2-16.
Of the following directions, which one
should be reported when the winds are
blowing at 10 knots directly toward the
south?
1.
000°
2.
180°
3.
360°
4.
270°
2-17.
On a ship, which of the following relative
bearing directions represents dead astern?
1.
0°
2.
90°
3.
180°
4.
270°
2-18.
To convert magnetic wind direction to true
wind direction, the appropriate magnetic
declination must be added or subtracted.
1.
True
2. False
2-19.
What is the standard unit of measure for
wind speeds used by U.S. military forces?
1.
Meters per second
2.
Kilometers per hour
3.
Statute miles per hour
4. Knots
2-20.
One knot equals how many kilometers per
hour?
1.
1.852
2.
1.1507
3. 0.5144
4. 0.5394
2-21.
Which of the following phenomena is NOT
considered wind character?
1.
Mean wind speed
2.
Variable wind direction
3.
Wind speed gusts
4.
Peak wind gust
A. VARIABLE WIND
B. GUST
C. SQUALL
D. PEAK WIND SPEED
Figure 2-C
IN ANSWERING QUESTIONS 2-22 THROUGH
2-25, SELECT THE TERM IN FIGURE 2-C THAT
MATCHES THE DESCRIPTION GIVEN.
RESPONSES ARE USED ONLY ONCE.
2-22.
Rapid fluctuation in wind speed with a
variation between peaks and lulls of 10
knots or more.
1. A
2. B
3. C
4. D
2-23.
A sudden increase in wind speed by 16
knots or more, and remains 22 knots or
greater for at least 1 minute.
1. A
2. B
3. C
4. D
2-24.
The highest observed instantaneous wind
speed.
1. A
2. B
3. C
4. D
2-25.
Wind direction fluctuating by 60° or more.
1. A
2. B
3. C
4. D
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