PRACTICE EXERCISE
(Performance-Oriented)
In each of the following exercises, select the ONE answer that BEST
completes the statement or answers the question. Indicate your solution by
circling the letter opposite the correct answer in the subcourse booklet.
1.
The Guillemin line, shown in Figure 69, is a specially designed pulse-
forming network that employs inductive coupling between the loops of
wire. The reason for using inductive coupling is to
a.
increase the charge on the PFN.
b.
reduce the effects of reverse current.
c.
remove undesired oscillations from the PFN.
d.
decrease the time required to charge the PFN.
Figure 69.
Guillemin Pulse-Forming Line.
2.
The operation of a HYDROGEN THYRATRON differs from the operation of
conventional thyratrons in that the HYDROGEN THYRATRON
a.
has a long ionization time.
b.
conducts only when the grid voltage is zero.
c.
conducts
only
when
the
grid
is
positive
in
respect
to
the
cathode.
d.
can be cut off by applying a negative voltage to the control grid
or a positive voltage to the plate.
92
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