FAA Private Pilot Glider Knowledge Test Practice Test
The FAA Private Pilot Glider Knowledge Test (PGL) addresses the knowledge used to prepare for and conduct glider flights. Its practice questions sample aircraft loading and balance, flight instruments, aerodynamic effects of spoilers or dive brakes, airspace and aeronautical information, weather judgment, and route planning for flights that may require an off-field landing.
Exam overview
About the FAA Private Pilot Glider Knowledge Test Exam
Glider pilots need to connect aircraft limitations and flight conditions to safe operational decisions. Weight-and-balance knowledge helps assess whether loading keeps the center of gravity within limits; an aft center of gravity can affect stability and handling. Understanding the pitot-static system and altimeter setting supports accurate interpretation of flight indications and altitude. Pilots also need to anticipate how spoiler or dive-brake use changes drag and descent, and to make smooth control inputs, particularly close to the ground. Planning involves identifying landing options along a cross-country route and checking current aeronautical information for relevant restrictions. Weather judgment includes recognizing when cloud conditions may compromise visual reference and choosing a conservative course of action. These skills support preflight planning, in-flight monitoring, and decisions about whether to continue, divert, or land.
Sample Practice Questions
Review a selection from this exam's published US Practice Tests practice bank.
When a glider’s center of gravity is too far aft, what handling characteristic may result?
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Correct answer: AAn aft center of gravity generally reduces longitudinal stability and can make stall or spin recovery more difficult. Weight and balance must remain within the aircraft’s approved limits.
What is the basic purpose of an altimeter’s barometric setting?
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Correct answer: AThe barometric setting adjusts the altimeter to the pressure reference used for interpreting altitude. Using an appropriate setting helps the pilot understand altitude relative to the applicable pressure datum; it does not measure airspeed or climb rate.
In the United States, what should a pilot use to determine whether required aeronautical information or airspace restrictions affect a planned flight?
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Correct answer: ACurrent charts and applicable aeronautical information sources help pilots identify airspace, restrictions, and other relevant changes. Aircraft placards do not provide a complete record of temporary restrictions.
Why should a glider pilot avoid allowing a passenger or other occupant to move freely during flight?
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Correct answer: AOccupant movement can alter loading and balance, and may interfere with the pilot’s control of the aircraft. Occupants should be briefed to remain secured and follow the pilot’s instructions.
A pilot is planning a cross-country flight in a glider. Why should the pilot identify suitable landing fields along the route?
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Correct answer: AIdentifying reachable, suitable landing areas is a core part of glider cross-country risk management. Conditions can change, and a pilot should be prepared to land safely rather than continue toward an unreachable destination.
What is the principal reason a glider pilot should avoid abrupt control inputs near the ground?
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Correct answer: ANear the ground, there is little height available to recover from an upset or an unintended flight-path change. Smooth, deliberate control inputs help preserve control and reduce the risk of excessive loading or loss of clearance.
A glider pilot is uncertain whether a cloud layer permits adequate visual reference for continued flight. What is the safest general approach?
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Correct answer: BA pilot should not enter instrument meteorological conditions merely because the aircraft remains controllable. Gliders are not automatically equipped or approved for instrument flight; the pilot must comply with applicable rules and the aircraft’s limitations and maintain appropriate visual conditions.
How to use this practice test
The free practice bank contains 50 published questions, with sessions drawing up to 20 random questions. Use a session to check your understanding of glider loading, instruments, aerodynamic controls, weather judgment, and flight planning. Results appear after the session, so you can identify concepts that need closer review.
Preparation tips
- Practice calculating or checking loading against the glider’s weight-and-balance data, and explain how an aft center of gravity can change handling.
- Trace how pitot and static pressure support flight indications; distinguish the altimeter’s barometric setting from aircraft altitude limits.
- For spoiler or dive-brake questions, connect control position to increased drag, descent, and the need to manage airspeed and approach path.
- Plan a hypothetical cross-country route by identifying suitable landing fields and considering current aeronautical information and airspace restrictions.
- Work through weather scenarios involving reduced visual reference, and state when a conservative decision to turn back, divert, or land is appropriate.