Answer the following statement(s) true (T) or false (F)
1. A PLC system offers many advantages over a relay-based control system except that it can be difficult to implement.
2. Volatile memory will lose its programmed contents if operating power is removed or lost.
3. In industrial applications where the PLC will replace the relay logic circuit, the operator controls and process switches will generally remain as they are wired.
4. Manual motor starters are used extensively on industrial machines.
5. In thermal protected overload relays, the thermal element is connected mechanically to a normally open contact.
1. False
2. True
3. True
4. False
5. False
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