.

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  • 35. 

    Pillows may not be used for a permanent installation

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Pillows may be a permanent installation.

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  • 36. 

    Active systems rely on what.

    • External energy source

    • Their inherant properties

    Correct Answer
    A. External energy source
    Explanation
    Active systems rely on an external energy source to function. This means that these systems require an input of energy from an outside source in order to operate. Without this external energy source, the active system would not be able to perform its intended function.

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  • 37. 

    A membrane penetration is made when a pipe, conduit, cable, or other service element breeches what:

    • Both sides or membranes of a fire-resistive barrier

    • A single side or membrane of a fire-resistive barrier

    Correct Answer
    A. A single side or membrane of a fire-resistive barrier
    Explanation
    A membrane penetration is made when a pipe, conduit, cable, or other service element breaches a single side or membrane of a fire-resistive barrier. This means that the barrier is compromised on one side, allowing the service element to pass through. It is important to ensure that fire-resistive barriers are properly maintained and any membrane penetrations are sealed to prevent the spread of fire and smoke between different areas of a building.

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  • 38. 

    Which of the keys to fire protection are considered passive protection.

    • Prevention

    • Compartmentation

    • Detection

    • Suppression

    Correct Answer
    A. Compartmentation
    Explanation
    Passive fire protection refers to measures that are designed to contain the spread of fire and smoke, without the need for human intervention. Compartmentation is one such measure, where a building is divided into compartments using fire-resistant walls, floors, and doors. These compartments act as barriers, preventing the spread of fire and smoke from one area to another. Prevention, detection, and suppression, on the other hand, require active human involvement or the use of fire safety equipment. Therefore, compartmentation is considered a passive fire protection measure.

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  • 39. 

    An electrical apparatus should not penetrate drywall, which is not qualified for use in fire-rated assemblies with individual penetrations exceeding _________ in surface area of one face of a stud wall.

    • 2500 mm^2 (4 sq in)

    • 5,000 mm^2 (8 sq in.)

    • 10,000 mm^2 (16 sq in)

    • 12,500 mm^2 (20 sq in)

    Correct Answer
    A. 10,000 mm^2 (16 sq in)
    Explanation
    Drywall is not qualified for use in fire-rated assemblies with individual penetrations exceeding 10,000 mm^2 (16 sq in) in surface area of one face of a stud wall. This means that any electrical apparatus that penetrates the drywall and exceeds this surface area limit would not be considered safe for use in fire-rated assemblies.

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  • 40. 

    NRTL stands for:

    • Nationally Registered Testing Laboratory

    • Nationally Recongnized Testing Laboratory

    • National Registered Testing Liscense

    Correct Answer
    A. Nationally Recongnized Testing Laboratory
    Explanation
    NRTL stands for Nationally Recognized Testing Laboratory. This term refers to a laboratory that has been recognized by the Occupational Safety and Health Administration (OSHA) as being competent to perform testing and certification of products for safety purposes. These laboratories are responsible for evaluating and testing various products to ensure that they meet the required safety standards and regulations.

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  • 41. 

    An electrical apparatus should not penetrate drywall, which is not qualified for use in fire-rated assemblies with multiple penetrations exceeding _________ in surface area per 9.3 sq m (100sq ft) of wall area.

    • 32,208 sq mm (50 sq in)

    • 64,516 sq mm (100 sq in)

    • 96,724 sq mm (150 sq in)

    • 129,032 sq mm (200 sq in)

    Correct Answer
    A. 64,516 sq mm (100 sq in)
    Explanation
    Drywall is not qualified for use in fire-rated assemblies with multiple penetrations exceeding 64,516 sq mm (100 sq in) in surface area per 9.3 sq m (100 sq ft) of wall area. This means that if there are multiple electrical apparatuses penetrating the drywall and the total surface area of these penetrations exceeds 64,516 sq mm (100 sq in) per 9.3 sq m (100 sq ft) of wall area, then the drywall is not suitable for use in fire-rated assemblies.

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  • 42. 

    Firestop putty is also available in the form of a _________.

    • Liquid

    • Powder

    • Pad

    Correct Answer
    A. Pad
    Explanation
    Firestop putty is available in various forms, including liquid, powder, and pad. The given correct answer, "Pad," suggests that firestop putty can be found in the form of a pad. A firestop pad is a pre-formed piece of putty that can be easily applied to seal gaps and prevent the spread of fire and smoke. This option indicates that firestop putty is not limited to just liquid or powder forms, but can also be obtained in a convenient pad form for ease of use and application.

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  • 43. 

