?Chemical resistance tests of selected plastics shows that ____ is only slightly affected by strong acids.
A. ?polyamide
B. ?acetal
C. ?melamine
D. ?acrylic
Answer: C
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In certain cases, cutting and bending members to create joints for structural shapes may be more economical, even though more cutting and welding are required.
Answer the following statement true (T) or false (F)
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How can you check a knife or chisel for sharpness?
What will be an ideal response?
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Describe the land capabilities classification system and how this system divides land into classes
What will be an ideal response?
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What type of open-close valve is used to completely close a line so piping or equipment can be isolated for repair, inspection, or replacement?
A. gate B. ball C. butterfly D. plug
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