210+ Free CAAB AME B2 Exam Practice Questions

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Key Facts: CAAB AME B2 Exam Exam

12 modules

Required B2 basic-knowledge modules

CAAB ANO Part-66 Issue 3, Appendix II

652 + 4

MCQs plus essays across the separate module examinations

CAAB ANO Part-66 Issue 3, Appendix II

75%

Pass mark for every required module or submodule

CAAB ANO Part-66 Issue 3

210

Original questions in this practice bank, not an official test count

Open Exam Prep practice inventory

The CAAB B2 basic-knowledge path is a series of 12 module examinations. Appendix II specifies 652 MCQs in total across those modules plus four essays, a 75% pass mark for each module or submodule, and no penalty marking. This site provides 210 original comprehensive practice questions.

Sample CAAB AME B2 Exam Practice Questions

Try these sample questions to test your CAAB AME B2 Exam exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 210+ question experience with AI tutoring.

1What is the primary function of the yaw damper system in modern transport aircraft?

A.To assist the pilot in executing coordinated turns

B.To suppress the Dutch roll aerodynamic instability

C.To prevent high-speed spiral divergence

D.To maintain wings-level flight during autopilot engagement

Explanation: The yaw damper system detects yaw rate changes using rate gyroscopes or accelerometers and automatically applies rudder corrections to damp out 'Dutch roll', an aerodynamic instability consisting of out-of-phase rolling and yawing motions.

2An aircraft is tracking an ILS Glide Path of 3.0 degrees. Using the standard rule of thumb, at a distance of 3 nautical miles from the touchdown zone, what should the aircraft's approximate altitude be above the touchdown zone?

A.600 feet

B.900 feet

C.1,200 feet

D.1,500 feet

Explanation: Under standard glide slope conditions (3 degrees), the altitude slope is approximately 300 feet per nautical mile. Therefore, at 3 NM, the altitude should be 3 NM * 300 feet/NM = 900 feet (more precisely: 3 * 6076 * tan(3) = 955 feet).

3In an autopilot loop control system, which components form the 'inner loop' stabilization control?

A.Flight Director, Autopilot Computer, and Servomotor

B.Rate sensors, autopilot computer and control-surface actuators

C.Air Data Computer, Flight Management System, and Autopilot Computer

D.VOR/ILS Receivers, Autopilot Computer, and Flight Director

Explanation: The inner loop of an autopilot system is responsible for attitude stabilization. It senses short-term aircraft dynamics using rate gyroscopes and accelerometers, processes them in the autopilot computer, and commands actuators to damp out oscillations and maintain pitch, roll, and yaw attitude.

4In an 8.33 kHz VHF channel assignment, which displayed channel designators identify the first three 8.33 kHz channels in the 118.000 MHz block?

A.118.000, 118.008 and 118.016

B.118.005, 118.010 and 118.015

C.118.000, 118.025 and 118.050

D.118.000, 118.033 and 118.066

Explanation: For 8.33 kHz operation, the three channel designators in this block are 118.005, 118.010 and 118.015. They correspond respectively to nominal carrier frequencies 118.00000, 118.00833 and 118.01667 MHz. A display of 118.000 identifies the 25 kHz channel, so it is not one of those three 8.33 kHz designators.

5Which ionospheric layer is primarily responsible for reflecting high-frequency (HF) radio waves back to Earth during daytime operations?

A.D layer

B.E layer

C.F1 and F2 layers

D.Troposphere layer

Explanation: During the day, solar radiation splits the F layer into F1 and F2 layers which provide the highest reflection altitude for HF waves. These layers are responsible for long-distance daytime skip communication, while the D layer tends to absorb lower HF frequencies.

6How does an aircraft's SELCAL (Selective Calling) system notify the flight crew of an incoming communication?

A.It automatically transmits a voice response acknowledging the call

B.A two-pair tone code triggers a call light and audio chime

C.It displays the caller's ID and contact number on the PFD

D.It automatically retunes the receiver to the calling ground station

Explanation: A SELCAL system monitors HF/VHF voice channels and decodes a specific four-letter audio tone sequence (two pairs of simultaneous tones) assigned to that specific aircraft. When matched, it sounds an audio chime and illuminates a call indicator light on the flight deck.

7Which listed ELT frequency is a representative channel in the 406.0-406.1 MHz digital satellite-alert band?

A.121.5 MHz

B.243.0 MHz

C.406.025 MHz

D.1090 MHz

Explanation: Modern ELTs transmit digital distress bursts in the 406.0-406.1 MHz band to the Cospas-Sarsat satellite system; 406.025 MHz is a representative assigned channel. The beacon may also provide a low-power 121.5 MHz homing signal for local search teams.

8During a CAAB B2 radio-navigation review, what frequency range is allocated to VOR systems?

A.108.00 MHz to 117.95 MHz

B.329.15 MHz to 335.00 MHz

C.962 MHz to 1213 MHz

D.108.10 MHz to 111.95 MHz

Explanation: VOR operates in the VHF band between 108.00 MHz and 117.95 MHz. The lower portion (108.00 to 111.95 MHz) is shared with ILS localizers, using even-tenths decimal frequencies for VOR stations.

9During VOR bearing computation, which relationship between the received navigation signals identifies the aircraft's radial from the station?

A.By measuring the time delay between a pulse transmission and reception

B.By comparing the phase of 30 Hz reference and variable signals

C.By sensing the null point of a rotating loop antenna

D.By comparing the signal strength of four overlapping antenna lobes

Explanation: A VOR ground station transmits two 30 Hz signals: a reference signal (FM modulated on a subcarrier, transmitted omnidirectionally) and a variable signal (AM modulated, rotated electronically). The phase difference in degrees between these two signals matches the bearing of the aircraft relative to magnetic north.

