When crystalline plastics are melted, the crystalline regions unfold, and the entire structure becomes ____.?

A. ?annealed
B. ?polarized
C. ?amorphous
D. ?uniaxial


Answer: C

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If one surface of a vertical air space is lined with aluminum foil, its R-value = 2.5. What will be its R-value if both surfaces of the air space are lined with aluminum foil?

What will be an ideal response?

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The concept of layered components that make up an operating system also originated with UNIX. Briefly describe this concept as it applies to UNIX/Linux systems.

What will be an ideal response?

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-1 × (-9 ) × (-12 ) =

A) 108 B) -120 C) -108 D) None of these

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Technician A says that outer tie rod ends should be replaced in pairs, even if only one is worn. Technician B says that inner tie rod ends should be replaced in pairs, even if only one is worn. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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