Automation System
One advantage of a PC in industrial control is that it:

All of these
has a reliable long life compared to relay logic
is very difficult for the inexperienced programmer to understand
is unreliable because there are no moving parts
None of these

ANSWER DOWNLOAD EXAMIANS APP

Automation System
A dc servo motor:

uses a tachometer for speed feedback
None of these
uses a variable dc voltage for speed control
can provide precise position control
All of these

ANSWER DOWNLOAD EXAMIANS APP