10Which audio tone modulation frequencies are used by the ILS Localizer to determine lateral deviation from the runway centerline?

A.30 Hz and 90 Hz

B.90 Hz and 150 Hz

C.150 Hz and 400 Hz

D.400 Hz and 1300 Hz

Explanation: The ILS Localizer transmitter projects two overlapping lobes modulated with 90 Hz (left of centerline) and 150 Hz (right of centerline). The receiver compares the Difference in Depth of Modulation (DDM) of these tones to calculate lateral deviation.

About the CAAB AME B2 Exam Exam

CAAB Category B2 is the avionics aircraft-maintenance licence category under ANO Part-66 Issue 3. Its basic-knowledge standard spans 12 modules. Applicants must pass the applicable module examinations and meet the practical-experience requirements before CAAB grants the licence and its certifying privileges.

Assessment

Twelve separate module examinations: Modules 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, and 14. Each MCQ has three alternatives and one correct answer. Modules 7, 9, and 10 also include essays.

Time Limit

Nominally 75 seconds per MCQ; module times range from 25 to 225 minutes, with separate 40-, 20-, and 20-minute essay allocations for Modules 7, 9, and 10

Passing Score

75% for each required module or submodule; no penalty marking

Exam Fee

Not stated in ANO Part-66 Issue 3; confirm with CAAB or the approved Part-147 organization (Civil Aviation Authority of Bangladesh (CAAB))

CAAB AME B2 Exam Exam Content Outline

32 MCQs

Module 1 — Mathematics

Arithmetic, algebra, geometry, graphs, and trigonometry.

52 MCQs

Module 2 — Physics

Matter, mechanics, thermodynamics, optics, waves, and sound.

52 MCQs

Module 3 — Electrical Fundamentals

DC and AC theory, circuits, capacitance, inductance, motors, generators, and transformers.

40 MCQs

Module 4 — Electronic Fundamentals

Semiconductors, printed circuits, and servomechanisms.

72 MCQs

Module 5 — Digital Techniques / Electronic Instrument Systems

Data buses, logic, computers, displays, fibre optics, electromagnetic environment, and electronic systems.

60 MCQs

Module 6 — Materials and Hardware

Aircraft materials, corrosion, fasteners, pipes, springs, bearings, transmissions, and cables.

60 MCQs + 2 essays

Module 7 — Maintenance Practices

Safety, tools, drawings, wiring, inspection, procedures, abnormal events, and storage.

20 MCQs

Module 8 — Basic Aerodynamics

Atmospheric physics, aerodynamics, flight theory, stability, and dynamics.

20 MCQs + 1 essay

Module 9 — Human Factors

Human performance, psychology, communication, error, hazards, and maintenance environment.

40 MCQs + 1 essay

Module 10 — Aviation Legislation

Regulation, certifying staff, approved organizations, operations, certification, continuing airworthiness, and reporting.

180 MCQs

Module 13 — Aircraft Aerodynamics, Structures and Systems

Flight controls, instruments, autoflight, communication, navigation, electrical power, equipment, and aircraft systems.

24 MCQs

Module 14 — Propulsion

Turbine-engine construction, performance, systems, indication, starting, ignition, and installation.

How to Pass the CAAB AME B2 Exam Exam

What You Need to Know

Passing score: 75% for each required module or submodule; no penalty marking
Assessment: Twelve separate module examinations: Modules 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, and 14. Each MCQ has three alternatives and one correct answer. Modules 7, 9, and 10 also include essays.
Time limit: Nominally 75 seconds per MCQ; module times range from 25 to 225 minutes, with separate 40-, 20-, and 20-minute essay allocations for Modules 7, 9, and 10
Exam fee: Not stated in ANO Part-66 Issue 3; confirm with CAAB or the approved Part-147 organization

Keys to Passing

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

CAAB AME B2 Exam Study Tips from Top Performers

1Use all 12 required B2 modules as the study checklist; Module 13 is the largest at 180 MCQs, but the remaining modules are still separately passed.

2Practice digital number conversions (binary, octal, hexadecimal, BCD) and understand logic gate circuits for Module 5.

3Thoroughly review the Civil Aviation Rules 1984 and the current CAAB ANO Part-66/145/147 requirements, including Certificate of Release to Service protocols for Module 10.

4Do not underestimate Module 9 (Human Factors); focus on cognitive limitations, maintenance errors, hazards, and communication structures.

Frequently Asked Questions

What is the difference between B1 and B2 AME licences under CAAB?

The Category B1 licence covers mechanical aspects of the aircraft including airframe, engine, and electrical systems, allowing only minor avionics troubleshooting. The Category B2 licence is dedicated to avionic systems, covering radar, communications, instruments, autopilot, flight controls, and electrical power integration.

What is the passing criteria for CAAB AME examinations?

Candidates must earn at least 75% in each required module or submodule. Penalty marking is not used. Modules 7, 9, and 10 also have essay requirements.

What are the experience requirements for a B2 Avionics licence in Bangladesh?

The usual minimum is five years without relevant previous technical training, three years after CAAB-recognized skilled-worker technical training, or two years after an approved Part-147 basic course. CAAB determines whether submitted experience is acceptable.

Are there calculations on the B2 modular examinations?

Yes. Modules such as Module 5 (Digital Techniques) and Module 13/14 involve calculations related to digital data formats, binary/hexadecimal conversions, logic gate truth tables, electrical impedance, and aerodynamic forces.