Q1) When a design tolerance is set equal to the natural tolerance limits for the
ID: 1719167 • Letter: Q
Question
Q1) When a design tolerance is set equal to the natural tolerance limits for the process making the part, it means that the tolerance is equal to the process capability for the process: (a) true or (b) false?
Q2) A polymer matrix composite is a composite material consisting of a polymer embedded with a reinforcing phase such as fibers or powders: (a) true or (b) false?
Q3) Of the three open mold processes for polymer matrix composites described in the text, hand lay-up is the least labor-intensive: (a) true or (b) false?
Q4)The advantage of using an open mold is which one of the following: (a) higher production rates are possible, (b) smoother surfaces are achieved on both sides of the molding, (c) the interior of the mold is accessible, or (d) the mold costs much less than if two matching molds were used?
Q5)Which of the following products are not typically made by hand lay-up open mold operations (two best answers): (a) boat hulls, (b) fishing poles, (c) large container tanks, (d) swimming pools, and (e) tennis rackets?
Q6)An apparatus that provides control over both temperature and pressure and is used to cure polymer matrix composites is called which one of the following: (a) autoclave, (b) curing furnace, (c) curing oven, or (d) pressure cooker?
Q7)The special tooling in filament winding that determines the shape of the filament-wound part is called which one of the following: (a) collet, (b) core, (c) fixture, (d) mandrel, (e) mold, or (f) pattern?
Q8)Pulforming is similar to pultrusion but is capable of producing a semicircular contour with altered cross sections at one or more locations along the length of the part: (a) true or (b) false?
Explanation / Answer
Q1:True
This situation represents a critical process that is capable of meeting specifications only if no shift in the process mean or a change in process variability takes place
Q2:True
Polymer Matrix Composites (PMC's) : Also known as FRP - Fibre Reinforced Polymers (or Plastics) - is a composite material made of a polymer matrix reinforced with fibres
Q3:.False
It is highly labour-intensive
Q4:d
the mold costs much less than if two matching molds were used
Q5:b&e
b:fishing poles & e:tennis rackets
Q6:a
autoclave
Q7:d
mandrel
Q8:True
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