Trivia Quiz On IICRC Certification Test!

Wool is commonly obtained from sheep. Sheep are known for their thick coat of wool, which is sheared off to obtain the fleece. Other animals like goats and alpacas also produce wool, but sheep are the most common source of wool.

Tufted is the correct answer because it refers to a method of construction where yarns are sewn into the back. This technique creates a looped or cut pile surface, commonly used in carpets and rugs. The yarns are stitched through a backing material to create tufts, resulting in a textured and durable finished product. This method is widely used due to its versatility and ability to create various patterns and designs.

The given statement suggests that construction staple fibers are punched through the back using a needle, and this process is referred to as needle punching. This technique involves interlocking the fibers together to create a stable and durable fabric. The use of latex in this process may indicate that it is used as a binding agent to secure the fibers in place. The term "saxony" mentioned in the question is not relevant to the given statement.

The two most common natural fibers are wool and cotton. Wool is derived from the fleece of sheep and is known for its warmth and insulation properties. Cotton, on the other hand, comes from the cotton plant and is widely used in the textile industry due to its softness, breathability, and durability. Both wool and cotton have been used for centuries in various applications, making them the most commonly used natural fibers.

Over-wetting, improper drying, and high alkalinity can cause cellulosic browning on plant fibers. This condition refers to the discoloration or browning of the cellulose fibers due to these factors. It is a result of chemical reactions that occur when the fibers are exposed to excessive moisture, inadequate drying, or alkaline substances. This can lead to a degradation of the cellulose structure, resulting in the brown discoloration.

When subjected to a burn test, protein fibers will ignite due to their combustible nature. However, unlike synthetic fibers, protein fibers have a self-extinguishing property. This means that once they catch fire, they will stop burning on their own without the need for external intervention. This is due to the natural composition of protein fibers, which lack the synthetic additives that sustain combustion. Therefore, the protein fibers will self-extinguish after igniting, making this the correct answer.

The correct answer is velvet because it is a type of cut pile carpet with a smooth appearance. Cut pile refers to the way the carpet fibers are cut evenly, creating a soft and plush texture. Velvet carpets have a luxurious and elegant look, making them a popular choice for formal settings. The absence of twist in the fibers gives the carpet a smooth and uniform appearance.

Natural fibers require longer drying times because they are absorbent. This means that they have the ability to soak up and retain moisture. When these fibers get wet, they absorb the water, which then needs to evaporate for the fibers to dry. This process takes longer compared to fibers that are not absorbent.

The given answer "berber" is correct because the style mentioned in the question, "with large speckled yarns," is characteristic of berber carpets. Berber carpets are known for their looped pile construction and often have a textured appearance due to the use of different colored yarns. This style is popular for its durability and ability to hide dirt and stains.

Wool's of New Zealand suggests that delicate natural wool fibres should be cleaned within a pH range of 4.5 - 8.5. This pH range ensures that the cleaning solution is not too acidic or too alkaline, which could potentially damage the wool fibres. Keeping the pH within this range helps to maintain the integrity and quality of the wool, allowing it to be cleaned effectively without causing any harm.

Fibres that come from plants are called cellulosic because they are made up of cellulose, which is the main component of the cell walls in plant cells. Jute is a type of cellulosic fibre, but it is not the general term for all plant fibres. Cuticle is a waxy layer on the surface of leaves and stems, not a type of plant fibre. Protein is a macromolecule found in living organisms, not a type of plant fibre. Synthetic fibres are man-made and not derived from plants.

Fibres that are taken from animals or animal by-products are called protein. This is because animal fibres, such as wool, silk, and cashmere, are primarily composed of proteins. These proteins give these fibres unique properties, such as warmth, softness, and durability. Animal fibres are highly valued in the textile industry for their natural and luxurious characteristics.

