A disadvantage of Numerical Control (NC) is:

1.	A disadvantage of Numerical Control (NC) is:
A.	the computer is not reliable
B.	the tape and tape reader are not reliable
C.	one operator is needed for each machine.
D.	the machine tool can easily overheat
E.	None of the above
Answer» C. one operator is needed for each machine.

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A disadvantage of Numerical Control (NC) is:

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