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Eight-glasses-a-day conversion

Remote Pilot (Part 107) practice question 5 of 20 on Operations / Physiology. ACS element UA.V.E.K1 · difficulty: applied. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONThe Remote Pilot Study Guide refers to the common eight-glasses-a-day guide. If each glass of water holds eight ounces, what daily amount of water does this equal?

  1. A64 ounces, or two quarts
  2. B48 ounces, or one and a half quarts
  3. C128 ounces, or one gallon
Show the answer and explanation

Correct answer: A. 64 ounces, or two quarts

  • A — correct Eight glasses of eight ounces each is 64 ounces, which the study guide states equals two quarts, the low end of its two-to-four-quart daily recommendation.
  • B — incorrect Eight glasses of eight ounces is 64 ounces, not 48; 48 ounces would be only six glasses.
  • C — incorrect Eight eight-ounce glasses total 64 ounces, not 128; the study guide equates the eight-glass guide with two quarts.

BACKGROUND

The Remote Pilot Study Guide recommends drinking two to four quarts of water every 24 hours to help prevent dehydration. It connects this to the familiar eight-glasses-a-day guide: if each glass holds eight ounces, eight glasses equal 64 ounces, which is two quarts. The guide stresses that each person is physiologically different, so these figures are guides rather than exact requirements. If fluid is not replaced, fatigue progresses to dizziness, weakness, nausea, tingling of the hands and feet, abdominal cramps, and extreme thirst.

STUDY TIP

Work the arithmetic once (8 x 8 oz = 64 oz = 2 quarts) so you can link the eight-glass guide to the two-quart minimum on the test.

KEY POINTS

  • Eight glasses x 8 ounces = 64 ounces = two quarts.
  • Two quarts is the low end of the two-to-four-quart daily guide.
  • Unreplaced fluid loss progresses from fatigue to dizziness, nausea, and cramps.

SOURCES

  • remote_pilot_study_guide.txt ch9 "Dehydration"
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MORE ON OPERATIONS / PHYSIOLOGY

SkyDrill is not affiliated with the FAA. This is an original practice item based on 14 CFR part 107, 14 CFR part 89, and the FAA Remote Pilot – Small UAS Study Guide (FAA-G-8082-22). Regulations and handbooks are revised; confirm details against the current edition.