Roofing System Quiz

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Roofing System Quiz - Quiz

Questions and Answers
  • 1. 

    What is the smallest gutter size?

    • A.

      6"

    • B.

      8"

    • C.

      12"

    • D.

      24"

    Correct Answer
    D. 24"
    Explanation
    The correct answer is 6". This is because the question is asking for the smallest gutter size, and out of the options provided, 6" is the smallest.

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  • 2. 

    Using 12 feet G.I. Corrugated roofing sheet, what is the distance of the purlins?

    • A.

      450 mm

    • B.

      600 mm

    • C.

      660 mm

    • D.

      700 mm

    Correct Answer
    C. 660 mm
    Explanation
    The distance of the purlins is 660 mm. This can be determined by dividing the length of the G.I. corrugated roofing sheet (12 feet) by the number of purlins required. In this case, the purlins are spaced at a distance of 660 mm apart.

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  • 3. 

    Which is not part of the truss system?

    • A.

      Girder

    • B.

      Top chord

    • C.

      Girt

    • D.

      Purlins

    Correct Answer
    C. Girt
    Explanation
    A girt is not part of the truss system. Trusses are structural frameworks made of beams or bars that are connected to form triangular shapes. They are commonly used in construction to support roofs, bridges, and other structures. The girder, top chord, and purlins are all components of a truss system. However, a girt is a horizontal structural member that is typically used in the construction of walls, not trusses. It is usually located at the mid-height of the wall and provides additional support and stability.

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  • 4. 

    An opening in the side of the building, as in a parapet, for draining off rainwater?

    • A.

      Scupper

    • B.

      Roof drain

    • C.

      Gutter

    • D.

      Gargoyles

    Correct Answer
    A. Scupper
    Explanation
    A scupper is an opening in the side of a building, typically found in a parapet, that is used to drain off rainwater. It allows water to flow out of the building, preventing it from accumulating and causing damage. Roof drains and gutters are also used for rainwater drainage, but they are not specifically openings in the side of the building like scuppers. Gargoyles, on the other hand, are decorative features often found on buildings, but they do not serve the purpose of draining off rainwater.

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  • 5. 

    What type of roof is ideal for warehouse or factory?

    • A.

      Shingles

    • B.

      Polcarbonate

    • C.

      Metal decking

    • D.

      Long span G.I.

    Correct Answer
    D. Long span G.I.
    Explanation
    Long span G.I. is the ideal type of roof for a warehouse or factory because it offers several advantages. It is made of galvanized iron, which provides durability and strength, making it suitable for large industrial structures. The long span design allows for wider roof coverage, reducing the need for additional support columns and maximizing the usable space inside the warehouse or factory. Additionally, G.I. roofs are resistant to corrosion and can withstand harsh weather conditions, making them a reliable choice for industrial buildings.

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  • 6. 

    What type of roof is ideal for sidewalk?

    • A.

      Clay tile

    • B.

      Polycarbonate

    • C.

      Metal decking

    • D.

      Long span GI

    Correct Answer
    B. Polycarbonate
    Explanation
    Polycarbonate is the ideal type of roof for a sidewalk because it is lightweight, durable, and transparent. It allows natural light to pass through, creating a bright and inviting space while still providing protection from the elements. Polycarbonate roofs are also resistant to UV rays, ensuring that they do not yellow or become brittle over time. Additionally, polycarbonate is easy to install and maintain, making it a practical choice for sidewalk roofs.

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  • 7. 

    What type of roof is ideal for green house?

    • A.

      Shingles

    • B.

      Laminated glass roofing

    • C.

      Long span GI

    • D.

      Polycarbonate

    Correct Answer
    D. Polycarbonate
    Explanation
    Polycarbonate is the ideal type of roof for a greenhouse because it allows maximum sunlight penetration while providing insulation and durability. Polycarbonate roofs are lightweight, UV resistant, and have excellent thermal properties, creating a controlled environment for plants to thrive. The material also offers high impact resistance and is easy to install and maintain. Additionally, polycarbonate roofs are cost-effective and can be customized to fit different greenhouse designs and sizes.

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  • 8. 

    What type of roof is ideal for a beach rest house?

    • A.

      Shingles

    • B.

      Metal deck

    • C.

