Groover Fundamentals Modern Manufacturing 4th solman

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Solutions for Fundamentals of Modern Manufacturing, 4/e (published by Wiley)  MPGroover 2010

Review Questions

What are the differences between primary, secondary, and tertiary industries? Give an example of
each category.
Answer. A primary industry is one that cultivates and exploits natural resources, such as
agriculture or mining. A secondary industry takes the outputs of primary industries and converts
them to consumer and capital goods. Examples of secondary industries are textiles and electronics.
A tertiary industry is in the service sector of the economy. Examples of tertiary industries are
banking and education.


What is a capital good? Provide an example.
Answer. Capital goods are those purchased by companies to produce goods or provide services.
Examples of capital goods are aircraft and construction equipment.


How are product variety and production quantity related when comparing typical factories?
Answer. Generally production quantity is inversely related to product variety. A factory that
produces a large variety of products will produce a smaller quantity of each. A company that
produces a single product will produce a large quantity.


Define manufacturing capability.
Answer. Manufacturing capability refers to the technical and physical limitations of a
manufacturing firm and each of its plants. Three categories of capability mentioned in the text are
(1) technological processing capability, (2) physical size and weight, and (3) production capacity.


Name the three basic categories of materials.
Answer. The three basic categories of engineering materials are (1) metals, (2) ceramics, and (3)
polymers. A fourth category, composites, is a non-homogeneous mixture of the other types and
therefore is not a basic category.


How does a shaping process differ from a surface processing operation?
Answer. A shaping process changes the geometry of the work material (machining or forging). A
surface processing operation does not alter the geometry, but instead alters surface of the work
(painting or plating).


What are two subclasses of assembly processes? Provide an example process for each subclass.
Answer. The two subclasses of assembly processes are (1) permanent joining and (2) mechanical
fastening. Examples of permanent joining include welding or adhesive bonding. Examples of
mechanical fastening include threaded fasteners, such as nuts and bolts, and rivets.


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