Study guide
1.2 How to Study for the AMG Exam
FAA Aviation Mechanic — General AMG
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1 Chapter 1: Introduction & AMG Exam Overview
1.1 About the FAA Aviation Mechanic General Knowledge Test 1.2 How to Study for the AMG Exam
2 Chapter 2: Maintenance Forms, Records, Publications & Regulations
2.1 14 CFR Parts 43, 65, and 91 Regulatory Framework 2.2 Aviation Mechanic Privileges, Limitations & Recent Experience 2.3 Maintenance Recordkeeping & Return-to-Service Entries (14 CFR 43.9 & 43.11) 2.4 FAA Form 337 Major Repairs and Major Alterations 2.5 Airworthiness Directives (ADs) & Mandatory Compliance 2.6 Type Certificate Data Sheets (TCDS), STCs, ACs & Maintenance Manuals 2.7 FAA Forms, MMEL/MEL, Inoperative Equipment & Parts Effectivity
3 Chapter 3: Basic Electricity
3.1 DC Electrical Circuits, Ohm's Law & Power 3.2 AC Electrical Fundamentals, Reactance & Impedance 3.3 Aircraft Lead-Acid & Nickel-Cadmium Storage Batteries 3.4 DC Generators, Alternators & Electric Motors 3.5 Aircraft Wiring, Bonding & Circuit Protection Devices 3.6 Resistor Color Codes, Semiconductors, Digital Logic & Electrostatic Discharge
4 Chapter 4: Materials & Processes
4.1 Aircraft Ferrous and Nonferrous Metals & Heat Treatment 4.2 Metal Hardness Testing (Rockwell, Brinell, Vickers) 4.3 Nondestructive Testing (NDT/NDI) Inspection Methods 4.4 Aircraft Hardware, Fasteners & Safetying Methods 4.5 Composite Materials, Plastics & Control Cables 4.6 Soldering, Welding & Weld Quality Inspection
5 Chapter 5: Cleaning & Corrosion Control
5.1 Corrosion Types, Chemistry & Identification 5.2 Corrosion Removal, Chemical Conversion Coatings & Surface Treatments 5.3 Aircraft Cleaning Agents, Precautions & Preventative Maintenance 5.4 Aircraft Finishing Systems, Registration Markings & Placards
6 Chapter 6: Weight & Balance
6.1 Weight and Balance Terminology, Datum, Arm & Moment Principles 6.2 Aircraft Weighing Procedures, Scale Reactions & Tare Weight 6.3 Center of Gravity Computations, Extreme Loading & Ballast
7 Chapter 7: Ground Operation, Servicing & Safety
7.1 Engine Starting Procedures, Danger Areas & Ground Taxi Safety 7.2 Aircraft Servicing (Oxygen, Hydraulic, Pneumatic & De-Icing Fluids) 7.3 Aircraft Fueling Safety, Static Grounding & Hangar Fire Protection 7.4 Airport Movement Areas, Hazardous Materials, Tool Control & FOD Prevention
8 Chapter 8: Aircraft Drawings
8.1 Aircraft Drawing Types, Title Blocks & Orthographic Projections 8.2 Line Conventions, Dimensions, Tolerances & Material Symbols 8.3 Electrical Wiring Diagrams, Logic Flowcharts & Fluid Schematics
9 Chapter 9: Fluid Lines & Fittings
9.1 Rigid Metal Tubing Fabrication, Bending & 37° AN Flaring 9.2 Flexible Hose Construction, Pressure Ratings & Lay Lines 9.3 AN/MS/Quick-Disconnect Fittings, Identification & Installation
10 Chapter 10: Mathematics for Aviation Maintenance
10.1 Fractions, Decimals, Percentages & Ratio/Proportion 10.2 Geometric Computations (Area, Volume & Cylinder Displacement) 10.3 Algebraic Equations, Powers, Roots & Maintenance Conversions
11 Chapter 11: Physics for Aviation Maintenance
11.1 Matter, Mass, Weight, Density & Specific Gravity 11.2 Work, Energy, Power & Simple Machines (Mechanical Advantage) 11.3 Fluid Mechanics, Pascal's Law & Bernoulli's Principle 11.4 Thermodynamics, Heat Transfer, Gas Laws, Sound & Aerodynamics 11.5 Standard Atmosphere, Density & Pressure Altitude, Flight Controls & Aerodynamic Devices
12 Chapter 12: Inspection Concepts, Techniques & Precision Measurement
12.1 Aircraft Inspection Programs & Inspection Concepts 12.2 Precision Measuring Tools & Tool Calibration
13 Chapter 13: Human Factors in Aviation Maintenance
13.1 Human Error, the Dirty Dozen & Maintenance Safety Culture 13.2 Human Performance, Limitations, Fatigue & the Work Environment 13.3 Communication, Shift Turnover, Event Investigation & Professionalism
1.2 How to Study for the AMG Exam
Key Takeaways Explain This Topic AI
Section I (General) of FAA-S-ACS-1 contains twelve subjects lettered A through L, including Inspection Concepts and Techniques (K) and Human Factors (L) that most third-party prep material omits entirely.
