To identify a hypothetical three-dimensional frame a(n) _____ is used.
A. feature control frame
B. projected tolerance zone modifier
C. all around symbol
D. datum reference frame
Answer: D
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Indicate whether the statement is true or false.
A runout is ____.
A. a characteristic of intersecting features, determined by locating the line of intersection between the mating parts B. the quality of a round in which a sharp corner has only a slight relief C. the finished product of the combination of an arc and a line D. formed when a cutting plane line has precedence over a centerline E. none of the above
By the year 2050, scientists predict there will be over _____ billion people in the world
a. 2 c. 11 b. 5 d. 50
A refrigeration system requiring a "fast pull down" would most likely use a thermostatic expansion valve with a liquid - thermal bulb.
Answer the following statement true (T) or false (F)