Synthetic fibres should be maintenance cleaned with a pH of less than 10. This is because synthetic fibres are sensitive to high pH levels, which can cause damage to the fibers and result in color fading or fabric deterioration. Using a pH of less than 10 ensures that the cleaning solution is gentle enough to effectively remove dirt and stains without causing harm to the synthetic fibres.

An unbroken length of extruded fiber is referred to as a continuous filament. This means that the fiber is produced without any breaks or interruptions, resulting in a long, continuous strand. This type of filament is commonly used in various industries such as textiles and manufacturing, where a continuous length of fiber is required for processes like weaving or spinning.

fibers that are absorbent and req longer dry times

The advantage of Nylon 5th generation is that it resists acid dyes, which means that it can maintain its color even when exposed to acidic substances. Additionally, it is able to resist colorless dyes, which allows it to maintain its original color without any fading or discoloration.

Crimp is the characteristic that adds bulk and locks in twists. This refers to the natural waviness or crimpiness of fibers, which allows them to interlock and hold their shape when twisted or spun. This crimp provides volume and structure to textiles, making them more resilient and resistant to flattening or losing their shape.

Synthetic fibers have a high affinity for oil due to their chemical composition. The structure of synthetic fibers allows them to attract and hold onto oil molecules, making them resistant to water and soil. This property makes synthetic fibers useful in applications such as oil spills cleanup or oil-absorbent materials.

Wool dates back to over 2000 b.c. This means that the use of wool as a textile material can be traced back to at least 2000 b.c. Wool has been used for various purposes throughout history, including clothing, blankets, and rugs. The durability, warmth, and insulating properties of wool have made it a popular choice for centuries. The answer of 2000 b.c. indicates that wool has a long and rich history, dating back thousands of years.

The first growth of wool is called lambs wool because it refers to the initial wool that is obtained from young lambs. Lambs wool is known for its softness and high quality, making it desirable for various products such as clothing and blankets. This term specifically distinguishes the wool obtained from lambs from the wool obtained from older sheep.

The correct answer is unitary backing. Unitary backing refers to a type of carpet backing that is made from a single layer of material, usually a synthetic material like latex or rubber. This type of backing provides extra strength and stability to the carpet, making it more durable and resistant to wear and tear. It also helps to prevent the carpet from stretching or shrinking over time. In contrast, needlepunched backing refers to a method of carpet construction where the fibers are mechanically interlocked using barbed needles. While needlepunched carpets can be durable, they typically do not have the same level of strength and stability as carpets with unitary backing.

Sodium hypochlorite is the correct answer because it is commonly known as chlorine bleach. It is a chemical compound that is used as a disinfectant and bleaching agent. Sodium hypochlorite is a strong oxidizing agent and is effective in killing bacteria, viruses, and fungi. It is commonly used for household cleaning and laundry purposes.

Nylon is the most popular residential carpet face fiber due to its durability, stain resistance, and ability to withstand heavy foot traffic. It is known for its resilience and long-lasting performance, making it a preferred choice for residential carpets. Nylon fibers also have excellent color retention and can be easily cleaned, making them suitable for households with pets or children. Overall, nylon offers a combination of strength, versatility, and aesthetic appeal, making it the top choice for residential carpeting.

The advantage of the first generation of nylon was that it was round, strong, durable, and shiny.

The advantage of the 4th generation of Nylon is its flourochemical protection against soil and spills. This means that the Nylon material has been treated with a special chemical that helps to repel dirt and liquids, making it easier to clean and maintain. This feature is particularly beneficial in areas where the material is likely to come into contact with dirt, stains, or spills, as it helps to prevent them from being absorbed into the fabric and causing permanent damage.

Eli Whitney is credited with inventing the process of ginning. Ginning refers to the process of removing the seeds from cotton fibers, which was a labor-intensive task before Whitney's invention. In 1793, Whitney invented the cotton gin, a machine that automated the process and significantly increased the efficiency of cotton production. This invention revolutionized the cotton industry and played a crucial role in the expansion of slavery in the United States.