FAA-S-ACS-1 contains no percentages, but the FAA companion guide FAA-G-ACS-1 publishes a written-test blueprint for AMG: 5–15% of questions each for Fundamentals of Electricity and Electronics and for Ground Operations and Servicing, and 5–10% for each of the other ten subjects; exact per-subject counts are not published.
Section I holds 166 knowledge elements plus 62 risk-management and 130 skill elements, so a 60-question test samples roughly one item per three knowledge elements.
ACS element codes take the form AM.I.A.K1 (certificate, section, subject, element); AMG is the test code printed on the Airman Knowledge Test Report, not an element-code prefix.
Primary references are FAA-H-8083-30B, AC 43.13-1B and AC 43.13-2B, FAA-S-ACS-1 itself, and the FAA-CT-8080-4G testing supplement used during the exam.
Last updated: October 2026
1.2 How to Study for the AMG Exam
Passing the FAA Aviation Mechanic General (AMG) knowledge test demands a structured, engineering-grade study approach. The AMG examination is not a test of rote memorization; it evaluates your capacity to interpret technical data, execute precise physical and electrical calculations, apply federal maintenance regulations to real-world scenarios, and identify critical safety hazards.
This section outlines the official Airman Certification Standards (ACS) architecture, analyzes the subject area weightings, identifies authoritative FAA publications, and delivers a study framework built toward a first-time pass.
The Airman Certification Standards (ACS) Architecture
The FAA has transitioned mechanic certification to the Airman Certification Standards (FAA-S-ACS-1) , replacing the legacy Practical Test Standards (PTS). The ACS aligns knowledge, risk management, and skill elements across the written, oral, and practical examinations into an integrated, transparent testing framework. +-------------------------------------------------------------------------+
- | FAA-S-ACS-1 ELEMENT CODING SYSTEM |
- +-------------------------------------------------------------------------+
- | |
- | Example ACS Code: AM . I . A . K1 |
- | -- - - -- |
- | | | | | |
- | Certificate --------+ | | +--- Element type & number |
- | (AM = Aviation | | (K = Knowledge, R = Risk Mgmt, |
- | Mechanic) | | S = Skill) |
- | | | |
- | Section ----------------+ +------- Subject letter |
- | (I = General, (A = Fundamentals of Electricity |
- | II = Airframe, and Electronics) |
- | III = Powerplant) |
- | |
- | NOTE: the prefix is AM, not AMG. There is no "AMG.I.A.K1" code. |
- | AMG is the TEST CODE printed on your AKTR; AM.I.A.K1 is the ACS |
- | ELEMENT CODE used to report which subject you missed. |
- | |
- +-------------------------------------------------------------------------+
- The Three ACS Pillars
Knowledge (K): Theoretical concepts, mathematical formulas, physical principles, and regulatory definitions tested primarily on the written exam and probed during the oral examination.
Risk Management (R): Identification of human factors, operational hazards, environmental risks, and safety precautions associated with maintenance tasks.
Skill (S): Practical hands-on competencies executed under the direct observation of the DME (e.g., fabricating rigid tubing, taking micrometer measurements, performing a dye-penetrant inspection).
