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What test takers get wrong

Could you pass today? The 10 questions test takers miss most.

Ranked by first-try miss rate across everyone who drills on part107drill, weighted by how many people have tried each one. Updated 2026-09-01.

These are the 10 questions people miss most on their first attempt, ranked from real results rather than hand picked as tricky. They cluster in the parts of the exam that trip up new remote pilots most: airspace, chart reading, and the precise numbers in the regulations. Clear these and the rest of the test gets easier.

Tap any question to try it. Free, no signup. You get the answer and the full explanation after you commit to a choice, same as the real exam.
Rank
Question
Missed by
#1
During a commercial roof inspection, a small UA stops responding to control inputs, flies off uncommanded, and crashes into a tree. The aircraft is destroyed. No one is hurt and no other property is damaged. What must the remote PIC do?
REG-054Regulations
15 of 20
75% miss
#2
A Part 107 remote pilot certificate is valid for:
REG-007Regulations
30 of 46
65% miss
#3
A remote pilot acquires a drone that is currently registered in another country and wants to register it with the FAA. What must happen first?
REG-047Regulations
14 of 20
70% miss
#4
The IMSAFE checklist evaluates a pilot's personal readiness to fly. What does each letter represent?
OPS-021Operations
11 of 15
73% miss
#5
A remote pilot is preparing a construction documentation flight. The current observation reports 3 SM visibility and a broken ceiling at 1,200 feet AGL. The client says the shot only needs 200 feet AGL and 10 minutes. Part 107 minimums are 3 SM visibility and 500 feet below clouds. What is the correct decision?
WX-036Weather
7 of 9
78% miss
#6
A solid magenta line bounding an area on a sectional chart typically indicates the boundary of:
AIR-044Airspace
15 of 25
60% miss
#7
A Restricted Area on an aeronautical chart indicates airspace where:
AIR-016Airspace
19 of 34
56% miss
#8
The Remote ID operator compliance deadline was September 16, 2023, but the FAA then exercised discretion on enforcement for a period to allow operators additional time to comply. On what date did full FAA enforcement of operator compliance begin?
REG-046Regulations
12 of 20
60% miss
#9
Under Part 107, what must a remote pilot have to conduct Category 2 or Category 3 operations over people?
REG-025Regulations
19 of 35
54% miss
#10
Where must a small unmanned aircraft's serial number be listed when using either standard remote identification or a broadcast module?
REG-020Regulations
19 of 41
46% miss

Missed a few? Most people studying do. The drill rebuilds this list around what you get wrong.

▶  Drill all 10. Free, no signup

How these are chosen

Every question is ranked by its first-try miss rate, weighted so a question only a few people have tried cannot outrank one that many people have missed. A question needs at least 3 attempts before it can appear, so a single unlucky guess never lands one here. The full method is on the methodology page.

Common questions

What is the hardest part of the Part 107 test?

For test takers with no aviation background, the hardest sections are sectional chart reading, airspace classification, and decoding METARs and TAFs. Those topics lean on aviation literacy that takes the longest to build, which is why they keep surfacing on the list above.

How many questions can I miss and still pass?

The Part 107 knowledge test has 60 multiple choice questions and a 70 percent passing score, so you need 42 correct and can miss up to 18. The questions above are the ones most likely to end up in that missed group, so clearing them is high leverage.

Why are these specific questions missed so often?

Most hinge on a precise number or a regulatory edge case where a close guess still fails: an exact altitude, a specific time window, or a rule that has a narrow exception. The order is set by real first-try results, not by which questions feel tricky.

How often does this list change?

It refreshes from real first-try answers as more people drill, so the ranking shifts as new results come in. The date under the title shows the latest snapshot.

These change as more people drill. Want questions from one area instead?

Regulations questions →Airspace questions →Weather questions →Loading & Performance questions →Operations questions →Browse the whole bank →