Extrusion is the correct answer because synthetic fibers can be made through three different methods, one of which is extrusion. This process involves forcing a molten polymer through a spinneret to form continuous filaments, which are then cooled and solidified to create synthetic fibers. The other options, extraneous, extemporaneous, and cataclysmic, do not relate to the process of making synthetic fibers. "Hot drawn" is not a commonly used term in the context of synthetic fiber production.

Nylon is a synthetic polymer that is resistant to many chemicals, including most acids and bases. However, strong acids can break down the chemical bonds in nylon, causing it to dissolve. Therefore, strong acids are capable of dissolving nylon.

Olefin is the correct answer because it is a synthetic fiber that has low density and is hydrophobic, meaning it repels water. This property allows olefin fibers to float on water. Wool, cotton, rayon, and nylon are all natural or synthetic fibers that have higher densities and are hydrophilic, meaning they absorb water and would not float on water.

Silk is the strongest of all natural fibers. It is known for its exceptional tensile strength, which means it can withstand a significant amount of pulling force without breaking. Silk fibers are composed of protein molecules that are tightly packed together, giving it its strength. This property makes silk highly durable and resistant to tearing or stretching. Additionally, silk is also known for its smooth texture and lustrous appearance, making it a popular choice for various applications including clothing, upholstery, and even medical sutures.

The question asks for the three types of spinning. The answer includes "melt spun," "dry spun," and "wet spun." These three terms refer to different methods of spinning fibers into yarn. Melt spinning involves melting a polymer and extruding it through tiny holes to create fibers. Dry spinning involves dissolving a polymer in a solvent, then evaporating the solvent to form fibers. Wet spinning involves extruding a polymer solution into a coagulating bath to solidify the fibers. These three methods are commonly used in the textile industry to produce different types of yarns with specific properties.

Protein fibres can be dissolved in a 5.25% solution of bleach. Bleach contains sodium hypochlorite, which has the ability to break down and dissolve proteins. This is why bleach is commonly used as a stain remover for protein-based stains, such as blood or grass stains. The high concentration of bleach in the solution makes it effective in breaking down the protein fibres.

A spinneret is a device used in the production of fibers, such as those used in textiles. It contains small holes through which a liquid polymer is forced, forming the fibers. The size or shape of these holes can be adjusted, resulting in fibers that can be shiny, dull, or anywhere in between. Therefore, the correct answer is spinneret.

P.E.T stands for polyethylene terephthalate, which is a type of polyester. Polyester fibers can be made from recycled beverage containers, as P.E.T is a commonly used material for packaging beverages. Therefore, P.E.T is the correct answer as it is a fiber made from recycled beverage containers.

The correct answer is "fusion bonded". This answer is likely correct because the phrase "Yarns into thermal plastic" suggests that the process involves melting or fusing the yarns together. "Fusion bonded" refers to a method of bonding fibers together using heat and pressure, which aligns with the idea of melting or fusing the yarns into a thermal plastic material.

Nylon 3rd generation had the advantage of built-in anti-static properties. This means that it had the ability to prevent the buildup of static electricity, which can be a common issue with certain materials. This feature would have made the nylon more comfortable to wear or use, as it would reduce the likelihood of static shocks or clinginess.

Olefin floats on water because it has a specific gravity of less than 1. Specific gravity is a measure of the density of a substance compared to the density of water. A specific gravity of less than 1 means that the substance is less dense than water, causing it to float. Since olefin is less dense than water, it is buoyant and floats on its surface.

Cellulosic fibers are composed of two main parts - the epidermis and the lumen. The epidermis is the outer layer of the fiber, which provides protection and strength. The lumen is the inner part of the fiber, which contains the cellulose molecules and gives the fiber its structural integrity. These two parts work together to make cellulosic fibers suitable for various applications, such as textiles and paper production.

