L1 Certificate In The Principles Of Window And Door Installation (Qcf) Unit 6

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Quizzes Created: 6 | Total Attempts: 1,443
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L1 Certificate In The Principles Of Window And Door Installation (Qcf) Unit 6 - Quiz

L/505/3156: Knowledge of Fixings and methods used in the installation of Windows and Doors


Questions and Answers
  • 1. 

    What are the MAXIMUM and MINIMUM distances for fixings from the corner on PVC-u frames to comply with accepted Codes of Practice?

    • A.

      150mm to 250mm from the corners

    • B.

      250mm to 500mm from the corners

    • C.

      150mm to 500mm from the corners

    • D.

      As near to corner as possible

    Correct Answer
    A. 150mm to 250mm from the corners
    Explanation
    The correct answer is 150mm to 250mm from the corners. This range of distances is specified in accepted Codes of Practice for fixings on PVC-u frames. It ensures that the fixings are securely attached to the frame while also allowing for some flexibility in positioning. Fixings placed too close to the corner may weaken the frame, while those placed too far may not provide sufficient support. Therefore, the recommended range of 150mm to 250mm strikes a balance between these factors to comply with industry standards.

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  • 2. 

    What are the MINIMUM distances fixings should penetrate into TIMBER and PLUGGED HOLES in Brick Block or Masonry?

    • A.

      10mm

    • B.

      50mm

    • C.

      25mm

    • D.

      75mm

    Correct Answer
    C. 25mm
    Explanation
    Fixings should penetrate a minimum distance of 25mm into timber and plugged holes in brick block or masonry. This is necessary to ensure that the fixings are securely anchored and can withstand the required load or force. A shorter penetration depth may not provide enough stability and could result in the fixings coming loose or failing altogether. Therefore, a minimum distance of 25mm is recommended to ensure the fixings are properly secured.

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  • 3. 

    What is the MAXIMUM distance between centres for intermediate fixings?

    • A.

      250mm

    • B.

      500mm

    • C.

      600mm

    • D.

      1000mm

    Correct Answer
    C. 600mm
    Explanation
    The maximum distance between centres for intermediate fixings is 600mm. This means that when installing intermediate fixings, the furthest distance allowed between their centers is 600mm. Any distance greater than this would not be within the specified requirements.

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  • 4. 

    What is meant by the term BLOCK AND FIX?

    • A.

      Wedge and Fix the frame into position using correct fixings and foam if required

    • B.

      Use timber blocks ONLY to fix the frame

    • C.

      Use screws only to fix the frame

    • D.

      Use fixing blocks and foam to fix the frame

    Correct Answer
    A. Wedge and Fix the frame into position using correct fixings and foam if required
  • 5. 

    The term DIRECT FIXING means?

    • A.

      A fixing directly through the frame

    • B.

      A fixing using brackets

    • C.

      A fixing using polyurethane foam only

    • D.

      Using a combination of nails and screws

    Correct Answer
    A. A fixing directly through the frame
    Explanation
    Direct fixing refers to the method of securing or attaching something directly through the frame. This means that instead of using brackets, polyurethane foam, or a combination of nails and screws, the fixing is done by directly fastening or attaching the object to the frame itself. This method ensures a strong and secure connection between the object and the frame, providing stability and durability.

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  • 6. 

    What is the purpose of a THERMAL BREAK?

    • A.

      A material used between the inner and outer frames to prevent the temperature transfer through the frame and condensation on the inside frame

    • B.

      A flask to keep your drink hot or cold

    • C.

      A period of time where it is too hot to work

    • D.

      A process used to make the window water tight

    Correct Answer
    A. A material used between the inner and outer frames to prevent the temperature transfer through the frame and condensation on the inside frame
    Explanation
    A thermal break is a material that is used between the inner and outer frames of a structure to prevent the transfer of temperature through the frame. This helps to maintain a comfortable temperature inside the building and prevents condensation from forming on the inside frame. By creating a barrier between the two frames, the thermal break reduces heat loss or gain, improving energy efficiency and preventing moisture-related issues.

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  • 7. 

    What is the purpose of PERIMETER SEALANTS?

    • A.

      To cover up mistakes

    • B.

      To ensure the gap between the frame and the brickwork looks nice and neat

    • C.

      To give the trim something to stick to

    • D.

      To ensure a water tight seal both inside and outside

    Correct Answer
    D. To ensure a water tight seal both inside and outside
    Explanation
    The purpose of perimeter sealants is to ensure a water tight seal both inside and outside. This means that the sealants are used to prevent water from entering or leaking through gaps or joints in a structure. By creating a tight seal, the sealants help to protect the interior of the structure from water damage and maintain the integrity of the building.

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  • 8. 

    When is it acceptable to use polyurethane foam as the ONLY method of securing the frame to the reveal?

    • A.

      When there is no power to use your drill

    • B.

      Never

    • C.

      When you have ran out of fixings

    • D.

      If the window is too small to direct fix

    Correct Answer
    B. Never
    Explanation
    Polyurethane foam should never be used as the only method of securing the frame to the reveal. This is because polyurethane foam is not a strong enough material to provide adequate support and stability for the frame. It is important to use appropriate fixings and methods, such as screws or nails, to ensure that the frame is securely attached to the reveal. Using polyurethane foam alone would not provide sufficient structural integrity and could result in the frame becoming loose or unstable over time.

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  • 9. 