The 12 Official General ACS Subjects and Their Published Ranges
Section I (General) of FAA-S-ACS-1 contains twelve subjects, lettered A through L — not ten. Two of them, Inspection Concepts and Techniques (K) and Human Factors (L) , are routinely omitted from third-party study material because they did not exist as separate blocks in the retired Part 147 appendices. They are in the ACS now, the ACS is incorporated by reference at 14 CFR § 65.23 , and they are fair game.
Read this before you trust any "AMG exam weights" table. FAA-S-ACS-1 contains no percentages, and the FAA Airman Knowledge Testing Matrix publishes only the totals (60 questions, 2.0 hours, 70% to pass). The FAA's companion guide, FAA-G-ACS-1 (Change 2, September 2024) , does publish a written-test blueprint: 5–15% of AMG questions for Fundamentals of Electricity and Electronics and for Ground Operations and Servicing, and 5–10% for each of the other ten subjects. It publishes no exact per-subject question counts, so any site showing single figures such as "Regulations 24%" invented them. The element inventory below — the count of Knowledge (K) elements written for each subject — is a further rough proxy for breadth, not a weighting.
ACS Code Subject Knowledge (K) elements What it actually asks you to know
AM.I.A Fundamentals of Electricity and Electronics 27 Electron theory, magnetism, capacitance, inductance, AC/DC circuits, Ohm's/Kirchhoff's/Watt's/Faraday's/Lenz's laws, series and parallel resistance, batteries, transformers, switches and relays, fuses and breakers, resistor color coding, semiconductors, digital logic, binary, electrostatic discharge, AC and DC motors
AM.I.B Aircraft Drawings 4 Lines, symbols and terminology on drawings, blueprints and schematics; using drawings to verify conformity to type design; using drawings for inspection; drawing terminology
AM.I.C Weight and Balance 10 Terminology, purpose of weighing, weighing procedures and area considerations, arm/moment/CG/moment-index calculation, weight and CG limits, adverse loading, empty-weight configuration, ballast placement, jacking
AM.I.D Fluid Lines and Fittings 6 Tubing and hose materials, sizes and fittings; rigid and flexible line identification; fabrication, installation and inspection practices; torque wrench use on fittings; torque seal and witness marks
AM.I.E Aircraft Materials, Hardware, and Processes 14 Common materials, heat treatment and metalworking, applied forces, hardware, safety wire and clips, precision measurement, soldering, torquing and preload, material suitability, identification markings, acceptable and unacceptable welds, weld repair
AM.I.F Ground Operations and Servicing 16 Towing, securing, fueling and defueling, airport operations area procedures and ATC communication including runway incursion prevention, engine start and taxi, fire extinguisher classes, oil/hydraulic/pneumatic/deice servicing, oxygen servicing, fuel characteristics and additives, tool accountability, material handling, parts protection, hazardous materials and SDS, foreign object damage
AM.I.G Cleaning and Corrosion Control 24 Cleaning procedures, corrosion theory, types, prone areas, identification, removal and treatment, corrosion preventive compounds, dissimilar metals, conversion coatings, primers, topcoats, surface preparation, ambient conditions, identification and registration markings and placards, finish inspection, finishing safety, control surface balance after refinishing
AM.I.H Mathematics 13 Areas and volumes, geometric terms, ratio, proportion and percentage, algebra, metric conversion, scientific/decimal/fractional/binary notation, rounding, powers, measurement systems, signed integers, basic operations
AM.I.I Regulations, Maintenance Forms, Records, and Publications 23 Mechanic privileges and recency, return-to-service entries after maintenance and after inspection, FAA forms (337, 8010-4, 8100-2, 8130-3), Part 1 maintenance terminology, major/minor determination, the 14 CFR framework, agency publications (TCDS, AC, AD), AMOCs, manufacturer publications and MMELs, FAA databases and STCs, approved vs. acceptable data, airworthiness limitations, warnings/cautions/notes, inoperative equipment, discrepancy records and placards, effectivity codes, address-change notification