The correct answer is type 6 and type 6.6. These are two different types of Nylon. Nylon is a synthetic polymer that is known for its strength, durability, and resistance to abrasion. Type 6 Nylon is made from a polymer called polyamide 6, while type 6.6 Nylon is made from a polymer called polyamide 6.6. Both types have similar properties but may have slight differences in terms of strength, heat resistance, and other characteristics.

The correct answer is medulla, cuticle, and cortex. The medulla is the innermost layer of the wool fiber, providing insulation. The cuticle is the outermost layer, protecting the fiber from damage and providing a smooth surface. The cortex is the middle layer, containing the majority of the fiber's keratin protein, which gives wool its strength and elasticity.

Acid dye is the most commonly used dye type to dye nylon. Acid dyes are specifically designed to work on protein fibers like nylon, as they have good affinity and adherence to these types of fibers. These dyes are typically used in an acidic dye bath, where the acid helps to enhance the dye's absorption and fixation onto the nylon fibers. Acid dyes provide vibrant and long-lasting colors on nylon, making them the preferred choice for dyeing this particular material.

Staple fibers are short pieces of fiber that are blended and carded during the manufacturing process to create a cohesive and uniform yarn. Unlike continuous filament fibers, which are long and continuous, staple fibers are shorter and need to be processed in order to create a strong and durable yarn. Plied yarn, warp yarns, and jute are not specifically mentioned as requiring blending and carding during manufacturing, making staple fibers the most fitting answer.

The advantage of the second generation of Nylon is the presence of tri-lobial soil hiding yarns. These yarns have a unique shape that helps to conceal dirt and stains, making the Nylon material appear cleaner for longer periods of time.

Heat setting is the process used to lock in crimp and twist. It involves subjecting the fibers or yarns to high temperatures, causing them to undergo a permanent change in their structure. This helps to stabilize the crimp and twist, ensuring that they remain in place and do not unravel or flatten during subsequent use or processing. Heat setting is commonly used in the textile industry to improve the dimensional stability and appearance of fabrics and yarns.

Denier is a unit of measurement used to determine the thickness or fineness of fibers. It is commonly used in the textile industry to describe the weight or density of fabrics. The higher the denier number, the thicker and heavier the fiber or fabric. Therefore, denier is the correct answer to the question asking for the term used to describe the thickness of a fiber.

When we twist two or more yarns together, it is called "plied." Plying is a process in which multiple strands of yarn are twisted together to create a stronger and more durable yarn. This twisting action helps to secure the individual yarns together, preventing them from unraveling and creating a cohesive and stable yarn. Plied yarns are commonly used in knitting and weaving projects to create a more sturdy and resilient fabric.

The correct answer is "warp". In weaving, the yarns that run in the lengthwise direction are called the warp. These yarns are typically stronger and more tightly tensioned than the weft yarns, which run horizontally. The warp yarns are attached to the loom and are responsible for providing the structure and foundation of the fabric.

Acrylic is a man-made fiber that closely resembles wool in many ways. It has similar characteristics such as warmth, softness, and the ability to retain shape. Acrylic is also lightweight, durable, and resistant to wrinkles and shrinkage. It is often used as a substitute for wool in various applications, including clothing, blankets, and upholstery. Therefore, acrylic is the correct answer as it shares many similarities with wool.

The given correct answer is "saxony". Saxony is a style of carpet that is characterized by a tight cut pile and heat set twist. This style of carpet is known for its soft and luxurious feel, as well as its durability. The tight cut pile gives the carpet a smooth and even appearance, while the heat set twist adds resilience and helps prevent matting and crushing. Saxony carpets are popular in residential settings and provide a comfortable and elegant flooring option.

Olefin is considered the most adsorbent fiber because it has a high surface area and a large number of active sites for adsorption. It has a high affinity for water and other liquids, allowing it to absorb and retain moisture effectively. Additionally, olefin fibers have a porous structure that enhances their adsorption capacity. This makes olefin a popular choice for applications where moisture management and absorption are important, such as in outdoor clothing, sportswear, and diapers.