100+ Free FAA MEI Practice Questions

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The phrase 'dead foot, dead engine' is used to teach students to identify which engine has failed. What does this mean?

The dead engine side requires more rudder pressure

The foot that requires more pressure is on the dead engine side

Both feet should be off the rudder pedals when an engine fails

The foot with less pressure (not pushing) is on the side of the inoperative engine

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2026 Statistics

Key Facts: FAA MEI Exam

25 / 100

Exam Questions

25 for AFA added rating; 100 for FIA initial

70%

Passing Score

FAA Airman Knowledge Testing Matrix

1 hr / 2.5 hrs

Time Allotted

1 hour for AFA; 2.5 hours for FIA

$175

Knowledge Test Fee

PSI FAA testing portal

24 months

Test Validity

14 CFR 61.39 knowledge test expiration

18+

Minimum Age

14 CFR 61.183(a)

The MEI added rating knowledge test (AFA) is a 25-question, 60-minute exam with a 70% passing score administered at PSI testing centers for $175. If this is your initial flight instructor certificate, you take the FIA (100 questions, 2.5 hours) plus the FOI (50 questions, 1.5 hours) instead. The practical test is governed by FAA-S-ACS-25, effective May 31, 2024.

Sample FAA MEI Practice Questions

Try these sample questions to test your FAA MEI exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the definition of Vmc?

A.The minimum speed at which directional control can be maintained with one engine inoperative and the other at takeoff power

B.The best rate of climb speed with one engine inoperative

C.The minimum speed for safe intentional one-engine-inoperative flight

D.The stalling speed with flaps retracted in a multi-engine airplane

Explanation: Vmc is the minimum control speed with the critical engine inoperative. Per the Airplane Flying Handbook (FAA-H-8083-3), it is the minimum speed at which directional control can be maintained when one engine suddenly becomes inoperative and the operating engine is at takeoff power. Understanding this definition is fundamental to multi-engine instruction.

2Which of the following factors would cause Vmc to increase?

A.Higher gross weight

B.Aft center of gravity

C.Lower density altitude

D.Windmilling propeller on the inoperative engine

Explanation: An aft center of gravity (CG) reduces the moment arm between the rudder and the CG, which decreases the rudder's effectiveness in counteracting asymmetric thrust. This means a higher speed is needed to maintain directional control, so Vmc increases. Conversely, forward CG increases the rudder moment arm and decreases Vmc.

3During a Vmc demonstration, what is the first indication the student should recognize as approaching Vmc?

A.Engine oil pressure fluctuation

B.Loss of directional control that cannot be corrected with full rudder deflection

C.Stall warning horn activation

D.A sudden yaw toward the inoperative engine

Explanation: During a Vmc demonstration, the primary indication is the inability to maintain directional control despite full rudder input toward the operating engine. Per the ACS, the maneuver is terminated when directional control can no longer be maintained, the rudder pedal reaches the stop, or an uncontrollable yaw develops. The instructor must teach students to recognize this promptly.

4What are the four factors that make the critical engine 'critical' in a conventional twin with both engines rotating clockwise?

A.P-factor, accelerated slipstream, spiraling slipstream, and torque

B.P-factor, gyroscopic precession, adverse yaw, and drag

C.Torque, adverse yaw, accelerated slipstream, and induced drag

D.Spiraling slipstream, parasite drag, P-factor, and gyroscopic precession

Explanation: The four factors that determine the critical engine are P-factor (asymmetric thrust), accelerated slipstream, spiraling slipstream, and torque. In a conventional twin where both engines rotate clockwise (viewed from behind), the left engine is the critical engine because its failure produces the greatest yawing moment. These factors are covered in FAA-H-8083-3.

5In a conventional twin-engine airplane where both engines rotate clockwise as viewed from behind, which engine is considered the critical engine?

A.Right engine

B.Left engine

C.Either engine, depending on airspeed

D.Neither; both produce equal yawing moments

Explanation: In a conventional twin with both engines rotating clockwise, the left engine is critical. When the left engine fails, the right engine's P-factor creates a greater yawing moment because its center of thrust is farther from the airplane's centerline. Loss of the critical (left) engine results in the greatest adverse yaw and the highest Vmc.

