Lubricants in plastics production are used for reducing friction and ____. ?
A. ?adding tensile strength
B. ?aiding emulsification
C. ?reducing heat
D. ?adding flexibility
Answer: B
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When current begins to flow through a(n) ____, a magnetic field expands around the ____.
A. conductor B. resistor C. inductor D. capacitor
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Heat travels from ________.
A) From outside the vehicle to inside the vehicle B) Cold to warmer C) Either from hot to cool or the other way depending on the weather D) Hot to cooler
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____ lumber is sawn lumber that has not been surfaced.
A. Rough B. Shop C. Yard D. Finish
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When performing GTAW, faster travel speeds prevent heat buildup and produce _____
a. weld defects b. oxidation c. puddles that are shallower d. more deeply penetrating puddles
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