The attributes of the 62.5/125m fiber do NOT • Low source to fiber coupling efficiency
include which of the following factors?
• Low loss
• Low source to fiber coupling efficiency
• High bandwidth
• Low bending sensitivity
When designing portable and pack radios, • Must be light-weight and compact
which of the following characteristics is the
prime consideration?
• Must be solar powered
• Must be light-weight and compact
• Must be heavy and rugged
• Must have high output power
The total charge on a transmission line is • Voltage
equal to the current multiplied by which of
the following factors?
• Resistance
• Voltage
• Time
• Power
What are the two parts of a fiber optic • Optical detector and signal conditioning circuits
receiver?
• Optical detector and signal conditioning
circuits
• Optical detector and PIN diode
• Fiber and optical detector
• Fiber and case
1/21
,8/18/24, 3:37 AM
The spreading out of radio waves is referred • Each of the above
to as propagation and is used in which of the
following Navy equipment?
• Detection
• Communication
• Radar and navigation
• Each of the above
The speed of light depends on the medium • Space is less dense than glass
through which light travels. For which of the
following reasons does light travel through
empty space faster than through an object
such as glass?
• Space is less dense than glass
• Glass refracts the light, causing the light to
travel in all directions
• Space is more dense than glass
• Glass reflects the light back to the source
Manual volume control of a receiver • Audio amplifier
internally varies the input to which of the
following circuits?
• Radio frequency amplifier
• Frequency converter
• Audio amplifier
• Detector
What does the term overfilled launch mean? • When the launch spot size and the angular distribution are larger than that of fiber
core
• When the launch spot size and the angular
distribution are larger than that of fiber core
• When light is launched only into the low
order mode
• When too much power is launched into the
fiber
• When not enough power is launched into
the fiber
Naval ships should be examined by INSURV 3
at least once every how many years if
practical?
•2
•1
•5
•3
2/21
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Voluntary motor actions-hand and arm • 0.10%
movements, walking, and sometimes
speech-become clumsy at what blood-
alcohol level?
• 0.05%
• 0.20%
• 0.10%
• 0.15%
Which of the following terms describe the • Transition
time between a space and mark or mark and
space condition in a teletypewriter?
• Movement
• Transition
• Character interval
• Variation
Which of the following types of energy • Radio waves
CANNOT be seen, heard, or felt?
A cross-cut shredder shall reduce the • five square millimeters
information to shreds no greater than?
• four square millimeters
• 3/64 by ½ inch
• five square millimeters
• 1/65 by ½ inch
What are the classification authority, office of • Associated Markings
origin, warning notices, intelligence and
other special control markings, and
declassification/downgrading instructions of
a classified document?
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