Left-hand threads are cut by: A) Using a standard tool and ...

[fahad]

Left-hand threads are cut by:
 
  A) Using a standard tool and setting the compound 29.5 degrees to the left of the operator
  B) Using a left hand threading die as these threads cannot be made on an ordinary lathe
  C) Turning the tool upside down, reversing the rotation of the spindle and moving the tool from left to right
  D) Making a right hand thread and turning it end for end

Question 2

The Rockwell Hardness tester measures:
 
  A) The rebound
  B) Wear
  C) The amount of pressure required to penetrate to major depth
  D) The depth of penetration

[Carissamariew]

Answer to Question 1

A

Answer to Question 2

D