      Long span GI

    • D.

      Polycarbonate

    Correct Answer
    A. Shingles
    Explanation
    Shingles are the ideal type of roof for a beach rest house because they are durable, weather-resistant, and provide good insulation. They can withstand the harsh coastal conditions, including strong winds, saltwater exposure, and intense sunlight. Shingles also come in a variety of colors and styles, allowing homeowners to choose a design that complements the beach aesthetic. Additionally, shingles are relatively easy to install and maintain, making them a practical choice for a beach rest house.

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  • 9. 

    What type of roofing is ideal for forested area?

    • A.

      Steep gable roof

    • B.

      Gable

    • C.

      Butterfly roof

    • D.

      Long overhanded roofing

    Correct Answer
    A. Steep gable roof
    Explanation
    A steep gable roof is ideal for a forested area because it has a high pitch, which allows for easy shedding of leaves, branches, and other debris that may fall from the surrounding trees. The steep angle also helps to prevent the accumulation of snow during winter months. Additionally, the gable design provides good ventilation and allows for efficient drainage of rainwater, reducing the risk of leaks or water damage.

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  • 10. 

    What type of roofing is ideal for industrial plant where toxic fumes are emitted?

    • A.

      Plain GI sheet

    • B.

      Corrugated GI sheet

    • C.

      Polycarbonate sheet

    • D.

      Colour roof

    Correct Answer
    B. Corrugated GI sheet
    Explanation
    Corrugated GI sheet is the ideal type of roofing for an industrial plant where toxic fumes are emitted because it is durable, resistant to chemicals, and has excellent ventilation properties. The corrugated design allows for better airflow, which helps in dispersing the toxic fumes and preventing any buildup of harmful gases. Additionally, GI (galvanized iron) sheet is known for its strength and corrosion resistance, making it suitable for industrial environments.

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  • 11. 

    What type of roofing is ideal for houses located at coastal area?

    • A.

      Brick tile

    • B.

      Clay tile

    • C.

      Concrete tile

    • D.

      GI sheet roofing

    Correct Answer
    B. Clay tile
    Explanation
    Clay tile is the ideal roofing option for houses located at coastal areas. This is because clay tiles are highly durable and resistant to the harsh coastal climate, including strong winds, saltwater, and humidity. Clay tiles also have excellent thermal insulation properties, which help to keep the house cool in hot coastal environments. Additionally, clay tiles have a long lifespan and require minimal maintenance, making them a practical choice for coastal homes.

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  • 12. 

    What type of roofing is ideal for structures near the sea?

    • A.

      Asphalt roofing

    • B.

      Concrete roofing

    • C.

      Galvanized iron roofing

    • D.

      Fiber cement board

    Correct Answer
    A. Asphalt roofing
    Explanation
    Asphalt roofing is ideal for structures near the sea because it is highly resistant to saltwater corrosion and can withstand the harsh coastal environment. The asphalt material provides excellent protection against moisture, wind, and UV rays, making it a durable and long-lasting option for coastal areas. Additionally, asphalt roofing is also known for its ability to resist algae and moss growth, which can be common in humid coastal climates.

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  • 13. 

    What type of roofing is ideal for a busy airport?

    • A.

      Concrete slab

    • B.

      Thick thatch roof

    • C.

      Ceramic tile

    • D.

      GI roof with double bubble foil insulation

    Correct Answer
    D. GI roof with double bubble foil insulation
    Explanation
    A GI roof with double bubble foil insulation is ideal for a busy airport because it is durable, low-maintenance, and provides excellent insulation. The GI roof is made of galvanized iron, which is resistant to corrosion and can withstand heavy foot traffic and extreme weather conditions. The double bubble foil insulation adds an extra layer of thermal protection, helping to regulate temperature and reduce energy costs. This type of roofing is also lightweight, making it easier to install and transport materials to the airport. Overall, the GI roof with double bubble foil insulation is the best choice for a busy airport due to its durability, insulation properties, and low maintenance requirements.

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  • 14. 

    What is the commercial length of a long span roofing?

    • A.

      18m

    • B.

      10m

    • C.

      12m

    • D.

