Production Engineer Question:
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Internal gears can be made by:

A. hobbing
B. shaping with pinion cutter
C. shaping with rack cutter
D. milling

Answer:

B. shaping with pinion cutter

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When the cutting edge of the tool is dull, then during machining:

A. continuous chips are formed
B. discontinuous chips are formed
C. continuous chips with built-up edge are formed
D. no chips are formed
Cast iron during machining produces

A. continuous chips
B. discontinuous chips
C. continuous chips with built-up-edge
D. none of these