Module 3 - Bt 1 - Annayazu

A door bolt or barrel bolt is a manually operated sliding rod or bar that is attached to a door for locking it. It does not have a spring as part of its locking mechanism.

A template hinge is the correct answer because it is specifically designed to fit into a recess and align with the arrangement of holes in hollow metal doors and frames. This type of hinge is commonly used in construction and carpentry to ensure a precise and secure fit for doors and frames. It is often used as a guide or template for installing hinges in a consistent and accurate manner.

A spring hinge is a type of hinge that contains a coiled spring in its barrel. This spring allows the hinge to automatically close a door when it is opened. The spring provides tension and helps to control the movement of the door, ensuring that it closes smoothly and securely. This type of hinge is commonly used in applications where self-closing doors are desired, such as in commercial buildings or residential homes where fire safety regulations require doors to close automatically.

A gravity hinge is a type of hinge that is designed to close automatically due to the force of gravity. When the door or gate attached to the hinge is opened, the weight of the door causes the hinge to close on its own. This type of hinge is commonly used in situations where it is important for the door or gate to close securely and automatically, such as in outdoor gates or self-closing doors. The other options listed are different types of hinges, but they do not operate based on gravity.

A friction catch is a type of cabinet catch that is held in the engaged position by friction when it engages a strike. This means that once the catch is closed, it will stay in place due to the resistance created by the friction between the catch and the strike. Unlike other types of catches, such as magnetic pressure catch, bullet or ball catch, and spring-actuated ball catch, a friction catch does not rely on external forces or mechanisms to stay engaged.

A foot bolt is a type of door bolt that is fixed at the bottom of a door and can be operated by foot. When the door is unbolted, the bolt is held up by a spring. This type of bolt is convenient for easy and hands-free operation, as it allows the user to unlock or lock the door simply by using their foot.

The bedroom lockset is the correct answer because it is described as "simpler in design" compared to the entrance lockset. This suggests that the bedroom lockset is a more basic and straightforward lock, possibly lacking some of the additional features or complexity of the other options.

Face nailing is a type of nail construction where nails are driven through the face, or visible side, of a board or material. This method is commonly used when the nail heads need to be visible or when extra strength is required. It is often used in applications such as flooring, siding, or trim installation.

A loose-pin hinge is a type of hinge that has a removable pin, allowing the door to be easily unhung by separating the two leaves. This feature makes it convenient for removing or replacing doors without having to unscrew or disassemble the entire hinge. The loose-pin hinge provides flexibility and ease of use in door installation and maintenance.

The correct answer is "Slotted head." A slotted head screw is a type of screw with a single horizontal groove on the top, allowing it to be tightened or loosened using a flat-blade screwdriver. This type of screw head is one of the oldest and simplest designs, commonly used in various applications. It is easily recognizable by its straight, single slot, which provides good torque transfer but can also be prone to slipping if not properly aligned with the screwdriver.

An olive knuckle hinge is a type of hinge that has a shape resembling an olive or a knuckle. It is commonly used for heavy doors or gates as it provides strong support and durability. The design of the hinge allows for smooth and quiet movement of the door. The olive knuckle hinge is often used in traditional or antique-style doors and is known for its decorative appearance.

A toggle bolt is a type of fastener that is used to secure heavy objects to walls or ceilings. It consists of a bolt with a spring-loaded wing-like mechanism called a toggle that expands behind the wall when the bolt is inserted. This provides a strong anchor point for the bolt, allowing it to hold heavy loads. Toggle bolts are commonly used when there is no access to the back of the wall or when the wall material is not strong enough to support the weight of the object being attached.

Push plates and pull bars are used to operate a door that does not require automatic latching. They are commonly found on doors to commercial kitchens, where ease of access and convenience are important. Push plates are typically installed on the outside of the door and are pushed to open the door, while pull bars are installed on the inside and are pulled to open the door. These devices provide a simple and efficient way to open and close doors without the need for traditional doorknobs or handles.

