In GD&T, the ____ reference frame is a theoretical system made up of three mutually perpendicular planes established by real features on the object.
A. Cartesian
B. datum
C. virtual
D. trilateral
Answer: B
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Common injuries suffered by workers during assembly/disassembly operations are _____.
a. electrocutions b. heat stroke and exhaustion c. pinching and crushing d. exposure to hazardous substances
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To prevent bending and other damages, open-web steel joists should be stored _____
a. on their bottom chords b. lying on one side c. standing on end d. on their top chords
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Young animals are susceptible to many diseases.
Answer the following statement true (T) or false (F)
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Determine the average, variance, and standard deviation for the following parts. The measured values are given in the accompanying table.
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