Questões ATP_pag316

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B.
sea-level pressure 993.6 hectopascals and that an indeterminable amount of
precipitation has occurred over the last 3 hours.
 C.
sea-level pressure 993.6 hectopascals and that four-tenths of an inch of precipitation
has fallen in the last 6 hours.
The 'SLP993 6/////' in the Remarks section of the METAR indicates sea-level pressure
993.6 hectopascals and that an indeterminable amount of precipitation has occurred
over the last 3 hours.
1074. Clouds with extensive vertical development over mountainous terrain are a sign of
 A. a dry adiabatic lapse rate.
 B. a stable air mass.
 C. an unstable air mass.
When operating in the vicinity of towering cumulus (i.e., moderate/strong
development), pilots can expect pilots can expect very strong turbulence and some
clear icing above the freezing level.
1075. If squalls are reported at the destination airport, what wind conditions exist?
 A.
Sudden increases in windspeed of at least 15 knots, to a sustained wind speed of 20
knots, lasting for at least 1 minute.
 B.
A sudden increase in wind speed of at least 16 knots, the speed rising to 22 knots or
more for 1 minute or longer.
 C.
Rapid variation in wind direction of at least 20° and changes in speed of at least 10
knots between peaks and lulls.
A squall (SQ) is a sudden increase in wind speed of at least 16 knots, the speed rising
to 22 knots or more and lasting at least 1 minute.
1076. (Refer to Figure 149.) What will be the wind and temperature trend for a DEN ICT
OKC flight at 11,000 feet?
 A. Temperature decrease.
 B. Windspeed increase slightly.
 C. Wind shift from calm to a westerly direction.
Interpolation of the FD forecasts for 9,000 and 12,000 feet yield a forecast at 11,000
feet of:
DEN - Wind light and variable (9900), temperature +6°C.
ICT - Wind 060° at 2 knots, temperature +5°C.
OKC - Wind 110° at 2 knots, temperature +6°C.
Answer (A) is incorrect because the temperature increases at OKC to a temperature
higher than DEN. Answer (C) is incorrect because the wind shifts from calm to an
easterly direction.
1077. Which type precipitation is an indication that supercooled water is present?