AM.I.J Physics for Aviation 13 Matter and energy, work/power/force/motion, simple machines, heat and pressure, Bernoulli, Newton's laws, gas laws and fluid mechanics, theory of flight, standard atmosphere, primary and secondary flight controls, vortex generators/wing fences/stall strips, temperature-density-weight-volume relationships, force/area/pressure
AM.I.K Inspection Concepts and Techniques 5 Calipers, micrometers and gauges; calibration and tool accuracy; NDT procedures and methods; inspection programs (progressive, 100-hour, annual and other FAA-approved); inspection methods and tools for materials, hardware and processes
AM.I.L Human Factors 11 Safety culture and organizational factors, human error principles, event investigation, human performance and limitations, physical and social environment, hazard communication and reporting, teamwork and leadership, professionalism and integrity, shift and task turnover, preconditions for unsafe acts, types of human error
Section I total 166 Plus 62 risk-management (R) and 130 skill (S) elements, which drive the oral and practical test +-------------------------------------------------------------------------+
- | FAA-S-ACS-1 SECTION I: KNOWLEDGE ELEMENTS PER SUBJECT |
- | (element counts from the ACS -- NOT FAA exam weights) |
- +-------------------------------------------------------------------------+
- | A Electricity & Electronics 27 ########################### |
- | G Cleaning & Corrosion Control 24 ######################## |
- | I Regulations, Forms & Records 23 ####################### |
- | F Ground Operations & Servicing 16 ################ |
- | E Materials, Hardware, Processes 14 ############## |
- | H Mathematics 13 ############# |
- | J Physics for Aviation 13 ############# |
- | L Human Factors 11 ########### |
- | C Weight and Balance 10 ########## |
- | D Fluid Lines and Fittings 6 ###### |
- | K Inspection Concepts 5 ##### |
- | B Aircraft Drawings 4 #### |
- +-------------------------------------------------------------------------+
- What this means for your study plan
Because the FAA publishes only ranges, and every subject gets at least 5%, the defensible strategy is blueprint completeness : every one of the 166 knowledge elements is a legal candidate for a question, and a 60-question sample drawn from 166 elements works out to roughly one question for every three elements . You cannot afford a blank subject. In particular:
Do not skip Subjects K and L. Together they hold 16 knowledge elements — more than Weight and Balance — and most commercial question banks under-serve them badly.
Small subjects are not low-risk. Aircraft Drawings carries only four knowledge elements, but each one is broad ("commonly used lines, symbols, and terminology" covers an entire line-convention chart), so per-element depth is high.
Weight your time by your own diagnostic score, not by an invented percentage table. Take a full 60-question timed test, map every miss to an ACS code, and spend your hours where those codes cluster. That is exactly what the Designated Mechanic Examiner will do with your Airman Knowledge Test Report during the oral.
Essential FAA Handbooks & Authoritative References
Every question on the AMG exam is referenced directly to an official FAA publication. Relying exclusively on third-party question banks without reading the source material leaves dangerous knowledge gaps that will be exposed during the DME oral examination. +-------------------------------------------------------------------------+
- | OFFICIAL FAA STUDY REPOSITORY |
- +-------------------------------------------------------------------------+
- | Publication Code | Title & Core Focus |
- +---------------------+---------------------------------------------------+
