Taps used for lathe tapping are:
A) Spiral, plug and taper B) National fine, National coarse and taper
C) Taper, plug and bottoming D) Plug, bottoming and spiral point
Question 2
The heat treater maintains better control of the product by tempering:
A) Before the part gets completely down to the Mf temperature
B) In the furnace for a specified time
C) After the part has been hardened for 24 hours
D) By the color method