An astragal is a vertical member used between double doors to seal the opening, act as a door stop, or provide extra security when the doors are closed. It helps to prevent drafts, noise, and light from passing through the gap between the doors. Astragals are commonly used in commercial buildings, such as hotels and office complexes, where double doors are frequently used. They are typically made of metal or wood and are installed on the inactive door of the double door set.

A piano hinge, also known as a continuous hinge, is the correct answer because it is a type of hinge that has the same length as the moving part to which it is applied. Unlike other types of hinges, which may have different lengths or sizes, a piano hinge runs the entire length of the door or lid it is attached to, providing continuous support and stability. This type of hinge is commonly used in applications such as piano lids, cabinet doors, and toolboxes.

A concealed hinge is a type of furniture hinge that is not visible when the door or cabinet is closed. It is designed to be hidden within the furniture, providing a clean and seamless look. This type of hinge is commonly used in modern and contemporary furniture designs where aesthetics are important. It allows for smooth and quiet opening and closing of doors without any visible hardware.

Standard brass butt hinges are commonly used for general furniture applications. They are made of brass, which is a durable and corrosion-resistant material. Butt hinges are designed to be flush-mounted and provide a smooth and stable pivot point for doors or lids. The standard size and design of brass butt hinges make them versatile and suitable for various furniture pieces. They are easy to install and offer reliable functionality, making them a popular choice in furniture construction.

Mortise locks are a type of lock that is commonly used in doors. They are installed within a pocket or "mortise" in the door, making them more secure and durable compared to other types of locks. The lock mechanism is housed within the door, with only the faceplate and keyhole visible on the edge of the door. Mortise locks typically have a latch and a deadbolt, providing both convenience and added security. They are often considered a higher-end option due to their craftsmanship and functionality.

A T-hinge, also known as a Tee hinge, is a type of surface mounted door hinge that is shaped like the letter T. One leaf of the hinge, called the strap, is fastened to the door, while the other leaf is fixed to the door post. This type of hinge is commonly used for furniture, allowing the door to swing open and closed smoothly.

A screw-in knob is a type of cabinet knob that can be attached to a cabinet door or drawer by screwing it in. This type of knob is commonly used in kitchen cabinets and provides a secure and stable grip for opening and closing the cabinets. It is different from a bolt-on knob, which requires a bolt to be attached to the cabinet, and a flush knob, which sits flush with the surface of the cabinet. A screw-in knob is a practical and convenient option for cabinet hardware installation.

An escutcheon is a protective plate that surrounds the keyhole of a door, a light switch, or other similar objects. It is designed to provide protection and cover any gaps or exposed areas around the keyhole. The escutcheon helps to enhance the appearance of the object and also prevents any damage or wear and tear to the surrounding area. It is commonly used in door hardware and electrical fixtures to ensure a clean and finished look while also providing functional benefits.

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A lock-washer is a type of washer that is used to prevent nuts and bolts from loosening due to vibration or rotation. It has a split design that creates tension when tightened, which helps to keep the fastener secure. This type of washer is commonly used in various applications, such as automotive, construction, and industrial settings. It is an essential component in ensuring the stability and integrity of assembled parts.

An invisible hinge is a type of hinge that is designed to be concealed when the door or cabinet is closed, giving a seamless and streamlined appearance. Unlike other hinges that are visible when the door is closed, the invisible hinge is hidden within the door and frame, making it an aesthetically pleasing option for modern and minimalist designs. It provides a clean and uninterrupted look to the overall structure, without any visible hardware.

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A full mortise hinge is a type of hinge that is commonly used on doors and doorjambs. It is designed to be mortised, or recessed, into both the door and the doorjamb, creating a flush and concealed installation. This type of hinge provides a clean and seamless look, as it is hidden when the door is closed. It is also known as a mortise hinge, referring to the mortise or recessed installation method.