- | FAA-H-8083-30B | Aviation Maintenance Technician Handbook—General |
- | (2023 edition) | • Primary text for the 12 General ACS subjects |
- | | • Downloadable free from FAA.gov |
- +---------------------+---------------------------------------------------+
- | AC 43.13-1B | Acceptable Methods, Techniques, and Practices— |
- | (Change 1) | Aircraft Inspection and Repair |
- | | • The industry standard "bible" for hardware, |
- | | rivet layout, control cables, torque, & NDT |
- +---------------------+---------------------------------------------------+
- | AC 43.13-2B | Acceptable Methods, Techniques, and Practices— |
- | | Aircraft Alterations |
- | | • Structural antenna installations & cargo mods |
- +---------------------+---------------------------------------------------+
- | 14 CFR Part 43 | Maintenance, Preventive Maintenance, Rebuilding, |
- | | and Alteration |
- | | • Major vs. minor repair definitions (App. A) |
- | | • Form 337 execution and logbook signoffs |
- +---------------------+---------------------------------------------------+
- | 14 CFR Part 65 | Certification: Airmen Other Than Flight Crew |
- | | • Subpart D: Mechanic eligibility and privileges |
- | | • § 65.19 retesting; § 65.21 change of address |
- | | • § 65.23 incorporates FAA-S-ACS-1 by reference |
- +---------------------+---------------------------------------------------+
- | FAA-S-ACS-1 | Aviation Mechanic General, Airframe, and |
- | (Nov 1, 2021) | Powerplant Airman Certification Standards |
- | | • THE blueprint: 12 General subjects and 166 |
- | | knowledge elements; free PDF on faa.gov |
- +---------------------+---------------------------------------------------+
- | FAA-CT-8080-4G | Airman Knowledge Testing Supplement for Aviation |
- | (2018) | Maintenance Technician — General, Airframe, and |
- | | Powerplant; and Parachute Rigger |
- | | • Complete book of official exam figures & charts |
- +-------------------------------------------------------------------------+
- The 4-Phase High-Yield Study Roadmap
To achieve comprehensive mastery, structure your preparation across four distinct sequential phases over an 8-to-12 week timeframe. +-------------------------------------------------------------------------+
- | THE 4-PHASE STUDY ARCHITECTURE |
- +-------------------------------------------------------------------------+
- | |
- | PHASE 1: Core Foundation & Regulatory Framework (Weeks 1–3) |
- | • Master 14 CFR Parts 1, 21, 39, 43, 65, and 91 |
- | • Deep read of FAA-H-8083-30B (Chapters 1–6) |
- | • Create flashcards for Form 337, ADs, TCDS, and logbook entries |
- | |
- | PHASE 2: Active Calculation & Engineering Principles (Weeks 4–6) |
- | • Solve 100+ Ohm's Law, Kirchhoff's, and power equations |
- | • Master Weight & Balance (Datum, Arm, Moment, Adverse CG, Ballast) |
- | • Work physics problems (Gas laws, mechanical advantage, hydraulics) |
- | |
- | PHASE 3: Hardware, Materials, & Visual Recognition (Weeks 7–8) |
- | • AN/MS bolt head markings, grip lengths, and thread pitch |
- | • Tubing sizing (16ths OD) vs. Hose sizing (16ths ID) |
- | • Schematic symbols, orthographic projections, and NDT methods |
- | |
- | PHASE 4: Timed Mock Testing & ACS Remediation (Weeks 9–10) |
- | • Complete 5+ full-length 60-question timed practice exams (120 min) |
- | • Target 90%+ consistent scoring across all sections |
- | • Remediate missed questions by logging specific ACS codes |
- | |
- +-------------------------------------------------------------------------+
- Active Calculation Mastery: Step-by-Step Problem Solving
The AMG test is calculation-heavy relative to most FAA knowledge tests: Mathematics (AM.I.H), Weight and Balance (AM.I.C), Physics (AM.I.J) and Electricity (AM.I.A) together hold 63 of the 166 Section I knowledge elements, and many are explicitly computational. The FAA does not publish how many of the 60 items are numerical, so do not budget your preparation against a percentage you read somewhere — budget it against your own ability to set up and solve these formulas without hesitation.
