Automation System
A flip-flop:

is a combinational logic device
(a) and (c)
is a sequential logic device
None of these
remembers what was previously stored in it

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Automation System
Numerical control:

is a method for controlling the operation of a machine by means of a set of instructions
is a method for producing an exact number of parts per hour
applies only to milling machines
None of these
All of these

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