The given scenario describes a situation where a single action of turning a knob or lever handle on the inside releases both the cylindrical lock and deadbolt. This indicates that the two locks are interconnected, meaning they are linked or connected in such a way that they both respond to the same action. Therefore, the correct answer is "interconnected lock."

A roofing nail is a type of nail that is specifically designed for securing roofing felt or shingles to a roof-deck or roof boards. It is characterized by its short length, barbed or ring shank, large flat head, and diamond point. It may also be galvanized or bright and often comes with a neoprene, lead, or plastic washer. The purpose of the barbed or ring shank is to provide extra grip and prevent the nail from coming loose. The flat head helps to secure the roofing material in place. Overall, the roofing nail is specifically designed for the task of roofing and is the correct answer in this context.

A wood screw is a type of fastener that is specifically designed for use with wood materials. It has a sharp point and coarse threads that allow it to easily penetrate and grip into wood. Wood screws are typically used to join pieces of wood together or to attach hardware to wood surfaces. They are made of steel or brass and come in various sizes and lengths. Unlike metal screws, which are designed for use with metal materials, wood screws have a tapered body and a wider head that provides better holding power in wood. Lag screws, lag bolts, and coach screws are similar to wood screws but are larger and have a hexagonal head. Tek screws, on the other hand, are specifically designed for use with metal and have a self-drilling point.

A metal screw is fastened by screwing it into metal surfaces. It is designed specifically for use with metal materials and has a sharp point and threads that allow it to securely grip the metal when it is screwed in. Metal screws are commonly used in construction, automotive, and manufacturing industries where metal components need to be joined together. They provide a strong and durable connection and are often made of materials such as stainless steel or hardened steel to resist corrosion and withstand heavy loads.

The given answer, "Lag Screw, Lag bolt, Coach Screw," refers to a type of screw that is commonly used in woodworking and construction. Lag screws, also known as lag bolts or coach screws, are large, heavy-duty screws with a hexagonal head and a pointed tip. They are designed to be used with a wrench or socket to securely fasten heavy materials such as wood or metal. Lag screws are often used in applications where a strong connection is required, such as attaching beams or framing members together.

The correct answer is "Philips head." A Philips head screw is a type of screw that has a cross-shaped recess in the head, allowing for easy insertion and removal with a Philips head screwdriver. This type of screw is commonly used in various applications, including electronics, woodworking, and automotive industries. It is designed to provide better torque and reduce the likelihood of the screwdriver slipping or camming out of the screw head.

The correct answer is "Allen head". Allen head refers to a type of screw head that is shaped like a hexagon, also known as a hex socket or hex key. It is designed to be used with an Allen wrench or hex key tool. This type of screw head provides a secure grip and is commonly used in machinery, furniture assembly, and automotive applications.

A piano hinge is a type of hinge that is long and narrow, resembling the keys of a piano. It is typically used in applications where a continuous hinge is needed, such as on the lid of a piano or a folding table. The design of the piano hinge allows for smooth and even movement along its entire length, making it ideal for heavy or large doors or lids. It is made up of two continuous plates that are connected by a pin, allowing for easy installation and durability.

A bored lock and latch, also known as a cylindrical lock, is installed by drilling holes through the face of the door and from the edge of the door to the other bored opening. This type of lock is commonly used in residential and commercial buildings and provides a secure way to lock doors. The term "bored" refers to the process of drilling or boring holes to install the lock. The lock and latch mechanism allows for easy operation and provides a reliable locking mechanism for doors.

Door stops and bumpers are small metal fabrications with rubber bumpers attached that are used to prevent a door from damaging adjacent construction. These devices are typically installed on the floor or wall near the door and act as a buffer to absorb the impact when the door is opened forcefully or swung back too far. They are commonly used in commercial buildings, homes, and other spaces to protect walls, furniture, and other surfaces from being scratched, dented, or marked by the door.

