Exhibit 31-1 MATCH a Term or Structure from the List Below to Below

question 25

Multiple Choice

Exhibit 31-1
MATCH a term or structure from the list below to each of the following definitions or names. Place the letter of the term or structure in the blank to the left of the definition or name which it describes.

-____ Small organic molecules that act as lubricants between polymer chains.

• A)BF₃ + H₂O
• B)elastomer
• C)chain-growth polymer
• D)AL(CH₂CH₃)₃ + TiCl₄
• G)thermoplastic
• H)homopolymer
• I)plasticizers
• J)thermosetting resins
• K)copolymers
• L)step-growth polymer
• M)Grubb's catalyst
• N)metallacycle

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Definitions:

Process Mean

The average of a set of process data points, indicating the central tendency of a process over a given period.

Assignable Variation

Assignable variation is variation in a process that can be traced to specific causes, such as machine malfunctions or operator errors, as opposed to random variation.

Average Run Length

The expected number of items inspected before a change is detected, commonly used in quality control.

False Alarm

An incorrect signal or detection indicating the presence of a condition or attribute that is not actually present.