12 practice questions from the 251 in this chapter of StudyWren Aviation. Pick an answer and check it to see the explanation and its FAA source.
PIC Responsibility & Preflight ActionPAR-05-240
You are VFR in Class D airspace. The tower tells you to make a right 360-degree turn for spacing, but the turn would take you into a cloud. What should you do?
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The answer is C: Tell the controller you are unable and request a different instruction
AIM 4-4-1 states a clearance is not authorization to deviate from any rule, and if ATC issues one that would cause a deviation or jeopardize the aircraft, the pilot is responsible for requesting an amended clearance. Under 14 CFR 91.123(b) you may not simply act contrary to the instruction without telling ATC.
The answer is C: Tell the controller you are unable and request a different instruction
AIM 4-4-1 states a clearance is not authorization to deviate from any rule, and if ATC issues one that would cause a deviation or jeopardize the aircraft, the pilot is responsible for requesting an amended clearance. Under 14 CFR 91.123(b) you may not simply act contrary to the instruction without telling ATC.
You took an over-the-counter antihistamine this morning, and it is still making you noticeably drowsy. You have had no alcohol. Under 14 CFR 91.17, may you act as pilot in command?
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The answer is A: No, because you may not fly while using a drug that impairs your faculties
14 CFR 91.17(a)(3) prohibits acting as a crewmember while using any drug that affects the person's faculties in any way contrary to safety. Over-the-counter drugs are included; drowsiness from a sedating antihistamine is a classic example. The issue is impairment, not a blanket ban on every antihistamine.
The answer is A: No, because you may not fly while using a drug that impairs your faculties
14 CFR 91.17(a)(3) prohibits acting as a crewmember while using any drug that affects the person's faculties in any way contrary to safety. Over-the-counter drugs are included; drowsiness from a sedating antihistamine is a classic example. The issue is impairment, not a blanket ban on every antihistamine.
Over a sparsely populated area, you fly 400 feet directly above an isolated, unoccupied barn. Under 14 CFR 91.119(c), this is:
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The answer is A: Not permitted, because you are within 500 feet of a structure
Over open water or sparsely populated areas, 14 CFR 91.119(c) prohibits operating closer than 500 feet to any person, vessel, vehicle, or structure. An unoccupied barn is still a structure.
The answer is A: Not permitted, because you are within 500 feet of a structure
Over open water or sparsely populated areas, 14 CFR 91.119(c) prohibits operating closer than 500 feet to any person, vessel, vehicle, or structure. An unoccupied barn is still a structure.
You will cross a congested area where the terrain is 650 feet MSL. The highest obstacle within 2,000 feet horizontally of your route is a radio tower 480 feet AGL. What is the lowest altitude permitted by 14 CFR 91.119(b)?
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The answer is A: 2,130 feet MSL
Top of the tower = 650 + 480 = 1,130 feet MSL. Over a congested area 91.119(b) requires 1,000 feet above the highest obstacle within 2,000 feet horizontally: 1,130 + 1,000 = 2,130 feet MSL. A figure of 1,650 adds 1,000 feet to the terrain and ignores the tower, and 1,630 adds only 500 feet above the tower top.
Top of the tower = 650 + 480 = 1,130 feet MSL. Over a congested area 91.119(b) requires 1,000 feet above the highest obstacle within 2,000 feet horizontally: 1,130 + 1,000 = 2,130 feet MSL. A figure of 1,650 adds 1,000 feet to the terrain and ignores the tower, and 1,630 adds only 500 feet above the tower top.
During preflight of a rental airplane, you cannot find its registration certificate anywhere in the aircraft. The FBO says a copy is on file in its office. May you fly?
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The answer is C: No, an effective registration certificate must be within the aircraft
14 CFR 91.203(a)(2) prohibits operating a civil aircraft unless it has within it an effective U.S. registration certificate (or the temporary authority described in 47.31(c)). A copy kept elsewhere does not satisfy the rule. Maintenance logbooks, by contrast, need not be carried aboard.
The answer is C: No, an effective registration certificate must be within the aircraft
14 CFR 91.203(a)(2) prohibits operating a civil aircraft unless it has within it an effective U.S. registration certificate (or the temporary authority described in 47.31(c)). A copy kept elsewhere does not satisfy the rule. Maintenance logbooks, by contrast, need not be carried aboard.
During preflight you find that the airspeed indicator is inoperative. The airplane has no MEL. May you depart on a day VFR flight?
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The answer is B: No, an airspeed indicator is required for day VFR flight
14 CFR 91.205(b)(1) requires an airspeed indicator for day VFR, and 91.213(d)(2)(iii) prohibits deferring any item required by 91.205 for the kind of operation being conducted, so deactivating and placarding it does not make the flight legal.
The answer is B: No, an airspeed indicator is required for day VFR flight
14 CFR 91.205(b)(1) requires an airspeed indicator for day VFR, and 91.213(d)(2)(iii) prohibits deferring any item required by 91.205 for the kind of operation being conducted, so deactivating and placarding it does not make the flight legal.
