The following items will test your grasp of the material covered in this lesson. There is only one correct
answer for each item. When you complete the exercise, check your answers with the key that follows.
If you answer any item incorrectly, study again that part of the lesson which contains the portion
In a circuit switch diagram we find four digits. What do the first two digits represent?
None of the above
What do the second numbers on a circuit switch diagram represent?
Geographic area of operation
Subscriber phone number
Special feature codes
The theater ___________ makes the PR and SL assignments for each level of command.
Normally a corps or Theater Army will probably use only one PR
5. A subscriber in an automatic switchboard network must dial the seven-digit number to access a
distant switchboard subscriber.