A lip strike is a projection from the side of a strike plate that the bolt of a lock strikes first when a door is closed. It is designed to protect the frame by providing a surface for the bolt to hit and prevent damage to the door or frame. The lip strike extends out from the side of the strike plate, ensuring that the bolt aligns properly with the strike plate and securely locks the door.

The correct answer is "Glass door hinge" because it is the only hinge listed that is specifically designed for glass doors. The other hinges mentioned, such as concealed hinge, pivot hinge, and T-hinge, are not typically used for glass doors.

The correct answer is "Glass shelf support" because it is the only option that specifically mentions supporting glass shelves. The other options do not provide any indication of the type of shelf they support.

A bolt-on knob is a type of cabinet knob that is attached to the cabinet using bolts or screws. Unlike a screw-in knob, which is directly screwed into the cabinet, a bolt-on knob requires the use of bolts or screws to secure it in place. This type of knob is often used for cabinets that require a more secure and sturdy attachment.

A flush ring is a type of cabinet knob that is designed to be mounted flush with the surface of the cabinet. It typically has a ring-shaped design that allows for easy gripping and pulling. This type of knob is often used on cabinets where a more minimalistic and sleek look is desired, as it does not protrude from the surface of the cabinet like other types of knobs.

A chain door fastener is a device that is attached to a door and its jamb. It consists of a chain that limits the door opening to its length. This allows the door to be partially opened while still providing security and preventing it from fully swinging open. The chain door fastener is commonly used in homes, hotels, and other buildings to control the degree to which a door can be opened, providing a convenient way to allow airflow or communication while maintaining some level of security.

End nailing is a type of nail construction where nails are driven into the end grain of the wood. This method is commonly used when joining two pieces of wood at a right angle or when securing the end of a board to another surface. End nailing provides a strong and secure connection, but it may not be as aesthetically pleasing as other types of nail construction.

Blind nailing is a type of nail construction where nails are driven into the material at an angle, so that they are hidden from view once the material is installed. This method is commonly used in woodworking and carpentry to create a clean and seamless finish, without any visible nail heads. It is particularly useful for installing flooring, siding, or paneling, as it provides a more aesthetically pleasing result.

A strap hinge is a type of hinge that consists of a long, flat metal strip with holes or slots for attaching to a door or gate and a pivot point that allows the door to swing open and closed. This type of hinge is commonly used for heavy-duty applications, such as on barn doors or gates, where strength and stability are important. The strap hinge gets its name from its resemblance to a metal strap that wraps around the edge of the door or gate.

A dovetail hinge is a type of hinge that is designed with interlocking wedge-shaped components, resembling the shape of a dovetail joint in woodworking. This type of hinge is known for its strength and durability, as the interlocking design provides a secure connection between the two parts it is attached to. Dovetail hinges are commonly used in cabinetry and furniture, as they allow for smooth and stable movement of doors or lids. They are also aesthetically pleasing, as the visible dovetail shape adds a decorative element to the hinge.

A rising hinge is a type of hinge that causes a door to rise slightly when it is opened. This can be useful in situations where there is uneven flooring or carpeting, as it helps to prevent the door from dragging or scraping on the ground. The rising hinge allows the door to clear any obstacles or uneven surfaces, ensuring smooth and easy operation.

A strike plate is a metal plate or box that is set in a doorjamb and is either pierced or recessed to receive the bolt or latch of a lock. It is fixed on a door and provides a secure point of contact for the lock mechanism. The strike plate helps to ensure that the door remains securely closed when the lock is engaged, preventing unauthorized access.

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Automatic Door Bottoms are devices that are mortised or surface applied to the bottom of the door to provide a sound or light seal. When the door is open, the seal is up, and as the door is closed, a plunger in the device is activated, causing the seal to drop and create a tight seal at the bottom of the door. This helps to prevent drafts, noise, and light from entering or exiting the room when the door is closed.