Worked Example 1: DC Series-Parallel Circuit Analysis
Problem: In the circuit below, a 28-volt DC bus powers a series resistor R 1 = 4 Ω R_1 = 4\,\Omega R 1 = 4 Ω connected in series with a parallel combination of R 2 = 12 Ω R_2 = 12\,\Omega R 2 = 12 Ω and R 3 = 6 Ω R_3 = 6\,\Omega R 3 = 6 Ω . Determine:
- Total circuit equivalent resistance ( R T R_T R T )
- Total circuit current ( I T I_T I T )
- Voltage drop across the parallel network ( V parallel V_{\text{parallel}} V parallel )
Current flowing through the 6 Ω 6\,\Omega 6 Ω branch ( I 3 I_3 I 3 ) +--------- R1 = 4 Ω ---------+----------+
- | | |
- +---[ + ] [ R2 ] [ R3 ]
- 28V DC 12 Ω 6 Ω
- +---[ - ] | |
- | | |
- +----------------------------+----------+
Step-by-Step Solution:
Calculate the equivalent resistance of the parallel combination ( R p R_p R p ): R p = R 2 ⋅ R 3 R 2 + R 3 = 12 ⋅ 6 12 + 6 = 72 18 = 4 Ω R_p = \frac{R_2 \cdot R_3}{R_2 + R_3} = \frac{12 \cdot 6}{12 + 6} = \frac{72}{18} = 4\,\Omega R p = R 2 + R 3 R 2 ⋅ R 3 = 12 + 6 12 ⋅ 6 = 18 72 = 4 Ω
Calculate total circuit equivalent resistance ( R T R_T R T ): R T = R 1 + R p = 4 Ω + 4 Ω = 8 Ω R_T = R_1 + R_p = 4\,\Omega + 4\,\Omega = 8\,\Omega R T = R 1 + R p = 4 Ω + 4 Ω = 8 Ω
Calculate total circuit current ( I T I_T I T ) using Ohm's Law: I T = E R T = 28 V 8 Ω = 3.5 Amperes I_T = \frac{E}{R_T} = \frac{28\text{ V}}{8\,\Omega} = 3.5\text{ Amperes} I T = R T E = 8 Ω 28 V = 3.5 Amperes
Calculate the voltage drop across series resistor R 1 R_1 R 1 ( V 1 V_1 V 1 ): V 1 = I T ⋅ R 1 = 3.5 A ⋅ 4 Ω = 14 Volts V_1 = I_T \cdot R_1 = 3.5\text{ A} \cdot 4\,\Omega = 14\text{ Volts} V 1 = I T ⋅ R 1 = 3.5 A ⋅ 4 Ω = 14 Volts
Calculate voltage available across parallel network ( V p V_p V p ): V p = E source − V 1 = 28 V − 14 V = 14 Volts V_p = E_{\text{source}} - V_1 = 28\text{ V} - 14\text{ V} = 14\text{ Volts} V p = E source − V 1 = 28 V − 14 V = 14 Volts
Calculate current flowing through the 6 Ω 6\,\Omega 6 Ω branch ( I 3 I_3 I 3 ): I 3 = V p R 3 = 14 V 6 Ω = 2.33 Amperes I_3 = \frac{V_p}{R_3} = \frac{14\text{ V}}{6\,\Omega} = 2.33\text{ Amperes} I 3 = R 3 V p = 6 Ω 14 V = 2.33 Amperes
Worked Example 2: Empty Weight and Center of Gravity (EWCG)
Problem: An aircraft is placed on three scales for weighing. The datum is located at the nose tip. Determine the Empty Weight Center of Gravity (EWCG) given the following data:
- Left Main Gear Scale: 820 lbs (Tare weight: 10 lbs chocks)
- Right Main Gear Scale: 815 lbs (Tare weight: 10 lbs chocks)
- Nose Gear Scale: 385 lbs (Tare weight: 5 lbs chocks)
- Distance from Datum to Main Gear Centerline ( A main A_{\text{main}} A main ): +85 inches
Distance from Datum to Nose Gear Centerline ( A nose A_{\text{nose}} A nose ): +25 inches +-------------------------------------------------------------------------+
- | WEIGHT & BALANCE CALCULATION TABLE |
- +-------------------------------------------------------------------------+
- | Scale Location | Scale (lbs) | Tare (lbs) | Net Wt (lbs) | Arm (in) | Moment (lb-in) |
- +----------------+-------------+------------+--------------+----------+----------------+
- | Left Main | 820 | 10 | 810 | +85 | +68,850 |
- | Right Main | 815 | 10 | 805 | +85 | +68,425 |
- | Nose Gear | 385 | 5 | 380 | +25 | +9,500 |
- +----------------+-------------+------------+--------------+----------+----------------+
- | TOTALS | | | 1,995 | | +146,775 |
- +-------------------------------------------------------------------------+
Calculation: EWCG = Total Moment Total Net Weight = 146 , 775 lb-in 1 , 995 lbs = + 73.57 inches aft of datum \text{EWCG} = \frac{\text{Total Moment}}{\text{Total Net Weight}} = \frac{146,775\text{ lb-in}}{1,995\text{ lbs}} = +73.57\text{ inches aft of datum} EWCG = Total Net Weight Total Moment = 1 , 995 lbs 146 , 775 lb-in = + 73.57 inches aft of datum
Worked Example 3: Gas Law Applied to Hydraulic Accumulators
Problem: A pneumatic hydraulic accumulator has an internal nitrogen pre-charge volume of 120 in 3 120\text{ in}^3 120 in 3 at a pre-charge pressure of 600 psig 600\text{ psig} 600 psig at 70 ∘ F 70^\circ\text{F} 7 0 ∘ F . When hydraulic system pressure reaches 3 , 000 psig 3,000\text{ psig} 3 , 000 psig at constant temperature, what is the compressed nitrogen volume ( V 2 V_2 V 2 )?