      None

    Correct Answer
    D. None
    Explanation
    The question asks for the commercial length of a long span roofing. However, none of the given options provide a specific length for the commercial length of a long span roofing. Therefore, the correct answer is "none" as there is no option that accurately represents the commercial length of a long span roofing.

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  • 15. 

    Steel coated with zinc is also called?

    • A.

      Galvanized

    • B.

      Powder coated

    • C.

      Die-cast aluminum

    • D.

      Anodized

    Correct Answer
    A. Galvanized
    Explanation
    Steel coated with zinc is also called galvanized because galvanization is the process of applying a protective zinc coating to steel or iron to prevent rusting. This process involves immersing the steel in a bath of molten zinc, which forms a metallurgical bond with the steel, creating a protective layer. Galvanized steel is highly resistant to corrosion and is commonly used in outdoor applications such as construction, automotive, and agricultural industries.

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  • 16. 

    How is the top chord connected to bottom chord as shown in the figure?

    • A.

      Rivets only

    • B.

      Screws

    • C.

      Welded

    • D.

      Gusset plate

    Correct Answer
    D. Gusset plate
    Explanation
    The top chord is connected to the bottom chord using a gusset plate. A gusset plate is a flat plate that is used to connect two or more structural members together. It is typically made of steel and is welded to the top and bottom chords, providing a strong and stable connection between them. This type of connection is commonly used in truss structures to ensure structural integrity and load-bearing capacity.

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  • 17. 

    It is used to attached aluminum gutter to roof?

    • A.

      Rivets

    • B.

      Screw

    • C.

      Umbrella nails

    • D.

      Weld

    Correct Answer
    A. Rivets
    Explanation
    Rivets are used to attach aluminum gutters to the roof. Rivets are fasteners that consist of a cylindrical shaft with a head on one end. They are inserted into pre-drilled holes and then deformed on the other end to create a permanent connection. Rivets are commonly used in applications where a strong and secure joint is required, such as attaching gutters to roofs.

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  • 18. 

    What is the Sydney Opera House “shell” made of?

    • A.

      Pre-cast concrete panel

    • B.

      Space frame truss with white metal cladding

    • C.

      Sixed fabric membrane

    • D.

      Pre-fabricated “light” load-bearing concrete shell

    Correct Answer
    A. Pre-cast concrete panel
    Explanation
    The Sydney Opera House "shell" is made of pre-cast concrete panels.

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  • 19. 

    \  \               /  /   \  \           /  / _  \_\       /_/  _   l                  l   l_________l Identify the figure shown above?

    • A.

      Valley gutter

    • B.

      Gutter

    • C.

      Butterfly gutter

    • D.

      Hip gutter

    Correct Answer
    A. Valley gutter
    Explanation
    The figure shown above is a valley gutter.

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  • 20. 

    What is the ideal roofing for a "bungalow house" which is located between two story houses?

    • A.

      Long span GI roofing

    • B.

      Corrugated GI roofing

    • C.

      Asphalt shingles

    • D.

      Roof tiles

    Correct Answer
    D. Roof tiles
    Explanation
    The ideal roofing for a bungalow house located between two-story houses would be roof tiles. Roof tiles are a popular choice for bungalow houses as they provide a durable and aesthetically pleasing option. They offer good insulation, are resistant to fire and extreme weather conditions, and can complement the architectural style of the house. Additionally, roof tiles are available in various colors and designs, allowing homeowners to customize the look of their roof to match the surrounding houses.

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  • 21. 

    What is the ideal way of insulating the roof?

    • A.

      Roofing sheet, an air space or gap, then aluminum insulation

    • B.

      Roofing sheet with aluminum insulation underneath

    • C.

      Roofing sheet, purlins with insulation underneath

    • D.

      Roofing sheet, insulations, purlins, insulations

    Correct Answer
    A. Roofing sheet, an air space or gap, then aluminum insulation
    Explanation
    The ideal way of insulating the roof is by having a roofing sheet, followed by an air space or gap, and then aluminum insulation. This arrangement helps to create a barrier between the roof and the interior of the building, preventing heat transfer and improving energy efficiency. The air space or gap acts as a buffer, reducing the direct contact between the roofing sheet and the insulation, which can enhance the insulation's effectiveness. The aluminum insulation provides an additional layer of thermal protection, reflecting heat away from the roof and keeping the interior cooler.

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  • 22. 

