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Saturday 5th July 2008
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Brainteasers Interactive Quiz #16:
Pilot Weather Reports (PIREPs)

Forecasts are fine and dandy, but the only really reliable information we have to go on about weather hazards like icing, turbulence and windshear are the PIREPs we get from pilots who flew there before us. Do you file PIREPs as often as you should? Do you even know the correct procedures? Take this quiz and find out.

by Mike Busch

The questions in this Brainteaser quiz are based on the AIM.

Answer the questions as best you can, then click on the "score" button to see your score and read the explanations. If you don't like your score the first time around, you can change some of your answers and resubmit. To get the most out of this quiz, we suggest you keep trying until you get a perfect score.

1. Pilots should file in-flight PIREPs with:
a. the nearest Flight Service Station.
b. the nearest ATC facility (center, approach, or tower).
c. the nearest Enroute Flight Advisory Service ("Flight Watch").
d. whatever FAA or NWS ground facility you're talking to at the time.
2. You're flying a single-engine aircraft with no deicing gear, and encounter icing conditions serious enough that immediate diversion is necessary. You should report this icing as:
a. light.
b. moderate
c. severe
d. extreme
3. You fly through an area of turbulence that scares the heck out of your passengers. You feel a definite strain against your seat and shoulder belts, have a hard time holding altitude, and see small variations indicated airspeed. Your Jeppesen Airway Manual starts to move about, and you grab it so it won't get away from you. You should report this as:
a. light turbulence.
b. light chop.
c. moderate turbulence.
d. moderate chop.
e. severe turbulence.
4. While flying an airway segment from one VOR to another, you encounter on-and-off turbulence about half of the time. You should report this turbulence as:
a. occasional.
b. light.
c. intermittent.
d. moderate.
5. The main difference between "turbulence" and "chop" is:
a. that turbulence is smooth and rhythmic, while chop produces sharp, erratic jolts.
b. that turbulence causes changes in altitude or attitude, while chop does not.
c. in the mind of the beholder: the two terms are synonymous and interchangeable.
6. Consider the following coded PIREP:
CMH UA /OV APE 230010/TM 1516/FL085/TP BE20/SK BKN065
/WX FV03SM HZ FU/TA 20/TB LGT
Where and when was this PIREP filed?
a. Overflying the Appleton VOR at 0010 UTC on the 23rd day of the month.
b. Overflying the Appleton VOR between 1500 and 1600 UTC.
c. Overflying the Appleton VOR at 1516 UTC.
d. Ten miles southwest of the Appleton VOR at 1516 UTC.
7. Referring to the coded PIREP in question 6, what clouds and weather were reported?
a. Broken ceiling at 6,500 feet, forward visibility beneath the ceiling 3 miles in haze and smoke.
b. Broken ceiling at 6,500 feet, flight visibility 3 miles in haze and smoke at 8,500 feet.
c. Tops of the broken layer at 6,500 feet, flight visibility 3 miles in haze and smoke at 8,500 feet.
d. Broken ceiling at 6,500 feet, visibility 20 miles at 8,500 feet.
8. Consider the following coded PIREP:
SNS UA /OV PXN 300020-ECA/TM 0139/FL170-150
/TP A320/IC LGT-MOD RIME/RM ZOA
Where did the A320 Airbus crew encounter light-to-moderate icing?
a. In the vicinity of the Salinas (Calif.) VOR [SNS] between 15,000 and 17,000 feet.
b. Overflying the Panoche (Calif.) VOR [PXN] while descending from 17,000 to 15,000 feet.
c. Between the Panoche [PXN] and Manteca [ECA] VORs at 0020 UTC on the 30th of the month.
d. From 20 miles west-northwest of the Panoche [PXN] VOR to the Manteca [ECA] VOR, while descending from 17,000 to 15,000 feet.

If you enjoyed taking this interactive quiz and would like to see more like it, please let us know. And if you thought it was unfair, confusing, or a waste of time, we'd like you to tell us that, too. And if you have an idea for a subject that you think would make a good future Brainteaser quiz, be sure to let us know.

Return to the AVweb Brainteasers page.






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If you enjoyed taking this interactive quiz and would like to see more like it, go to the AVweb Brainteaser page. And if you thought it was unfair, confusing, or a waste of time, we'd like you to tell us that, too. And if you have an idea for a subject that you think would make a good future Brainteaser quiz, be sure to let us know.

Return to the AVweb Brainteasers page.

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