PRACTICE EXERCISE (Continued)
3.
NITROGEN, and the purge device gauge indicates 4 PSI. What is the next step?
a.
Set purge device LEAK TEST/PURGE switch to LEAK TEST.
b.
Repeat steps 8 through 11 or 7 and 20, three additional times.
c.
Unscrew purging wrench/adapter assembly from gas inlet valve.
d.
Use Phillips screwdriver and tighten gas outlet ports.
4.
You are inspecting the driver's night vision viewer AN/VVS-2(V)2A after completion of
the purge and pressurization procedure. Which vehicle type can the AN/VVS-2(V)2A be
installed on?
a.
M113.
b.
M-60.
c.
XM-1.
d.
M109.
5.
How many purge ports are located on the driver's night vision viewer AN/VVS-2(V) ?
a.
4.
b.
3.
c.
2.
d.
1.
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