    Which of the following are THREE types of silicone that can be used for sealing?

    • A.

      Low Modulus Acetoxy

    • B.

      High Modulus Acetoxy

    • C.

      Low Modulus Neutral

    • D.

      Fixing Foam

    Correct Answer(s)
    A. Low Modulus Acetoxy
    B. High Modulus Acetoxy
    C. Low Modulus Neutral
    Explanation
    The correct answer is Low Modulus Acetoxy, High Modulus Acetoxy, and Low Modulus Neutral. These three types of silicone are commonly used for sealing purposes. Low Modulus Acetoxy silicone has good adhesion and flexibility, making it suitable for sealing applications. High Modulus Acetoxy silicone has higher strength and less flexibility, making it suitable for areas that require more rigidity. Low Modulus Neutral silicone is a non-acidic type that is commonly used for sealing sensitive materials such as natural stone and metal. Fixing Foam is not a type of silicone used for sealing.

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  • 10. 

    What does the abbreviation DPC stand for?

    • A.

      Damp Proof Course

    • B.

      Direct Preparation Course

    • C.

      Distribution Post Centre

    • D.

      Digital Photographic Camera

    Correct Answer
    A. Damp Proof Course
    Explanation
    The abbreviation DPC stands for Damp Proof Course. This refers to a layer of material, usually a waterproof membrane, that is installed in a building to prevent moisture from rising through the walls or floors. This helps to protect the building from dampness and potential damage caused by water.

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  • 11. 

    The photograph below shows which fixing method? 

    • A.

      Direct Fixing

    • B.

      In-Direct Fixing

    Correct Answer
    B. In-Direct Fixing
    Explanation
    The photograph depicts a fixing method where the object being fixed is not directly attached to the surface. Instead, there is an intermediate element or mechanism that connects the object to the surface. This is known as in-direct fixing.

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  • 12. 

    Post window installation what method would you use to clean down the window frame?

    • A.

      Wash down using a hose pipe with cold water

    • B.

      Use a jet wash to clean down the frame

    • C.

      Wash down with detergent and warm water

    • D.

      Use a dry clean cloth

    Correct Answer
    C. Wash down with detergent and warm water
    Explanation
    To clean down the window frame after installation, the best method would be to wash it down with detergent and warm water. This combination helps to effectively remove any dirt, dust, or residue that may have accumulated during the installation process. Using warm water helps to dissolve any stubborn stains or grime, while detergent aids in breaking down grease and other contaminants. This method ensures a thorough and deep cleaning of the window frame, leaving it clean and ready for use.

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  • 13. 

    What is meant by the term toe and heel?

    • A.

      A way of protecting your feet on site

    • B.

      A method of distributing the weight of a glass unit or panel on an opening sash or door

    • C.

      A disease you may catch if you don't wear the correct footwear on site

    • D.

      A transporting method used to move glass around the site

    Correct Answer
    B. A method of distributing the weight of a glass unit or panel on an opening sash or door
    Explanation
    Toe and heel refer to a method of distributing the weight of a glass unit or panel on an opening sash or door. This technique involves placing small support blocks, known as toe blocks, at the bottom of the glass unit or panel, and larger support blocks, known as heel blocks, at the top. By using toe and heel blocks, the weight of the glass is evenly distributed, reducing the risk of breakage or damage. This method is commonly used in construction and installation to ensure the stability and longevity of glass units or panels.

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  • 14. 

    The correct fixing distance from the corner of a frame is 600 mm?

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The correct fixing distance from the corner of a frame is not 600 mm. The question suggests that 600 mm is the correct distance, but the answer states that it is false. This means that the actual correct fixing distance from the corner of a frame is not 600 mm.

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  • 15. 

    Why is it important to keep drainage holes clear?

    • A.

      To allow the flow of air to come into the building

    • B.

      To stop the failure of double glazed units

    • C.

      To stop water leaking back into the house

    • D.

      So excess water can drain away out of the window system

    Correct Answer
    D. So excess water can drain away out of the window system
    Explanation
    It is important to keep drainage holes clear so that excess water can drain away out of the window system. If the drainage holes are blocked, water can accumulate and cause damage to the window system, leading to potential leaks and other issues. By keeping the drainage holes clear, any excess water can easily flow out, preventing water damage and ensuring the proper functioning of the window system.

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  • 16. 

    The picture below shows the correct way to measure an aperture? 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The picture below shows the correct way to measure an aperture. The explanation for this answer is not available.

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  • 17. 

    Frames wider than 1200mm should be fixed at the head?

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Frames wider than 1200mm should be fixed at the head because wider frames are more prone to sagging and warping over time. By fixing the frame at the head, it provides additional support and stability to prevent any potential issues. This ensures that the frame remains straight and secure, ultimately enhancing the overall durability and functionality of the frame.

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  • 18. 

    Prior to removing the old frame, what is the first thing you must do?

    • A.

      Put the kettle on

    • B.

      Read the newspaper

    • C.

      Check the aperture size against the new frame size

    • D.

      Dust sheet the property to protect the floor covering

    Correct Answer
    C. Check the aperture size against the new frame size
    Explanation
    Before removing the old frame, the first thing that must be done is to check the aperture size against the new frame size. This is important to ensure that the new frame will fit properly in the opening and avoid any complications or difficulties during the installation process. By checking the aperture size beforehand, it allows for proper planning and preparation, ensuring a smooth and successful frame replacement.

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