Explanation: Aluminum alloys are categorized into wrought alloys, cast alloys, heat-treatable, and non heat-treatable alloys. An example of each is 2.5% Mg, 0.25% Cr, and rest Al (wrought), 12% Si and rest Al (cast), 0.4-0.9% Mg, 0.3-0.7% Si, and rest Al (heat-treatable), and (0.8-1.5% Mn and rest Al (non heat-treatable).

Explanation: High conductivity copper contains over 99.9% copper, less than 0.005% of both lead and iron, along with low oxygen content. This copper finds its applications in the field of electrical engineering as it is a great conductor of electricity.

Explanation: Leaded brass is used for high-speed machining due to its excellent strength and heat resistance. It contains 59% Cu, 39% Zn, and 2% Pb. It is also known as free cutting brass.

Explanation: Leaded bronze is a Copper-base bearing alloy containing 75% Cu, 5% Sn, 18% Pb, and 2% Ni. They are less stronger than other bearing bronzes. However, they can sustain higher loads than white metals, at higher speeds.

Explanation: Magnalium, although considered an aluminum alloy, may contain over 50% magnesium and small amounts of nickel and tin. They are commonly used for engineering applications and pyrotechnics.

Explanation: Lubricants are used to remove parts from molds, make surfaces slippery, and prevent them from sticking to each other. They are also known as slip agents. Common lubricant additives are silicone, waxes, fatty acid amides, glycerides, petrolatum etc.

Explanation: Tungsten carbide (WC) belongs to the carbide class of engineering ceramics. It is used for cutting tools. Silicon carbide and boron carbide are used as abrasive, whereas vanadium carbide and tantalum carbide are used as wear-resistant materials. Chromium carbide is used as wear coating.

Explanation: A protective coating is generally defined as a layer of an inert substance which is applied to a material to prevent the chemical and electrochemical attack. These are classified into metallic, organic, and inorganic coatings.

Explanation: Permalloy is a soft magnet mainly used in electrical and electronic applications. It is composed of roughly 45% nickel. It has a high relative permeability of around 2700.

Explanation: Thermal insulation materials are classified as either organic or inorganic. Silk, wool, wood-pulp, and sawdust are a few examples of organic materials. Some common inorganic insulating materials are glass wool, slag, charcoal, and coke powder.

Explanation: Asbestos minerals are highly preferred in their fibrous form. They possess high strength, surface area, and good bonding characteristics. They are also resistant to heat, acids, and moisture.

Explanation: Some of the basic forming and fabrication techniques for rubber include compression molding, calendering, injection and transfer molding, and extrusion among others. Tumbling, trimming, and buffing are techniques of finishing this fabricated rubber.

Explanation: Hypoeutectoid steels are heated above the A3 line and then cooled in the furnace. Then it removed from the furnace and then cooled at room temperature. This results in coarse pearlite with excess ferrite.

Explanation: Materials in which the molecule is the basic structural solid and has an irregular structure are known as amorphous solid. Most amorphous materials are polymers such as plastics and rubbers. The most common amorphous material is glass.