3-56.
3-57.
The PRK-37/P helmet shells are
available in how many sizes?
1.
Three
2.
Four
3.
Five
4.
Six
Which of the following is
recommended to clean the shell
and edge roll of a helmet?
1.
Ammonia and water
2.
Brillo pad
3.
Mild detergent and water
4.
Canopy polish
What percentage of a helmet must
be covered with reflective tape?
1.
75 percent
80 percent
3.
90 percent
4.
100 percent
What colors are recommended for
3-58.
2.
3-59.
2.
use when taping a helmet?
1.
Green and red
White and red
3.
Blue and white
4.
White and orange
The SPH–3C helmet is Suppl
how many sizes?
1.
Two
2.
Three
3.
Four
4.
Six
3-60.
ied in
3-61.
Liners for the SPH-3C helmet are
3-62.
provided in which of the
following sizes?
1.
1/4 and 3/4 inch
2.
1/2, 3/8, and 15/16 inch
3.
1/4, 1/2, and 5/8 inch
4.
1/2 and 3/4 inch
What percentage of visible light
is transmitted in the neutral
visor of a SPH-3C helmet
assembly?
1.
3 to
5 percent
2.
8 to 16 percent
20 to 30 percent
3.
4.
85 percent or greater
3-63.
3-64.
3-65.
3-66.
3-67.
3-68.
How often are protective helmets
subjected to a calendar
inspection?
1.
Every 210 days
2.
Every 180 days
3.
Every 120 days
4.
Every 90 days
Learning Objective:
Inspect,
maintain, and fit the pressure-
demand oxygen mask.
The MBU-12/P oxygen mask will
continue to function at a depth
of
1.
10 feet underwater
2.
12 feet underwater
3.
16 feet underwater
4.
20 feet underwater
How many different configurations
can be made from the MBU-12/P
oxygen mask?
1.
S i x
2.
Five
3.
Four
4.
Two
Which of the following manuals
will give complete information on
a MBU-12/P oxygen mask configura-
tion buildup?
1.
NAVAIR 13-1-6.4
2.
NAVAIR 13-1–6.7
3.
NAVAIR 00-80T-101
4.
NAVAIR 13-1-6.1
When fitting the mask to an
aviator, how far are the bayonet
fittings inserted into the
receiver assembly?
1.
Until it is snug
2.
To the first locking position
3.
To the third locking position
4.
To the second locking
position
After adjusting the straps on the
bayonet fittings you should tack
them in place with
1.
two turns of E thread
2.
one turn of E thread
3.
two turns of A thread
4.
one turn of FF thread
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