A. dry air at altitude tends to increase the rate of water loss from the body
B. moist air at altitude helps retain the body's moisture.
C. temperature decreases with altitude.
The correct answer here is A. Dry air at altitude tends to increase the rate of water loss from the body.
During the hot/summer temperatures, long periods of being outside flying in the dry air/high altitudes makes you sweat and lose fluids at a faster than normal rate. If you don't replenish these fluids you will feel dehydrated and lead to fatigue and decreased performance as a pilot while flying.
This question may seem kind of silly, it's an important one that the FAA wants you to know. C is the just plain wrong. B is also wrong - so A is the only correct option here. Again, not really a hard question - but one that will show up on the test!
Studying for the Part 107 is difficult and time consuming - but very worth it. I studied off and on for months for the test, and I'm posting some of the questions that I found difficult to answer. The phrasing of a lot of the questions can be difficult to interpret or visualize, but talking through them helps!
If you have any other questions, join our drone community on Facebook and ask questions, get feedback or just share some of your drone photos/videos!
I'm a designer from Cleveland, Ohio and love to shoot photos & videos. I made my first website in 2004 to show friends photos & videos (before YouTube/Flickr were things) and have been shooting and designing ever since! I have a deep passion for making and helping others create.
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