ATSC 231 Exam 1 Questions with All Correct Answers
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Course
ATSC 231
Institution
ATSC 231
ATSC 231 Exam 1 Questions with All Correct Answers
Type of obscurations reported by ASOS - Answer- Fog (FG)
Mist (BR)
Freezing Fog (FZFG)
Haze (HZ)
Blowing Snow (BLSN)
When are PIREPs required to be solicited? - Answer- Ceiling at or below 5,000ft, visibility at or below 5 miles, thunder...
ATSC 231 Exam 1 Questions with
All Correct Answers
Type of obscurations reported by ASOS - Answer- Fog (FG)
Mist (BR)
Freezing Fog (FZFG)
Haze (HZ)
Blowing Snow (BLSN)
When are PIREPs required to be solicited? - Answer- Ceiling at or below 5,000ft,
visibility at or below 5 miles, thunderstorms, light icing or greater, moderate turbulence
or greater, wind shear, volcanic ash
PIREP flight visibility reported in nm or sm? - Answer- sm
when are PIREPs considered UUA - Answer- reports tornadoes, funnel clouds, or water
spouts, severe or extreme turbulence, severe icing, volcanic ash, low level wind shear
(LLWS), airspeed fluctuates of more than 10 knots within 2,000 ft of the ground
turbulence is occurring less than 1/3 of the time - Answer- Occasional (OCNL)
turbulence
turbulence is occurring ⅓ to ⅔ of the time - Answer- Intermittent (INTMT) turb
turbulence is occurring more than ⅔ of the time - Answer- Continuous (CONS) turb
momentarily causes slight or erratic changes in altitude or attitude - Answer- light LGT
turb
changes in altitude and or attitude occur but the aircraft remains in positive control at all
times. Causes variation in airspeed. - Answer- moderate MOD turb
causes large abrupt changes in altitude or attitude and usually causes large variation in
indicated airspeed - Answer- severe SVR turb
the aircraft is violently tossed about and is practically impossible to control. May cause
structural damage. - Answer- extreme (EXTRM) turb
, ice becomes perceptible. Rate of accumulation slightly greater than rate of sublimation.
Is not hazardous even though deicing equipment is not used unless encountered for an
extended period of time - Answer- trace icing
the rate of icing accumulation may create a problem if flight is prolonged in the
environment. Occasional use of deicing and anti-icing equipment removes accumulation
- Answer- light icing
encounters of this icing condition for short periods of time are dangerous. Diversion is
necessary - Answer- moderate icing
deicing equipment fails to remove the accumulation of ice. Ice accumulates places that
usually don't accumulate icing - Answer- severe
automated weather observation system with AUTO in the description and reports every
20 mins is called - Answer- AWOS
what does a P in the metar remarks mean - Answer- precipitation has fallen in the last
hour
A01 in metar remarks means - Answer- station cannot distinguish between types of
precipitation
A02 in metar remarks means - Answer- station can distinguish types of precipitation
PK WND means - Answer- strongest wind in the last hour
when is a speci required regarding freezing drizzle - Answer- any time it shows up
what does an I mean in the remarks - Answer- icing on the probe
what is the first level of augmentation - Answer- level C
lowest level of ASOS, not automated at all, provides basic reporting services - Answer-
level D
second best level of ASOS, augmentation, at smaller hubs - Answer- level B
4 parts of an ASOS machine - Answer- acquisition control unit, operator interface
device, individual weather sensors, data collection package
when you hear the ATIS winds are ______ - Answer- magnetic
when you read the METAR the winds are _______ - Answer- true
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