An 80 percent depth 3/8-16 UNC thread tap drill size is ...

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An 80 percent depth 3/8-16 UNC thread tap drill size is specified. Which of the following is correct?
 
  A) (.65/16  2  8 ) .375 = .285 diameter B) 1/16 = -.375 = P  .625 - .234 inch diameter
  C) .375 - (.65/16  2  8 ) =.3120 diameter D) d = .375 - (.0625  .541  2 ) =.307 inch diameter

Question 2

Hardness is the ability to resist deformation and rupture when a load is applied.
 
  Indicate whether the statement is true or false

[wilsonbho]

Answer to Question 1

C

Answer to Question 2

FALSE

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TYSM

[bigcheese9]

Great answer, keep it coming