6.
The recommended procedure in removing a patch cord from a jack is to
pull on the
a.
plug with a quick, deliberate motion.
b.
plug, using a gentle, twisting motion.
c.
flexible cord with a quick, sharp pull.
d.
plug at the dangling end of the patch cord.
SITUATION
Assume that you are assigned to a technical control center which
contains Distortion Analyzer System DAS10. You are directed to study
it principles of operation and to become familiar with the controls
and their use.
Exercises 7 through 12 are based on this situation.
7.
The data analyzer operates on the principle of comparing accurately
timed intervals with the transitions within received characters. The
timing clock used by the DAS10 system is located in the
a.
b.
data analyzer.
c.
data transmitter.
d.
external time base generator.
8.
The data analyzer is needed in three of the four generalized tests
that the DAS10 can perform.
The three tests that use the data
analyzer are analysis of the
a.
teletypewriter, telegraph carrier channel, and overall system.
b.
VF line, teletypewriter, and telegraph carrier channel.
c.
telegraph carrier channel, overall system, and VF line.
d.
overall system, VF line, and teletypewriter.
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