Your passenger, who is not a crewmember, asks you to demonstrate a 70-degree banked turn. Neither of you has a parachute. Under 14 CFR 91.307, this maneuver is:
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The answer is B: Not permitted unless each occupant wears an approved parachute
14 CFR 91.307(c) prohibits, when carrying anyone other than a crewmember, any intentional maneuver exceeding 60 degrees of bank or 30 degrees of pitch unless each occupant wears an approved parachute. Whether the maneuver counts as aerobatic flight under 91.303 does not matter.
The answer is B: Not permitted unless each occupant wears an approved parachute
14 CFR 91.307(c) prohibits, when carrying anyone other than a crewmember, any intentional maneuver exceeding 60 degrees of bank or 30 degrees of pitch unless each occupant wears an approved parachute. Whether the maneuver counts as aerobatic flight under 91.303 does not matter.
During preflight you notice the airplane's Certificate of Aircraft Registration shows an expiration date that passed last month. May you fly the airplane?
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The answer is A: No, it may not be operated until it has an effective registration
14 CFR 91.203(a)(2) requires an effective registration certificate aboard, and 47.3(b) prohibits operating an eligible aircraft that is not registered. An expired certificate is not effective, and the airworthiness certificate itself depends on the aircraft being registered (21.181).
The answer is A: No, it may not be operated until it has an effective registration
14 CFR 91.203(a)(2) requires an effective registration certificate aboard, and 47.3(b) prohibits operating an eligible aircraft that is not registered. An expired certificate is not effective, and the airworthiness certificate itself depends on the aircraft being registered (21.181).
To cross a mountain ridge in an unpressurized airplane, you will spend a total of 25 minutes at 13,500 feet MSL and the rest of the flight below 12,500 feet. For how long must you, the sole required pilot, use supplemental oxygen under 14 CFR 91.211?
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The answer is C: No oxygen use is required for this flight
Between 12,500 and 14,000 ft MSL, 14 CFR 91.211(a)(1) requires supplemental oxygen for the required crew only for the part of the flight at those altitudes that continues for more than 30 minutes. Your time in that band is 25 minutes, which never reaches 30, so no oxygen is required. Continuous use for the whole time at altitude applies only above 14,000 ft MSL.
The answer is C: No oxygen use is required for this flight
Between 12,500 and 14,000 ft MSL, 14 CFR 91.211(a)(1) requires supplemental oxygen for the required crew only for the part of the flight at those altitudes that continues for more than 30 minutes. Your time in that band is 25 minutes, which never reaches 30, so no oxygen is required. Continuous use for the whole time at altitude applies only above 14,000 ft MSL.
Two airplanes in a traffic pattern touch wingtips in flight. Both land safely, no one is injured, and the only damage is to the wingtips. What does 49 CFR 830 require of each operator?
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The answer is C: Immediate notification of the NTSB, because a collision in flight is a listed incident
49 CFR 830.5(a)(5) lists aircraft collision in flight as a serious incident requiring immediate notification, even though the wingtip damage is excluded from substantial damage and the event is therefore not an accident.
The answer is C: Immediate notification of the NTSB, because a collision in flight is a listed incident
49 CFR 830.5(a)(5) lists aircraft collision in flight as a serious incident requiring immediate notification, even though the wingtip damage is excluded from substantial damage and the event is therefore not an accident.
During a hard landing, a passenger suffers a simple fracture of the nose. The airplane's only damage is dented skin on the belly. No other event on the 830.5 list occurred. Must the NTSB be notified?
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The answer is A: No, because the injury is not serious and the damage is not substantial
49 CFR 830.2 excludes simple fractures of fingers, toes, or nose from serious injury, and excludes dented skin from substantial damage. With no death, serious injury, or substantial damage, there is no accident, and none of the 830.5 serious incidents occurred.
The answer is A: No, because the injury is not serious and the damage is not substantial
49 CFR 830.2 excludes simple fractures of fingers, toes, or nose from serious injury, and excludes dented skin from substantial damage. With no death, serious injury, or substantial damage, there is no accident, and none of the 830.5 serious incidents occurred.
Which cabin task is listed as preventive maintenance in 14 CFR Part 43, Appendix A?
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The answer is C: Replacing the safety belts
Appendix A(c)(14) lists replacing safety belts. Side windows may be replaced under (c)(13) when the work does not interfere with structure or operating systems, but the windshield is not included, and panel rewiring is maintenance.
Why not ?
Source: 14 CFR Part 43, Appendix A(c)(13)-(15)·ACS PA.I.B
Appendix A(c)(14) lists replacing safety belts. Side windows may be replaced under (c)(13) when the work does not interfere with structure or operating systems, but the windshield is not included, and panel rewiring is maintenance.
Source: 14 CFR Part 43, Appendix A(c)(13)-(15)·ACS PA.I.B