Formula (Boyle's Law at constant temperature): P 1 ⋅ V 1 = P 2 ⋅ V 2 ⟹ V 2 = P 1 ⋅ V 1 P 2 P_1 \cdot V_1 = P_2 \cdot V_2 \implies V_2 = \frac{P_1 \cdot V_1}{P_2} P 1 ⋅ V 1 = P 2 ⋅ V 2 ⟹ V 2 = P 2 P 1 ⋅ V 1
Note: Always convert gauge pressure (psig) to absolute pressure (psia) by adding atmospheric pressure ( 14.7 psi 14.7\text{ psi} 14.7 psi ):
P 1 = 600 + 14.7 = 614.7 psia P_1 = 600 + 14.7 = 614.7\text{ psia} P 1 = 600 + 14.7 = 614.7 psia
P 2 = 3 , 000 + 14.7 = 3 , 014.7 psia P_2 = 3,000 + 14.7 = 3,014.7\text{ psia} P 2 = 3 , 000 + 14.7 = 3 , 014.7 psia V 2 = 614.7 psia ⋅ 120 in 3 3 , 014.7 psia = 73 , 764 3 , 014.7 = 24.47 in 3 V_2 = \frac{614.7\text{ psia} \cdot 120\text{ in}^3}{3,014.7\text{ psia}} = \frac{73,764}{3,014.7} = 24.47\text{ in}^3 V 2 = 3 , 014.7 psia 614.7 psia ⋅ 120 in 3 = 3 , 014.7 73 , 764 = 24.47 in 3
Exam-Day Pacing & Test-Taking Strategies
With 60 questions and 120 minutes, you have an average of 2 minutes per question . Implement the 3-Pass Strategy on testing day: +-------------------------------------------------------------------------+
- | THE 3-PASS EXAM EXECUTION STRATEGY |
- +-------------------------------------------------------------------------+
- | |
- | PASS 1: Rapid Recall & Direct Concepts (Minutes 0–40) |
- | • Answer all direct factual, regulatory, and definition questions |
- | • Instantly identify answers you know with 100% confidence |
- | • Flag all calculation, diagram, and complex schematic questions |
- | • Target: 30–35 questions completed; bank remaining time |
- | |
- | PASS 2: Calculations, Schematics, & Supplement Lookup (Minutes 40–85) |
- | • Solve flagged calculation problems step-by-step on scratch paper |
- | • Open FAA-CT-8080-4G supplement figures and verify figure labels |
- | • Double-check decimal points, units (amps vs. milliamps, in vs. ft) |
- | • Target: Complete remaining 25–30 questions |
- | |
- | PASS 3: Review Flagged Items & Sanity Check (Minutes 85–105) |
- | • Revisit difficult questions; employ systematic distractor elimination|
- | • Ensure NO questions are left unanswered (no guessing penalty) |
- | • Verify scratchpad numbers match selected computer choices |
- | |
- | FINAL BUFFER (Minutes 105–120) |
- | • Final submission review; breathe and confirm score |
- +-------------------------------------------------------------------------+
- Distractor Deconstruction & Elimination Rules
Metric vs. Imperial Units: Watch out for questions giving dimensions in millimeters when the formula expects inches, or grams vs. pounds.
Gauge vs. Absolute Pressure: In pneumatic calculations, distractors frequently use psig without adding 14.7 psi.
14 CFR Part Confusion: Distractors commonly swap Part 43 (Maintenance/Alterations) with Part 91 (General Operating Rules) or Part 65 (Certification).
Inverted Formulas: In electrical circuits, distractors invert parallel resistance formulas ( R T = R 1 + R 2 R_T = R_1 + R_2 R T = R 1 + R 2 instead of reciprocal addition).