    How are gutters joined?

    • A.

      Aluminum rivets

    • B.

      Tekscrew

    • C.

      Seam pattern

    • D.

      Folding system

    Correct Answer
    A. Aluminum rivets
    Explanation
    Gutters are joined using aluminum rivets. Aluminum rivets are commonly used in gutter installation because they are lightweight, durable, and resistant to corrosion. They provide a secure and long-lasting connection between gutter sections, ensuring that they stay in place and effectively channel water away from the building. Additionally, aluminum rivets are easy to install and can be used on various types of gutters, making them a popular choice among professionals and DIY enthusiasts.

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  • 23. 

    Use to connect G.I. roofing to steel purlin?

    • A.

      Self tapping screw

    • B.

      Umbrella nail

    • C.

      Machine bolt with nuts

    • D.

      Expansion bolt

    Correct Answer
    A. Self tapping screw
    Explanation
    Self-tapping screws are commonly used to connect G.I. roofing to steel purlins because they have a sharp, pointed end that can easily penetrate and create its own thread in the steel. This eliminates the need for pre-drilling holes and makes the installation process faster and more efficient. Additionally, self-tapping screws provide a secure and reliable connection between the roofing and purlin, ensuring that they stay firmly in place even under harsh weather conditions.

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  • 24. 

    Where is the gutter attached?

    • A.

      Fascia board

    • B.

      Purlins edge

    • C.

      Cleats

    • D.

      Girder

    Correct Answer
    A. Fascia board
    Explanation
    The gutter is attached to the fascia board. The fascia board is a long, straight board that runs along the lower edge of the roof. It is typically made of wood or metal and is used to support the bottom row of roof tiles or shingles. The gutter is attached to the fascia board using brackets or hangers, allowing it to collect and redirect rainwater away from the roof and foundation of the building.

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  • 25. 

    What is galvanized roofing?

    • A.

      Zinc coated on 1 side

    • B.

      Zinc coated on 2 sides

    • C.

      Zinc coated on all sides

    • D.

      Zinc coated any of the side

    Correct Answer
    C. Zinc coated on all sides
    Explanation
    Galvanized roofing refers to a roofing material that has been coated with zinc on all sides. This zinc coating provides protection against corrosion and extends the lifespan of the roofing material. By coating the roofing on all sides, it ensures that all surfaces are protected from moisture, rust, and other damaging elements. This makes galvanized roofing a durable and reliable option for various construction projects.

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  • 26. 

    For polycarbonate roofing, what is the gap for?

    • A.

      To avoid cracks for anticipated vibration

    • B.

      For thermal expansion

    • C.

      Space provided for waterproofing sealant

    • D.

      To follow the linear grain

    Correct Answer
    B. For thermal expansion
    Explanation
    The gap in polycarbonate roofing is for thermal expansion. Polycarbonate is a material that expands and contracts with changes in temperature. If there is no gap provided, the roofing may crack or become damaged due to the stress caused by thermal expansion. By allowing for a gap, the roofing can expand and contract freely without causing any cracks or damage.

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  • 27. 

    A material used for roofing that melts when exposed to the sun, hence is transformed as one?

    • A.

      PVC roofing

    • B.

      Polycarbonate

    • C.

      Silicone roofing

    • D.

      Asphalt

    Correct Answer
    D. Asphalt
    Explanation
    Asphalt is a material used for roofing that melts when exposed to the sun. This property allows it to transform and conform to the shape of the roof, creating a tight and waterproof seal. Asphalt is commonly used in roofing due to its durability, affordability, and ease of installation.

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  • 28. 

    Roofing material use for skylights?

    • A.

      Laminated glass

    • B.

      Polycarbonate

    • C.

      Wire glass

    • D.

      Tempered glass

    Correct Answer
    A. Laminated glass
    Explanation
    Laminated glass is the correct answer for roofing material used for skylights. Skylights are windows installed in the roof to allow natural light to enter a building. Laminated glass is a type of safety glass that is made by sandwiching a layer of polyvinyl butyral (PVB) between two layers of glass. This process makes the glass less likely to shatter when broken, providing added safety. Laminated glass is also known for its durability and ability to withstand harsh weather conditions, making it an ideal choice for skylights.

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  • 29. 

