Figure 2-D
IN ANSWERING QUESTIONS 2-5 1 AND 2-52,
REFER TO FIGURE 2-D. THIS FIGURE IS A
REPRESENTATION OF A TRIANGULAR
CHEMICAL HAZARD AREA.
2-51.
In the diagram, line AHC represents the
Chemical Downwind Direction (CDD).
What meteorological parameter is used to
determine this direction?
1.
Mean layer wind, surface to 1,000 feet
AGL
2.
Surface wind direction
3.
Surface wind direction plus 180°
4.
Mean layer wind, surface to 1,000 feet
AGL plus 90°
2-52.
At sea, if the wind speed is 15 knots, what
radial angle, represented by angle DBE in
the diagram, is used?
2-53.
Which of the following wind changes are
considered significant relative to a
chemical attack?
1.
Wind speed increases from 11 knots to
15 knots
2.
Wind speed decreases from 8 knots to
4 knots
3.
Wind direction veers from 180° to
200°
4.
Wind direction backs from 010° to
355°
2-54.
In a NAV NBC 3 CHEM message, which
elements provide the attack position,
chemical downwind direction and speed,
and the downwind hazard distance?
1.
A, D, and F
2.
PA, Y
3.
PB and ZA
4.
F, Y, and ZB
2-55.
When a chemical attack is plotted as two
connected triangular areas, by what means
was the chemical agent delivered?
1. Mortar
2. Missile
3. Stationary fog generator
4. Aircraft spray
1.
20°
2.
30°
3.
35°
4.
40°
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