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FAA Instrument Rating Foreign Pilot via BASA (61.71) Knowledge Test Practice Test

The IFB knowledge test covers instrument-flight knowledge for foreign pilots seeking an FAA instrument rating through the BASA pathway under 14 CFR 61.71. Practice-bank questions touch on IFR planning and procedures, flight instruments, navigation aids, approach decisions, and cockpit workload management.

Exam overview

Exam providerFederal Aviation Administration
Exam codeIFB
CategoryAviation

About the FAA Instrument Rating Foreign Pilot via BASA (61.71) Knowledge Test Exam

Instrument flying requires pilots to interpret indications from systems such as the altimeter, attitude display, magnetic compass, and ADF while maintaining aircraft control and situational awareness. IFR tasks include reviewing route and destination NOTAMs, understanding alternate-airport planning, and managing workload as conditions or demands change. Approach decisions require evaluating weather against applicable operating limits and the aircraft’s position in the procedure. Questions also touch on coordinated turns and the meaning of instrument failure indications. These topics connect technical interpretation with practical judgment: pilots must recognize what a display or navigation needle indicates, identify when information needs verification, and choose an appropriate response without losing control of the flight.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

A pilot encounters a rapidly increasing workload during an IFR flight. Which general cockpit-management practice is most appropriate?

  1. APrioritize aircraft control, then navigation and communication as circumstances permit
  2. BComplete every checklist item before correcting any flight-path deviation
  3. CStop monitoring instruments while communicating with ATC
  4. DMake several configuration changes at once to finish tasks sooner
Show answerCorrect answer: A

Aviate, navigate, communicate is a useful prioritization principle: maintain control of the aircraft first, then manage the flight path and communications as workload allows. Specific emergencies may require adapting priorities to the situation.

Question 2

What is the primary purpose of a magnetic compass deviation card?

  1. ATo show the aircraft's magnetic variation along the planned route
  2. BTo provide corrections for compass errors caused by magnetic fields in the aircraft
  3. CTo indicate the compass's maximum operating temperature
  4. DTo convert true airspeed into calibrated airspeed
Show answerCorrect answer: B

Aircraft magnetic fields can cause compass deviation, which varies with heading. A deviation card records the corrections determined for that aircraft so the pilot can obtain a more accurate compass heading.

Question 3

When preparing for an IFR flight, why should a pilot review NOTAMs relevant to the route and destination?

  1. AThey may report temporary changes or outages affecting navigation aids, runways, procedures, or airport services.
  2. BThey replace the need to review current charts and weather information.
  3. CThey provide the aircraft's approved maximum operating altitude.
  4. DThey determine whether the pilot is qualified to fly the planned approach.
Show answerCorrect answer: A

NOTAMs communicate time-sensitive information such as facility outages, runway closures, and temporary procedure changes. They supplement, rather than replace, current charts, weather information, and pilot qualification requirements.

Question 4

An aircraft is flying an NDB approach using an automatic direction finder (ADF). What does the ADF needle generally point toward when the system is functioning normally?

  1. AThe aircraft's selected magnetic course
  2. BThe NDB station, indicating relative bearing
  3. CThe next waypoint in the flight plan
  4. DThe aircraft's ground track over the terrain
Show answerCorrect answer: B

An ADF normally indicates the relative bearing to the tuned nondirectional beacon. The pilot combines that relative bearing with aircraft heading information to determine the station's bearing or position.

Question 5

Which factor is most important when deciding whether to continue an approach in deteriorating weather?

  1. AWhether the aircraft can remain within published limits and the pilot can meet approach requirements safely
  2. BWhether the flight has already used more than half its fuel
  3. CWhether another aircraft recently landed at the airport
  4. DWhether the pilot can see city lights near the airport
Show answerCorrect answer: A

Approach continuation should be based on the applicable weather minima, aircraft limitations, required visual references, and the pilot's ability to maintain a safe, stabilized approach. Other aircraft's experience or unrelated visual cues do not establish that these requirements are met.

Question 6

For an IFR flight, what is the purpose of filing an alternate airport when required?

  1. ATo identify a suitable airport if the destination cannot be used as planned
  2. BTo authorize a lower-than-published approach minimum at the destination
  3. CTo replace the need to carry required fuel reserves
  4. DTo ensure ATC routes the aircraft directly to that airport
Show answerCorrect answer: A

An alternate is a planned option if the destination becomes unavailable or conditions prevent landing there. Filing one does not change approach minima, fuel requirements, or guarantee a particular ATC route.

Question 7

Why should a pilot verify the aircraft's altimeter setting before and during an IFR flight?

  1. APressure changes can cause indicated altitude to differ from the altitude expected with the current setting
  2. BThe setting determines the aircraft's magnetic heading
  3. CThe setting eliminates the need to cross-check altitude against other instruments
  4. DThe setting controls the altimeter's rate of climb indication
Show answerCorrect answer: A

An altimeter uses atmospheric pressure to indicate altitude. Using an incorrect pressure setting can produce significant altitude error, so pilots obtain and set current altimeter information as required and cross-check instruments.

How to use this practice test

The free practice session draws up to 20 random questions from the available 50-question IFB bank. After submitting a session, you can see results and use missed questions to identify which instrument indications, IFR procedures, or decision points need another review.

Preparation tips

  • For IFR planning practice, work through a route and destination NOTAM review, noting which notices could affect approach availability or flight operations.
  • Use instrument diagrams to rehearse what the altimeter, attitude display, compass deviation card, ADF needle, and inclinometer ball indicate—and what a failure flag changes.
  • Compare approach scenarios with deteriorating weather, focusing on applicable limits, aircraft position, and the decision to continue or discontinue.
  • Practice explaining why an alternate may be required and how verifying altimeter settings supports accurate altitude awareness.
  • When reviewing missed questions, distinguish a display’s normal indication from the pilot action required when its information is unreliable.
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