    Roof for entry of light?

    • A.

      Skylight

    • B.

      Clerestory

    • C.

      Triforium

    • D.

      Roofed window

    Correct Answer
    A. Skylight
    Explanation
    send your feedbacks in "architalk page". In this question, skylight is a part of a "roof" ( or the entire roof) that emits or accepts daylight while a clerestory is a "window" that functions the same but parallel to wall or admits light from the wall not from the roof.

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  • 30. 

    Aside from roofing for polycarbonate, what's the other common use?

    • A.

      Flooring

    • B.

      Partition panel

    • C.

      Furniture

    • D.

      Curtain wall

    Correct Answer
    B. Partition panel
    Explanation
    Polycarbonate is a versatile material that is commonly used for various applications due to its durability and transparency. While it is commonly used for roofing, it is also frequently used as a partition panel. Partition panels made from polycarbonate provide a modern and sleek look while creating separate spaces within a larger area. They are often used in offices, commercial buildings, and even residential spaces to create privacy and divide different areas without completely blocking off the light.

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  • 31. 

    Gutter and roof accessories are?

    • A.

      Thicker than roof

    • B.

      Thinner than roof

    • C.

      Equal in thickness

    • D.

      Varies, but thinner than roof

    Correct Answer
    A. Thicker than roof
    Explanation
    Gutter and roof accessories are thicker than the roof because they are designed to provide additional support and protection to the roof. These accessories, such as gutters, downspouts, and flashing, are typically made from durable materials like metal or PVC, which need to be thicker in order to withstand the elements and prevent leaks or damage. The roof itself may have different layers or materials, but the accessories are specifically designed to be thicker to ensure their functionality and longevity.

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  • 32. 

    Minimum side lapping for corrugated GI roofing?

    • A.

      1 1/2"

    • B.

      2"

    • C.

      2 1/2"

    • D.

      3"

    Correct Answer
    A. 1 1/2"
    Explanation
    The minimum side lapping for corrugated GI roofing is 1 1/2". This means that when installing the roofing sheets, each sheet should overlap the adjacent sheet by at least 1 1/2" on the sides. This is important to ensure proper water drainage and prevent leaks.

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  • 33. 

    Minimum end lapping for corrugated GI roofing?

    • A.

      50 cm

    • B.

      40 cm

    • C.

      30 cm

    • D.

      25 cm

    Correct Answer
    C. 30 cm
    Explanation
    The minimum end lapping for corrugated GI roofing is 30 cm. This means that when installing the roofing sheets, the end of one sheet should overlap the end of the adjacent sheet by at least 30 cm. This helps to ensure a secure and watertight connection between the sheets, preventing any leakage or damage from occurring.

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  • 34. 

    Most common roofing size?

    • A.

      6m-12m

    • B.

      6m-10m

    • C.

      6m-20m

    • D.

      5m-10m

    Correct Answer
    A. 6m-12m
    Explanation
    The most common roofing size is typically between 6m-12m. This range is commonly used in construction and is suitable for most residential and commercial buildings. It provides a good balance between cost, practicality, and aesthetics. Sizes such as 6m-10m, 6m-20m, and 5m-10m are less common and may be used for specific purposes or in unique circumstances.

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  • 35. 

    What type of roofing is oven baked and is water proof?

    • A.

      Tile brick roofing

    • B.

      Tegula

    • C.

      Long span roofing

    • D.

      Clay roofing

    Correct Answer
    B. Tegula
    Explanation
    Tegula is the correct answer because it is a type of roofing that is oven baked and waterproof. Tegula roofs are made from clay or concrete tiles that are fired in a kiln, making them durable and resistant to water. This type of roofing is commonly used in Mediterranean and Spanish-style architecture.

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  • 36. 

    Which among the given is the best insulating material?

    • A.

      Felt paper

    • B.

      Kraft paper

    • C.

      Eden foil

    • D.

      PP foam

    Correct Answer
    B. Kraft paper
    Explanation
    Kraft paper is the best insulating material among the given options. Kraft paper is a type of paper that is made from wood pulp, and it has a high resistance to heat transfer. It is commonly used as an insulating material in various applications due to its ability to trap air and prevent heat from passing through. Additionally, kraft paper is also known for its durability and strength, making it an ideal choice for insulation purposes.

