AUTRY TECH DRAFTING/DESIGN

Read Chapter 12 on page 327. Answer the question below and enter it to OPEN LMS under 3M05W

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1. White iron is produced by a process called

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A. quenching.

B. chilling.

C. alloying.

D. super saturation.

E. manganese diffusion.

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2. Crankshafts would be a typical application for

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A. ductile iron. 

B. gray Iron.

C. white iron.

D. high-alloy iron.

E. malleable iron.

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3. Automotive engine blocks would be a typical application for

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A. ductile iron. 

B. gray Iron.

C. white iron.

D. high-alloy iron.

E. malleable iron.

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4. Rolling mill rolls would be a typical application for

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A. ductile iron. 

B. gray Iron.

C. white iron.

D. high-alloy iron.

E. malleable iron.

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5. High-alloy cast steels contain at least ____ nickel and/or chromium.

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A. 2% 

B. 3% 

C. 5%

D. 8%

E. 10%

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6. Which of the following additives does not increase the machinability of steel? 

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A. phosphorus

B. sulfur

C. lead

D. silicon

E. none of the above

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7. Copper is an example of a ____ metal.

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A. ferrous 

B. nonferrous

C. transitional 

D. heavy

E. light

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8. Powder metallurgy forms parts by

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A. deep drawing.

B. stamping.

C. forging.

D. extrusion.

E. compaction.

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9. The most common fabrication techniques applied to plastics

 

A. extrusion

B. forming 

C. casting 

D. molding

E. machining

 

10. Plastics that undergo an irreversible chemical reaction when heated are known as 

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A. thermosetting plastics.

B. thermoplastics.

C. superpolymers.

D. hybrid thermal plastics. 

E. conversion plastics.

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11. Elastomers are

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A. composite materials.

B. metalized plastics.

C. soft metals.

D. plasticlike substance.

E. runnerlike substance.

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12. the basic categories for rubber are

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A. opened and closed cell.

B. natural and synthetic. 

C. inert and reactive. 

D. sponge and sheet.

E. mechanical and cellular.

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