6How does increasing altitude affect Vmc?

A.Vmc increases because the air is thinner

B.Vmc remains constant regardless of altitude

C.Vmc decreases because the operating engine produces less power

D.Vmc increases because rudder effectiveness decreases

Explanation: As altitude increases and air density decreases, the operating engine produces less power, which generates less asymmetric thrust. Since the yawing force is reduced, less rudder authority is needed to counteract it, and Vmc effectively decreases. However, the published Vmc (red line) is determined at sea level standard conditions.

7What effect does feathering the propeller of the inoperative engine have on Vmc?

A.It increases Vmc because feathering changes the CG

B.It decreases Vmc because feathering reduces drag on the dead engine side

C.It has no effect on Vmc

D.It increases Vmc because the feathered propeller increases the yaw moment

Explanation: Feathering the propeller of the inoperative engine significantly reduces drag on that side. With less drag pulling the aircraft toward the dead engine, the yawing tendency is reduced, and less rudder deflection is needed. This effectively lowers the actual Vmc. The published Vmc assumes a windmilling propeller, so feathering provides a substantial safety margin.

8What is the significance of the blue radial line on a multi-engine airplane's airspeed indicator?

A.It marks Vmc, minimum control speed

B.It marks Vyse, best rate of climb speed with one engine inoperative

C.It marks Vxse, best angle of climb speed with one engine inoperative

D.It marks Vsse, safe intentional one-engine-inoperative speed

Explanation: The blue radial line indicates Vyse, the best rate of climb speed (or minimum rate of descent speed) with one engine inoperative. Pilots should maintain this speed after engine failure and cleanup to maximize climb performance. It is a critical speed for multi-engine students to recognize and maintain during single-engine operations.

9What does the red radial line on a multi-engine airspeed indicator represent?

A.Vne, never-exceed speed

B.Vmc, minimum control speed with one engine inoperative

C.Vlo, maximum landing gear operating speed

D.Va, maneuvering speed

Explanation: The red radial line on a multi-engine airspeed indicator marks Vmc, the minimum control speed with the critical engine inoperative. Flight below this speed with one engine at takeoff power risks loss of directional control. Instructors must emphasize that students should never intentionally fly below the red line with asymmetric power.

10What is the relationship between Vmc and stall speed in a multi-engine airplane?

A.Vmc is always higher than stall speed

B.Vmc is always lower than stall speed

C.Vmc can be either above or below stall speed depending on conditions

D.Vmc and stall speed are always equal

Explanation: The published Vmc is determined under specific conditions (light weight, aft CG, sea level). Under different conditions, actual Vmc can be above or below stall speed. At higher weights, stall speed increases and may exceed Vmc. This is critical for instructors to teach because a stall-loss of control can occur before reaching Vmc, or Vmc may be reached before the stall, depending on configuration and loading.

About the FAA MEI Exam

The FAA Multi-Engine Instructor (MEI) knowledge test validates the aeronautical knowledge required to instruct in multi-engine airplanes. Most MEI candidates already hold a CFI certificate and take the AFA (Flight Instructor Airplane Added Rating) test, which is 25 questions in 1 hour. Candidates seeking their initial flight instructor certificate take the full FIA test (100 questions in 2.5 hours) plus the FOI. The test covers multi-engine aerodynamics, Vmc factors, engine failure procedures, aircraft systems, performance, regulations, and instructional techniques specific to multi-engine operations.

Questions

25 scored questions

Time Limit

1 hour (AFA added rating) or 2.5 hours (FIA initial instructor)

Passing Score

70%

Exam Fee

$175 (Federal Aviation Administration (FAA) / PSI Services)

FAA MEI Exam Content Outline

25%

Multi-Engine Aerodynamics and Vmc

Vmc definition and factors, critical engine theory, P-factor, accelerated slipstream, spiraling slipstream, torque, counter-rotating propellers, V-speeds (Vmc, Vyse, Vxse, Vsse), and zero-sideslip single-engine flight.