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  • 37. 

    What is the standard width of a corrugated GI sheet?

    • A.

      60

    • B.

      70

    • C.

      80

    • D.

      90

    Correct Answer
    C. 80
    Explanation
    The standard width of a corrugated GI sheet is 80.

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  • 38. 

    What is a system of triangles used to support of roof?

    • A.

      Gusset plate and rivets

    • B.

      Trapezoidal roofing system

    • C.

      Truss

    • D.

      Triangular purlins

    Correct Answer
    C. Truss
    Explanation
    A truss is a system of triangles used to support a roof. Triangles are the strongest shape and provide stability and strength to the structure. Trusses are commonly made of steel or wood and are designed to distribute the weight of the roof evenly, preventing sagging or collapse. They are often used in larger buildings or structures where a strong and reliable support system is required.

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  • 39. 

    What type of nails is use for asphalt shingles?

    • A.

      Finishing nails

    • B.

      Elastomeric

    • C.

      Thumb tacks

    • D.

      Staple wires

    Correct Answer
    D. Staple wires
    Explanation
    Staple wires are the type of nails used for asphalt shingles. They are commonly used because they provide a secure and long-lasting attachment to the shingles. Staple wires are designed to penetrate the asphalt shingles and hold them in place, ensuring that they do not lift or become loose over time. This type of nail is specifically designed for use with asphalt shingles and is the preferred choice for roofing installations.

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  • 40. 

    What material is used for purlins for GI roofing?

    • A.

      Light gauge metal channel

    • B.

      Standard steel channel

    • C.

      W-flange

    • D.

      Z- flange

    Correct Answer
    A. Light gauge metal channel
    Explanation
    Light gauge metal channel is used for purlins for GI roofing. Purlins are horizontal structural members that provide support for the roof deck and help to distribute the weight of the roof covering evenly. Light gauge metal channel is a common choice for purlins as it is lightweight, strong, and resistant to corrosion. It is also easy to install and cost-effective. Therefore, light gauge metal channel is the preferred material for purlins in GI roofing.

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  • 41. 

    What is used to support purlins on a wooden roof frame?

    • A.

      Cleat

    • B.

      Joist

    • C.

      Rafter

    • D.

      Top chord

    Correct Answer
    C. Rafter
    Explanation
    A rafter is a structural member that is used to support purlins on a wooden roof frame. Purlins are horizontal beams that are placed perpendicular to the rafters and provide support for the roof covering. The rafters are typically sloped and run from the ridge of the roof down to the eaves, supporting the weight of the roof and transferring it to the walls or other supporting structures. Therefore, the correct answer is rafter.

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  • 42. 

    What is used for aluminum roofing consisting a pin head and a long shank?

    • A.

      Blind rivet

    • B.

      Pin rivet

    • C.

      Bolt

    • D.

      Tekscrew

    Correct Answer
    A. Blind rivet
    Explanation
    A blind rivet is used for aluminum roofing and consists of a pin head and a long shank. It is a type of fastener that is inserted into pre-drilled holes and then secured by pulling the pin, which causes the shank to expand and create a tight connection. This type of rivet is commonly used in construction and manufacturing industries for joining materials together in a secure and efficient manner.

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  • 43. 

    What kind of roofing is made of thermoplastic material and has strips which under the suns heat will melt and cause it to bind as one roof?

    • A.

      Sheating

    • B.

      Polycarbonate

    • C.

      Metal shakes

    • D.

      Asphalt shingles

    Correct Answer
    D. Asphalt shingles
    Explanation
    Asphalt shingles are made of thermoplastic material and have strips that, when exposed to the sun's heat, will melt and bind the shingles together, creating a solid roof. This characteristic allows the shingles to effectively protect the building from water and other elements.

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  • 44. 

    Water proofing on roof deck fails and there is seepage. What s not the reason it failed?

    • A.

      Corners were not properly sealed

    • B.

      It was not properly protected by flashing

    • C.

      Water proofing installation defects

    • D.

      Melts in the rain

    Correct Answer
    D. Melts in the rain
    Explanation
    The reason the water proofing on the roof deck failed is not because it melts in the rain. Melting in the rain is not a factor that contributes to the failure of water proofing. The other options, such as corners not being properly sealed, lack of proper protection by flashing, and installation defects, are more likely reasons for the failure.

