In vacuum-bag processing, if a smooth surface is required on the exterior of a boat hull, a female mold would be selected, whereas a male mold would probably be selected for a ____. ?
A. ?sink
B. ?helicopter blade
C. ?automobile hood
D. ?bowling ball
Answer: A
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NEMA and IP classify pull and junction boxes according to the _____.
a. type of material used for construction b. size of cable allowed c. size of the box d. degree of protection from the elements they provide
The two basic systems of breeding in livestock production are _____ and _____
a. rotational breeding, inbreeding c. purebred breeding, inbreeding b. linebreeding, outcrossing d. straightbreeding, crossbreeding
This process, also known as impact grinding, is a process in which a high- frequency mechanical vibration is maintained in a tool designed to a specific shape.
a. electrochemical machining (ECM) b. electrodischarge machining (EDM) c. electron beam (EB) d. ultrasonic machining
Using the diagram, determine the minimum diameter for DIA B.
Fill in the blank(s) with the appropriate word(s).