Me 251 Chapter 8

What are the top three metals by quantity and usage? We often refer to these as the "big three" in engineering. (Please select three answers)

Aluminum Steel Copper

Brass is a combination of [ Select ] ; standard bronze is a combination of [ Select ] ; aluminum bronze is a combination of [ Select ]

Copper and Zinc Copper and Tin Copper Aluminum

Most pure zinc is used in a process called __________, which is used to provide a corrosion resistant coating to iron or steel.

Galvanizing

Which of the following are desirable properties of aluminum? (Select all that apply)

High Strength to Weight Ratio Corrosion Resistant

Which of the following are advantages of using titanium instead of steel? (Select all that apply)

Increased corrosion resistance Better high-temperature performance Better strength to weight ratio

Modern solder is made from a variety of materials, but traditional solder is composed of which two metals? (Select two options)

Lead Tin

Which of the following are important properties that make an alloy easier to process by forming it (i.e., bending or shaping it while solid)? (Select all that apply)

Low Yield Strength High Ductility

The __________ metals have the highest upper limit to their operating temperature; this category of metals includes niobium, molybdenum, tantalum, rhenium, and tungsten.

Refractory

Order the following materials from the highest density (i.e., heaviest) to lowest density (i.e., lightest).

Steel Titanium Aluminum Titanium

Which of the following are important properties that make an alloy easier to process using casting (i.e., melting the metal and pouring it into a mold)? (Select all that apply)

high fluidity low melting temperature