Part 107 Weather Practice Questions
Weather makes up 7 of every 50 questions on a Tigertest Part 107 practice test. Here are 10 of the 28 questions on it, each with the answer and the reason.
Updated by the Tigertest team. Weighted to the FAA Remote Pilot ACS. The real test adds sectional chart figures, so study a chart legend too.
1. A remote PIC wants an official standard weather briefing by telephone before a morning flight. Which source should the PIC call?
- A.The nearest control tower's clearance delivery frequency
- B.Flight Service at 1-800-WX-BRIEF
- C.A local television station's weather desk
- D.The FAA DroneZone support desk
Answer: B. Flight Service (1-800-WX-BRIEF) provides official standard, abbreviated and outlook briefings. Official METARs, TAFs and winds aloft are also posted at aviationweather.gov; towers, DroneZone and TV stations are not official briefing sources.
2. A remote PIC notes a line of towering cumulus, gusty shifting winds, and showers approaching quickly from the northwest. Which weather system is most likely arriving?
- A.A stationary high-pressure ridge
- B.An occluded low with steady drizzle
- C.A warm front with widespread stratus
- D.A cold front
Answer: D. Cold fronts move quickly and bring cumuliform clouds, showers, thunderstorms, gusty winds and a wind shift, followed by clearing. Warm fronts bring stratiform clouds, steady precipitation and poor visibility over a wide area.
3. In the METAR KLAX 121753Z 25012G20KT 10SM FEW020 SCT250 19/12 A3002, when was the observation taken?
- A.The 12th day of the month at 1753 UTC
- B.December 17 at 5:30 p.m. local time
- C.The 12th day of the month at 1753 local time
- D.1217 UTC with 53 minutes until the next report
Answer: A. The date-time group gives the day of the month (12) and the time in Zulu or UTC (1753Z). METAR times are never local time.
4. A METAR reads KLAX 121753Z 25012G20KT 10SM FEW020 SCT250 19/12 A3002. The sUAS manufacturer limits wind to 15 knots. What should the remote PIC conclude?
- A.Fly; the 12-knot steady wind is within the limit
- B.Fly; METAR winds are in miles per hour, so gusts are lower
- C.Postpone; gusts to 20 knots exceed the aircraft's 15-knot limit
- D.Postpone; the wind is blowing toward 250 degrees magnetic at 20 knots
Answer: C. 25012G20KT means wind from 250 degrees true at 12 knots, gusting to 20 knots. Gusts above the aircraft's rated capability can exceed its ability to hold position or return, so the flight should wait.
5. In the METAR group FEW020 SCT250, what cloud layers are being reported?
- A.Overcast at 2,000 ft AGL with a ceiling at 25,000 ft
- B.Few clouds at 2,000 ft MSL and scattered at 25,000 ft MSL
- C.Few clouds at 2,000 ft AGL and scattered at 25,000 ft AGL
- D.Few clouds at 200 ft AGL and scattered at 2,500 ft AGL
Answer: C. METAR cloud heights are in hundreds of feet above ground level, so 020 is 2,000 ft AGL and 250 is 25,000 ft AGL. FEW and SCT layers do not constitute a ceiling.
6. What do the groups 19/12 A3002 at the end of a METAR report?
- A.Temperature 19 C, dew point 12 C, altimeter 30.02 inHg
- B.Temperature 19 F, dew point 12 F, altimeter 3,002 ft
- C.Dew point 19 C, temperature 12 C, altimeter 30.02 inHg
- D.Temperature 19 C, visibility 12 SM, pressure altitude 3,002 ft
Answer: A. METAR temperature and dew point are reported in degrees Celsius, temperature first. The A group is the altimeter setting in inches of mercury, so A3002 is 30.02 inHg.
7. A METAR at the nearest airport reports SCT008 BKN025 OVC040. What is the ceiling?
- A.4,000 ft AGL
- B.800 ft AGL
- C.250 ft AGL
- D.2,500 ft AGL
Answer: D. The ceiling is the lowest broken or overcast layer, or the vertical visibility into an obscuration. The scattered layer at 800 ft is not a ceiling, so the BKN025 layer at 2,500 ft AGL is.
8. Before an early-morning inspection flight, the METAR reads KDEN 151253Z 32004KT 1/2SM FZFG VV002 M02/M03 A3021. Besides visibility, which hazard is most significant?
- A.Severe wind shear from a nearby microburst
- B.Structural icing on propellers and airframe
- C.Convective turbulence from strong surface heating
- D.Excessive battery heating from high temperatures
Answer: B. FZFG is freezing fog and M02/M03 means minus 2 C and minus 3 C; visible moisture at or below freezing is the condition for icing. Ice on propellers rapidly reduces thrust and lift.
9. Flight visibility at a remote pilot's control station is 2 statute miles in haze, and the clouds are well above. May the flight proceed under Part 107 without a waiver?
- A.Yes, if the sUAS stays within 2 SM of the pilot
- B.No; Part 107 requires at least 3 SM
- C.No; minimum flight visibility is 5 SM in haze
- D.Yes; 2 SM is acceptable below 400 ft AGL
Answer: B. 14 CFR 107.51(c) requires flight visibility of at least 3 statute miles from the control station. Staying close to the pilot does not change this minimum, and there is no 5 SM rule.
10. The METAR at a field next to the operating area reports OVC010. What is the highest altitude the sUAS may fly while meeting Part 107 limits?
- A.600 ft AGL
- B.500 ft AGL
- C.1,000 ft AGL
- D.400 ft AGL
Answer: D. With an overcast base at 1,000 ft AGL, staying 500 ft below clouds would allow 500 ft AGL, but 14 CFR 107.51 also limits altitude to 400 ft AGL. The more restrictive limit, 400 ft AGL, applies.
Practice all 28 weather questions, and the rest of the 200-question bank, in the free Part 107 training sets. Questions you miss come back until you have mastered them.
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