MATCHING Match the Word or Phrase with Its Correct Meaning

question 26

Multiple Choice

MATCHING
Match the word or phrase with its correct meaning.
-A machine tool use for cutting internal threads.

• A)axis
• B)body
• C)chamfer
• D)root
• E)tap
• F)pitch
• G)die
• H)crest
• I)classes of threads
• J)depth of thread
• K)lead
• L)included angle
• M)left-hand thread
• N)major diameter
• O)minor diameter
• P)thread
• Q)right-hand thread
• R)tap drill

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Definitions:

pKa

A measure of the acidity of a hydrogen atom in a molecule, indicating the strength of an acid in solution.

Increasing Acidity

A condition or process where the concentration of hydrogen ions in a solution increases, often affecting the substance's pH.

Weak Acids

Acids that only partially dissociate in solution, resulting in a weak conductivity and not completely donating their hydrogen ions.

Strongest Acid

Refers to the acid with the lowest pH or the highest propensity to donate a proton in a reaction.