1–22.
How much does the Nite-Eye pocket
scope weigh?
1.
10 ounces
2.
15 ounces
3.
2.5 pounds
4.
4
pounds
1-23.
What is the basis for the improved
night observation and aimed fire
of weapons provided by crew-served
and individual-served sights?
1.
Available light from the night
sky
2.
Greater magnification
3.
Special mounting
4.
Attached illumination devices
1-24.
Instructions for donning the
AN/PVS-5C NVG are permanently
mounted on the side of the unit.
1.
True
2.
False
1-25.
The eyes of some animals that hunt
at night and sleep in the daytime
have retinas composed almost
entirely of cones.
1.
True
2.
False
1-26.
Which of the following military
applications is not met by lasers
used in the Navy today?
1.
Training aids
2.
Communications
3.
Target destruction
4.
Landing systems
1–27.
Lasers operate on which of the
following principles?
1.
Stimulated emission
2.
Spontaneous decay
3.
Stimulated decay
4.
Random direction
1–28.
In what state do electrons in a
lasing material reside?
1.
Steady
2.
Excited
3.
Unstable
4.
Both 2 and 3 above
1-29.
During lasing, a burst of light
will be transmitted along which of
the following paths?
1.
Through the optical axis
2.
Through the 100% reflecting
mirror
3.
Through the optical cavity
4.
Through the 99% reflecting
mirror
1-30.
Which of the following statements
is/are true regarding differences
in light from a conventional
source and light from a laser?
1.
The intensity of light from a
conventional source decreases
rapidly with distance
2.
The beam intensity of a laser
remains almost the same as at
the source
3.
A laser requires much lower
power
4.
All of the above
1-31.
Which of the following surfaces
will not significantly change the
divergence of the striking laser
beam?
1.
Curved specular
2.
Curved diffuse
3.
Flat specular
4.
Flat diffuse
1-32.
For which of the following
surfaces is the amount of
divergence determined by the size
of the beam?
1.
Curved specular
2.
Curved diffuse
3.
Flat specular
4.
Flat diffuse
3
