When would it be appropriate to tell the customer that the ...

[notis]

When would it be appropriate to tell the customer that the previous technician messed up their system when performing the last service call?
 
  What will be an ideal response?

Question 2

When the PLC processor is in the PROGRAM mode, ________.
 
  A) it is impossible to tell whether the processor is executing its scan cycle because you are not on line
  B) it executes its scan cycle
  C) it does not execute its scan cycle

[wergv]

Answer to Question 1

Never

Answer to Question 2

C