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  • 45. 

    Which has a minimum of 5 years warranty?

    • A.

      Roof deck water proofing

    • B.

      Pool membrane water proofing

    • C.

      Asphalt Shingles

    • D.

      Granite flooring

    Correct Answer
    A. Roof deck water proofing
    Explanation
    Roof deck water proofing has a minimum of 5 years warranty because it is a specialized waterproofing system designed to protect the roof deck from water damage. This type of waterproofing is typically applied to flat or low-sloped roofs and is made to withstand heavy rain, snow, and other weather conditions. The minimum 5-year warranty ensures that the roof deck will remain protected from water infiltration for at least that period of time.

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  • 46. 

    Where should be the water proofing be installed?

    • A.

      In between the slab and toppings

    • B.

      Above FFL

    • C.

      Under the slab

    • D.

      Above the floor topping

    Correct Answer
    A. In between the slab and toppings
    Explanation
    The waterproofing should be installed in between the slab and toppings to provide a protective layer that prevents water from seeping into the structure. This location ensures that any water that may penetrate the toppings does not reach the slab, protecting the underlying structure from water damage. Installing the waterproofing above FFL or above the floor topping would not effectively prevent water infiltration, while installing it under the slab would make it difficult to access and maintain.

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  • 47. 

    Common water proofing for roof deck?

    • A.

      Polymer

    • B.

      Sahara

    • C.

      4.5 mm plybond

    • D.

      Elastomeric

    Correct Answer
    D. Elastomeric
    Explanation
    Elastomeric is the correct answer because it is a common waterproofing material used for roof decks. Elastomeric coatings are flexible and can expand and contract with the movement of the roof, making them ideal for areas that experience temperature changes and structural movement. These coatings create a seamless, waterproof barrier that protects the roof deck from water damage and leaks.

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  • 48. 

    What area is not recommended to use for capillary membrane waterproofing?

    • A.

      Cistern

    • B.

      2nd floor balcony

    • C.

      Escalator and elevator pit

    • D.

      Storage tank

    Correct Answer
    C. Escalator and elevator pit
    Explanation
    Escalator and elevator pits are not recommended for capillary membrane waterproofing because these areas are constantly exposed to mechanical stress and movement. The constant movement of the escalators and elevators can cause the waterproofing membrane to crack or deteriorate, leading to water leakage and damage. Therefore, it is not advisable to use capillary membrane waterproofing in these areas to ensure the longevity and effectiveness of the waterproofing system.

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  • 49. 

    What is the main reason why waterproofing and paint sometimes do not adhere to the surface?

    • A.

      Quality of the paint and waterproofing

    • B.

      Surface preparation

    • C.

      Temperature and weather condition

    • D.

      Procedure and application

    Correct Answer
    B. Surface preparation
    Explanation
    Surface preparation is the main reason why waterproofing and paint sometimes do not adhere to the surface. Proper surface preparation is crucial for the adhesion of paint and waterproofing materials. If the surface is not properly cleaned, sanded, or primed, the paint or waterproofing may not be able to bond effectively with the surface, leading to poor adhesion and potential failure. The surface needs to be free from dirt, dust, grease, and other contaminants to ensure a strong bond between the material and the surface.

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  • 50. 

    Water proofing can be rendered ineffective or damaged by what factor?

    • A.

      Acids and alkali transmitted by direct contact to waterproofing

    • B.

      Moisture

    • C.

      Temperature

    • D.

      Wet surface when applied

    Correct Answer
    A. Acids and alkali transmitted by direct contact to waterproofing
    Explanation
    Waterproofing is a protective coating or treatment that prevents water from penetrating a surface. However, it can be rendered ineffective or damaged when it comes into direct contact with acids and alkali. These substances have corrosive properties that can break down the waterproofing material, compromising its ability to keep water out. Therefore, acids and alkali transmitted by direct contact can undermine the effectiveness of waterproofing. Moisture, temperature, and applying waterproofing to a wet surface may affect its performance but are not specifically mentioned as factors that can render it ineffective or damaged.

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Quiz Review Timeline +

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

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 30, 2012
    Quiz Created by
    Kubo
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