Carbon Filters, Ceramics and Micro Alloys

What is a nonmetal alloying element that is used as a deoxidizer in metals?

• Carbon

• Copper

• Lead

• Silicon

What is the process of steam activation used for in the production of carbon filters?

• Gasifying the carbonized material

• Removing impurities from the liquid steel

• Decarburizing the iron during its conversion to steel

Which of the following are defined as class of inorganic and nonmetallic solids that are subjected to high temperature in manufacture use?

• Alloys

• Carbon filters

• Ceramics

• Plastic containers

What is the main purpose of ceramics in various products?

• To provide strength and hardness properties

• To prevent the flow of electricity

• To remove impurities from the air

What is the most common way to combine metals into an alloy?

• By melting them, mixing them together, and then allowing them to solidify and cooling them back to room temperature

• By heating them in a vacuum degasser

• By adding tiny amounts of alloying agents to bring the metal to the desired composition

Which of the following is NOT a property of ceramics?

• High melting points

• Considerable durability

• Great hardness and strength

• High electrical and thermal conductivity

What is the combination of copper and tin?

• Brass

• Bronze

• Platinum

• Silver

Which of the following alloys is the mixture of copper and zinc?

• Brass

• Bronze

• Gold

• Steel

Which of the following is NOT an alloy?

• Amalgam

• Brass

• Nickel

• Steel

What is known as activated charcoal?

• Activated carbon

• Activated coal

• Carbon air filter

• Carbon filter