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

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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

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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

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Using the diagram, determine the minimum diameter for DIA B.

Fill in the blank(s) with the appropriate word(s).

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