20%

Emergency and Engine-Out Operations

Engine failure identification and securing (Identify-Verify-Feather), Vmc demonstrations and recovery, single-engine approaches, single-engine go-arounds, emergency gear extension, and engine restart procedures.

15%

Fundamentals of Instructing

Learning process and levels, domains of learning, teaching methods (demonstration-performance, SBT), defense mechanisms, ADM and the DECIDE model, hazardous attitudes, CRM, lesson planning, and effective communication.

15%

Aircraft Systems

Constant-speed propeller and feathering systems, fuel systems and crossfeed operations, retractable landing gear systems, engine monitoring, and multi-engine-specific systems knowledge per the POH.

10%

Performance and Limitations

Accelerate-stop and accelerate-go distances, single-engine service and absolute ceilings, density altitude effects on multi-engine performance, and weight and balance calculations.

10%

Regulations and Certification

14 CFR Parts 61 and 91, flight instructor eligibility and privileges, MEI-specific endorsement authority, aircraft documents (ARROW), inspection requirements (AV1ATE), and inoperative equipment rules.

Flight Maneuvers and Procedures

Steep turns, slow flight and stalls in multi-engine airplanes, ground reference maneuvers, takeoff and landing techniques, preflight inspection, GUMPS check, and engine runup procedures.

How to Pass the FAA MEI Exam

What You Need to Know

Passing score: 70%
Exam length: 25 questions
Time limit: 1 hour (AFA added rating) or 2.5 hours (FIA initial instructor)
Exam fee: $175

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

FAA MEI Study Tips from Top Performers

1Master the Vmc factors first. Understanding how weight, CG, altitude, gear position, propeller state, and bank angle affect Vmc is the foundation of multi-engine instruction and the most heavily tested topic.

2Practice the Identify-Verify-Feather sequence until it is automatic. Know why each step exists and common student errors in engine failure identification.

3If you already hold a CFI, focus your knowledge test study on the 25 AFA questions, which emphasize multi-engine-specific topics and advanced aerodynamics rather than general instructor knowledge.

4Study the Airplane Flying Handbook (FAA-H-8083-3) Chapter 12 on multi-engine operations and the Aviation Instructor's Handbook (FAA-H-8083-9) for FOI topics.

5Review 14 CFR 61.195(f) for the 5-hour PIC requirement in specific make and model, and 14 CFR 61.187(b)(2) for the multiengine areas of operation that will be tested on the practical exam.

Frequently Asked Questions

Do I need to take a separate knowledge test for the MEI rating?

It depends. If you already hold a CFI certificate, the MEI is an added rating and you take the AFA (Flight Instructor Airplane Added Rating) test: 25 questions, 1 hour, 70% passing score. If MEI is your initial flight instructor certificate, you take the full FIA test (100 questions, 2.5 hours) plus the FOI (50 questions, 1.5 hours).

What is the cost of the FAA MEI knowledge test?

The standard FAA Airman Knowledge Test fee is $175, administered through PSI testing centers. The fee may vary slightly by testing location. You schedule and pay through the PSI online portal.

What are the prerequisites for the MEI certificate?

You must be at least 18 years old, hold a commercial pilot certificate (or ATP) with an airplane multiengine class rating and instrument rating, be proficient in English, and have the required training and endorsements from an authorized instructor per 14 CFR 61.183 and 61.187.

How long are MEI knowledge test results valid?

All FAA airman knowledge test results are valid for 24 calendar months from the date of the test. If you do not complete your practical test within that period, you must retake the knowledge test.

What ACS governs the MEI practical test?

The Flight Instructor for Airplane Category ACS (FAA-S-ACS-25), effective May 31, 2024, governs the MEI practical test. It includes specific multiengine tasks such as OEI Performance (Task P in Area of Operation II) and the multiengine operations area.

100+ Free FAA MEI Practice Questions

FAA Multi-Engine Instructor (MEI)

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