The greatest advantage of the carburizing process is that: A) ...

[lb_gilbert]

The greatest advantage of the carburizing process is that:
 
  A) Low carbon steels can be made very hard on the surface only, while the core remains soft and tough
  B) A case hardened part can remain as hard as Rc60 all the way through without the need for tempering and still be just as hard as a similar tempered part
  C) Surface hardening can be done on any ferrous metal that contains sufficient carbon. Induction heating and flame hardening are two methods used. Lathe ways and gears are examples
  D) It makes possible the hardening of thicker sections completely through while using an oil quench to avoid distortion

Question 2

When turning to size predictably:
 
  A) A trial cut is taken and a spring caliper is set to the size using a rule. This is sufficiently accurate for finishing most outside diameters.
  B) A short skim cut is taken and measured. The cross slide feed collar is zeroed and the roughing cut depth is dialed. A trial cut is taken and the crossfeed screw backed off after noting the setting. The diameter is checked, the tool is returned to the start position and the dial reset to its former position. The cut is taken. This procedure is continued to finish size.
  C) A short skim cut is taken and measured. The cross feed collar is zeroed, and the roughing cut is dialed. A trial cut is taken and checked and the cut is taken. This procedure is continued to finish size.
  D) A trial cut is taken that looks like the approximate diameter or slightly over and it is checked with a micrometer. This procedure is continued to finish the part.

[KKcool]

Answer to Question 1

A

Answer to Question 2

C