From Materials to Objects

General Knowledge · 10 questions

From Materials to Objects: selecting materials for specific functional properties in designed objects.

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1. Which metal suits cookware when higher thermal conductivity than aluminum is needed?

   1. Titanium
   2. Copper
   3. Steel
   4. Nickel
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   B) Copper

2. Which material suits aircraft structural parts requiring a high strength-to-weight ratio?

   1. Low-carbon steel
   2. Cast iron
   3. Carbon-fiber composite
   4. Lead
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   C) Carbon-fiber composite

3. Which elastomer is obtained from plant latex?

   1. Silicone rubber
   2. EPDM rubber
   3. Polyurethane elastomer
   4. Natural rubber
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   D) Natural rubber

4. Which polymer suits pipe linings operating near 200 °C and exposed to many corrosive chemicals?

   1. Polypropylene
   2. Polyethylene
   3. PTFE
   4. Polyvinyl chloride
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   C) PTFE

5. Which alloy is used to shield against static or low-frequency magnetic fields?

   1. Aluminum alloy
   2. Brass
   3. Mu-metal
   4. 304 stainless steel
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   C) Mu-metal

6. Which fiber type is commonly used in protective clothing that must resist heat and flames?

   1. Aramid
   2. Polyester
   3. Cotton
   4. Silk
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   A) Aramid

7. Which copper-tin-phosphorus alloy is used in spring electrical contacts?

   1. Brass
   2. Aluminum bronze
   3. Nickel silver
   4. Phosphor bronze
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   D) Phosphor bronze

8. Which anode material is the most widely used in conventional commercial lithium-ion cells?

   1. Silicon
   2. Graphite
   3. Lithium titanate
   4. Hard carbon
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   B) Graphite

9. Which alloy is chosen for very low thermal expansion in precision optical mounts?

   1. Invar alloy
   2. Titanium alloy
   3. 6061 aluminum
   4. Copper alloy
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   A) Invar alloy

10. Which material suits optical parts needing short-wavelength UV transmission and thermal stability?

    1. Fused silica
    2. Zirconia ceramic
    3. Soda-lime glass
    4. Acrylic
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    A) Fused silica