    The Canadian H (hose stream rating) is part of the U.S. F rating

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The Canadian H (hose stream rating) is part of the U.S. F rating. This means that the Canadian H rating is included within the U.S. F rating system. The U.S. F rating system is used to measure the fire resistance of a building material or assembly. The Canadian H rating specifically measures the resistance of a material to the impact of water from a hose stream during a fire. Therefore, it is accurate to say that the Canadian H rating is a component of the U.S. F rating system.

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  • 44. 

    For international standards, "E" ratings are __________ ratings, which are similar to "F" ratings in the United States.

    • Electrical

    • Efficiency

    • Endurance

    Correct Answer
    A. Endurance
    Explanation
    "E" ratings are endurance ratings, which means they indicate the ability of a product or system to withstand and continue functioning under specific conditions for a prolonged period of time. This is similar to "F" ratings in the United States, where "F" also signifies endurance or the ability to withstand certain conditions without failure.

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  • 45. 

    Mineral wool batt insulation is a popular type of packing or forming material. It is sometimes generically referred to as rock wool or slag wool. It is an insulatation material made by fiberizing rock or steel slag so it has tremendous high-temperature capabilites. What is the temperature capabilities?

    • Up to 546 degrees C (1000 degrees F)

    • Up to 796 degrees C (1500 degrees F)

    • Up to 1093 degrees C (2000 degrees F)

    • Up to 1345 degrees C (2500 degrees F)

    Correct Answer
    A. Up to 1093 degrees C (2000 degrees F)
    Explanation
    Mineral wool batt insulation, also known as rock wool or slag wool, is made by fiberizing rock or steel slag. This insulation material has tremendous high-temperature capabilities, allowing it to withstand temperatures up to 1093 degrees Celsius (2000 degrees Fahrenheit).

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  • 46. 

    Intumescent sheets with a sheet metal backing may be used to seal _____ openings for cable, conduit, metal, or nonmetallic pipe.

    • Small

    • Medium

    • Large

    • Extra large

    Correct Answer
    A. Large
    Explanation
    Intumescent sheets with a sheet metal backing are used to seal large openings for cable, conduit, metal, or nonmetallic pipe. This suggests that these sheets are designed to be effective in sealing larger openings, which may require a more substantial barrier to prevent the spread of fire or smoke.

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  • 47. 

    What is considered the first line of defense against fires:

    • Suppresion

    • Compartmentation

    • Detection

    Correct Answer
    A. Compartmentation
    Explanation
    Compartmentation is considered the first line of defense against fires. Compartmentation involves dividing a building into separate compartments or areas using fire-resistant walls, floors, and doors. This helps to contain the fire within a specific area, preventing its spread to other parts of the building. By limiting the fire's growth and providing safe escape routes, compartmentation allows for effective fire control and evacuation.

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  • 48. 

    If the floor or ceiling is made of wood, what firestopping method should be used?

    • Glass fiber batt for the full thickness of the floor element

    • Mineral wool insulation for the full thickness of the floor element

    • Putty for half the thickness of the floor element

    • Foam backer rods and then putty for the full thickness of the floor element

    Correct Answer
    A. Mineral wool insulation for the full thickness of the floor element
    Explanation
    Mineral wool insulation is the correct firestopping method to use if the floor or ceiling is made of wood. Mineral wool insulation is a non-combustible material that can withstand high temperatures and prevent the spread of fire. It is commonly used in firestopping applications to fill gaps and provide a barrier against the passage of flames and smoke. Using mineral wool insulation for the full thickness of the floor element ensures that the entire area is properly protected, reducing the risk of fire spreading through the wood structure.

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  • 49. 

    Common mechanical firestop systems are:

    • Cable transit system

    • Caulks and Sealant

    • Fire-rated pathway devices

    • Factory-fabricated sleeve systems

    • Intumescent wraps

    Correct Answer(s)
    A. Cable transit system
    A. Fire-rated pathway devices
    A. Factory-fabricated sleeve systems
    Explanation
    The common mechanical firestop systems mentioned include cable transit systems, fire-rated pathway devices, and factory-fabricated sleeve systems. These systems are used to prevent the spread of fire through openings in walls, floors, and ceilings. Cable transit systems are designed to seal and protect cables as they pass through fire-rated barriers. Fire-rated pathway devices provide a seal around pipes, conduits, and ducts to maintain the fire resistance of the barrier. Factory-fabricated sleeve systems are pre-manufactured devices that provide a fire-resistant seal around penetrations. These systems are essential for ensuring the safety and integrity of a building during a fire.

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  • Feb 28, 2012
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