11-14.
Information needed to amplify a chart’s
description of a light in U.S. waters can be
found in what publication?
1.
List of Lights
2.
Light list
3.
Portfolio Chart List
4.
Chart No. 1
11-15.
What is the most important characteristic of a
navigation light for identification purposes?
1.
Fixed lights
2.
Periods of systematic change
3.
Color
4.
Size
11-16.
What type of light flashes at least 50 times each
minute?
1.
Fixed
2.
Occulting
3.
Alternating
4.
Quick flashing
11-17.
What type of light shows groups of two or more
flashes at regular intervals?
1.
Isophase
2.
Morse code
3.
Group flashing
4.
Occulting
11-18.
What range is the maximum distance at which a
light can be seen under the existing visibility
condition?
1.
Luminous
2.
Geographic
3.
Computed
4.
Nominal
11-19.
What range is the maximum distance at which a
light can be seen in clear weather?
1.
Luminous
2.
Geographic
3.
Computed
4.
Nominal
11-20.
In addition to the light itself, a lighthouse may
contain which of the following aids?
1.
2.
3.
4.
Radar and fog signaling equipment
Radar reflectors and direction-finding
instruments
Fog signaling and radio beacon
equipment
Radio beacon equipment and radar
reflectors
11-21.
Where conditions make it impossible or
impractical to build a permanent lighthouse,
what aid(s) is/are used?
1.
Buoys
2.
Channel markers
3.
Light station
4.
Lightship
11-22.
When a regular lightship goes in for repair, what
is painted on the side of the ship taking her
place?
1.
RELIEF
2.
RELIEF SHIP
3.
SHIP
4.
POSITION
11-23.
What term denotes the red glass placed in the
lanterns of certain lighthouses to indicate danger
bearing?
1.
Light areas
2.
Sector light
3.
Sections light
4.
Set light
11-24.
Although buoys are valuable aids to navigation,
they must never be relied on exclusively.
1.
True
2.
False
11-25.
What IALA Maritime Buoyage System region
should you be using if you were located in
Africa?
1.
A
2.
B
3.
C
4.
D
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