Production Engineering


.The enlarging of an existing circular hole with a rotating single point tool is called

A. boring
B. drilling
C. reaming
D. internal turning


The infeed grinding is used to

A. produce tapers
B. grind shoulders and formed surfaces
C. grind long, slender shafts or bars
D. ail of these


  The tool life __________ as the cutting speed increases.

A. decreases
B. increases


  The advantage of a broaching operation is that

A. rate of production is very high
B. high accuracy and high class of surface finish is possible
C. roughing and finishing cuts are completed in one pass of the tool
D. all of the above


  Half nut is used to lock the lathe carriage to the lead screw for thread cutting.

A. True
B. False