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Friday 4th July 2008
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Brainteasers Interactive Quiz #20:
Night Flying

In the United States and many other parts of the world, autumn is a lovely season for flying. The foliage is changing color, creating spectacular scenery, and the weather is generally pleasant. But autumn also brings dwindling daylight hours and more hours of darkness. A flight that ended in daylight during summer might now mean a landing after dark. In case you're a little rusty on the finer points of flying at night, this interactive quiz should provide an educational brush-up.

by Irv Siegel

The questions is this Brainteaser quiz are based on FAR Part 91.

NOTE: There are special rules for night flying in the State of Alaska, but for the purpose of this quiz, please assume that you are not operating there.

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. You are preparing for a Part 91 VFR flight to pick up a passenger at another airport and return to your home field. You know that you will be returning after sunset. Which of the following statements is true regarding your proposed flight?
a. You must have a reserve fuel supply of at least 45 minutes.
b. You must have a reserve fuel supply of at least 60 minutes.
c. There's not enough information given to know the fuel reserve required by FAA regulations.
2. Same scenario as above. You do not meet the recency of experience requirements for carrying passengers at night. Will your proposed flight be legal?
a. No. You cannot carry passengers after sunset.
b. Yes. As long as you depart before sunset, you can carry passengers even if you do not meet the recency of experience requirements.
c. There's not enough information given to determine the answer.
3. Before beginning a flight at night, you should know that it takes time for your eyes to fully adapt to a dark environment. In general it will take approximately
a. 15 minutes
b. 30 minutes
c. 45 minutes
d. 60 minutes
4. There are several things that a pilot can do to protect his/her night vision. Among these are:
a. Use the dimmest acceptable interior lighting.
b. If necessary to use a bright light, close one eye in order to prevent losing night adaptation in that eye.
c. Occasionally close both eyes for periods up to two minutes.
d. All of the above.
e. a & b only.
5. You are preparing for a flight at night, and do not have supplemental oxygen. You should know that
a. The FAA requires the use of supplemental oxygen above 5000' cabin pressure altitude at night.
b. The FAA recommends the use of supplemental oxygen above 5000' cabin pressure altitude at night.
c. The FAA requires the use of supplemental oxygen above 7500' cabin pressure altitude at ngiht.
d. The FAA recommends the use of supplemental oxygen above 7500' cabin pressure altitude at night.
6. While flying at night, under what conditions should you turn the cockpit lighting up to full bright?
a. All the time, in order to see the flight and engine instruments clearly.
b. Never, in order to preserve your night vision adaptation.
c. When flying in the vicinity of lightning.
7. While preflighting your aircraft for a night flight, you discover that the anti-collision light (rotating beacon) is burned out. What statement is true regarding your proposed flight?
a. Go fly! An anti-collision light isn't required for night flight.
b. You're grounded at night until the bulb is replaced by one that works.
c. You can fly at night, since, even though an anti-collision light is required for night flight, it's up to the pilot whether to use the anti-collision light or not. You'll have to placard the light as "inoperative."
8. You note that the time of sunset in your area is 2030 local time. If you are flying that evening, you must turn on your approved position lights no later than
a. 1930 local time
b. 2000 local time
c. 2030 local time
d. 2100 local time
e. 2130 local time
9. Which of the following equipment is not required for a night VFR flight under Part 91 in a small single engine aircraft?
a. One spare set of fuses, or three spare fuses of each kind required, that are accessible to the pilot in flight.
b. A flashlight.
c. An adequate source of electrical energy for all installed electrical and radio equipment.
d. All of the above are required.
10. You are returning to your home airport at night, and the control tower informs you that the weather is below VFR weather minimums. You consider asking for a special VFR clearance. You should know that in order to get one, the following conditions must be met:
a. The pilot must meet the applicable requirements for instrument flight under Part 61.
b. The aircraft is equipped as required in FAR 91.205(d) for IFR flight at night.
c. Within the preceding 24 calendar months each static pressure system, each altimeter instrument, and each automatic pressure altitude reporting system has been tested and inspected and found to comply with the requirements of appendix E of FAR Part 43.
d. All of the above.
11. Bonus Question! Of concern to users of the National Airspace System are laser events that may affect pilots, e.g., outdoor laser light shows or demonstrations for entertainment and advertisements at special events and theme parks. Which of the following statements is not true regarding lasers?
a. Generally, the beams from these events appear as bright blue-green in color; however, they may be red, yellow, or white. Some laser systems produce light which is invisible to the human eye.
b. There are FAA regulations that specifically address the above-mentioned laser activities.
c. The illumination from these laser operations is able to create temporary vision impairment miles from the actual location. In addition, these operations can produce permanent eye damage. Pilots should make themselves aware of where these activities are being conducted and avoid these areas if possible.

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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