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100+ Free CAAB AME B1.2 Practice Questions

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2026 Statistics

Key Facts: CAAB AME B1.2 Exam

100

Practice Questions

OpenExamPrep

75%

Passing Mark

CAAB ANO Part-66

5 years

Licence Validity

CAAB ANO Part-66

18 years

Minimum Age

CAAB ANO Part-66

Rule 39

AME Licensing Rule

CAR 1984 Bangladesh

150 RPM

Max Magneto Drop

reciprocating engine manuals

The CAAB AME Category B1.2 licence is the professional certification for piston-engine aeroplane maintenance in Bangladesh. The licensing process requires passing written modular examinations (passing score 75%), documenting 2 to 5 years of practical experience, and passing an oral/practical exam. Key modules include Module 11B (Piston Aeroplane systems), Module 16 (Piston Engines), Module 9 (Human Factors), and Module 10 (Aviation Legislation, including CAR 1984).

Sample CAAB AME B1.2 Practice Questions

Try these sample questions to test your CAAB AME B1.2 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1How does presbyopia typically affect an aircraft maintenance engineer's visual capabilities as they age?
A.It causes a loss of color vision, making it difficult to distinguish wiring color codes.
B.It reduces the accommodation range of the eye, making it difficult to focus on objects at close range.
C.It degrades peripheral vision, restricting the lateral field of view during inspection.
D.It reduces night vision capabilities by damaging rod cells in the retina.
Explanation: Presbyopia is a natural aging process where the crystalline lens of the eye loses elasticity. This reduces the eye's ability to accommodate (focus) on close objects, which directly impacts tasks such as reading manuals or inspecting fine details at close range.
2Approximately how long does it take for the human eye to achieve complete dark adaptation when transitioning from bright sunlight to a dark hangar environment?
A.5 to 10 seconds, which is the time required for pupil dilation.
B.2 to 3 minutes, as the cones quickly recover their photopic sensitivity.
C.30 to 40 minutes, which is required for rod cells to regenerate rhodopsin fully.
D.2 to 3 hours, depending on the individual's age and general physical health.
Explanation: While the cones adapt to dark conditions within a few minutes (photopic adaptation), the rods (scotopic adaptation), which are responsible for low-light vision, require 30 to 40 minutes to fully synthesize rhodopsin (visual purple) and reach maximum sensitivity.
3In the context of noise-induced hearing loss (NIHL) in aviation maintenance, what frequency range is typically affected first?
A.Low frequencies between 100 Hz and 500 Hz, which correspond to reciprocating engine intake noise.
B.Mid frequencies between 1,000 Hz and 2,000 Hz, where human speech is most prominent.
C.High frequencies around 4,000 Hz, showing a characteristic 'noise notch' on an audiogram.
D.Ultra-high frequencies above 15,000 Hz, which are felt as vibration rather than heard.
Explanation: Prolonged exposure to high-intensity noise damages the hair cells in the cochlea. On an audiogram, noise-induced hearing loss typically shows a localized loss or 'notch' at 4,000 Hz (4 kHz notch) before spreading to lower and higher frequencies.
4What is the typical storage capacity and duration limit of the human working (short-term) memory when not using rehearsal strategies?
A.2 to 3 items, stored for up to 5 seconds.
B.7 ± 2 items, stored for approximately 10 to 20 seconds.
C.15 to 20 items, stored for up to 2 minutes.
D.An unlimited number of items, stored for up to 30 minutes.
Explanation: George Miller's research established that working memory has a limited capacity of 7 ± 2 chunks of information. Without active rehearsal or encoding strategies, items in working memory decay and are lost within 10 to 20 seconds.
5During a busy maintenance shift, an engineer is interrupted while torqueing a cylinder head. How does divided attention contribute to a subsequent maintenance error in this scenario?
A.It increases the engineer's overall cognitive processing speed, causing them to rush through the task.
B.It forces task-switching, which creates a cognitive bottleneck and increases the risk of omitting steps when returning to the primary task.
C.It degrades the engineer's peripheral vision, preventing them from noticing the correct torque values.
D.It causes temporary hearing loss, making it difficult to hear verbal warnings from colleagues.
Explanation: Divided attention requires switching focus between tasks. Interruptions force the working memory to store the state of the primary task. When task-switching occurs, the engineer may experience an 'omission error' upon returning, assuming they completed a step (like final torqueing) when they had only completed it partially.
6Which of the following time windows represents the lowest point (circadian trough) of human alertness and body temperature under normal conditions?
A.08:00 to 10:00 and 20:00 to 22:00
B.12:00 to 14:00 and 18:00 to 20:00
C.02:00 to 06:00 and 14:00 to 16:00
D.22:00 to 00:00 and 06:00 to 08:00
Explanation: The human circadian rhythm has two natural periods of drowsiness and reduced alertness, known as circadian troughs. The primary trough occurs in the early morning between 02:00 and 06:00, and a secondary, milder trough occurs in the afternoon between 14:00 and 16:00.
7What is a primary physiological symptom and safety hazard associated with a cumulative sleep debt in shift workers?
A.An increase in visual accommodation speed, leading to double vision.
B.The occurrence of micro-sleeps, which are involuntary periods of sleep lasting from a fraction of a second to several seconds.
C.A progressive reduction in the body's baseline core temperature below 35°C.
D.An acute increase in high-frequency hearing sensitivity, causing auditory overload.
Explanation: Cumulative sleep debt occurs when an individual consistently gets less than their required sleep. A major hazard is micro-sleeps—uncontrollable, brief episodes of sleep that can occur while the person is awake, during which they are completely unresponsive to environmental cues.
8How does the Yerkes-Dodson Law describe the relationship between arousal (stress/stimulation) and human task performance?
A.Performance increases linearly with arousal; higher stress always leads to faster, more accurate work.
B.Performance decreases linearly with arousal; any level of stress degrades task execution.
C.Performance is optimal at moderate arousal levels, forming an inverted U-shaped curve where performance drops at both very low and very high arousal.
D.Performance is completely unaffected by arousal levels, remaining constant across all stress conditions.
Explanation: The Yerkes-Dodson Law states that performance is an inverted-U function of arousal. Low arousal (boredom, fatigue) leads to inattention and errors. As arousal increases, performance improves up to an optimal point. Beyond this point, high arousal (hyper-stress, panic) causes cognitive overload and rapid performance degradation.
9In social psychology, how does the 'Asch effect' or conformity pressure manifest as a threat in an aircraft hangar environment?
A.An engineer works faster than average to prove their competence to the peer group.
B.An engineer agrees with a group's incorrect technical opinion or sign-off decision to avoid standing out or causing conflict.
C.A supervisor delegates all responsibility to the team, resulting in a loss of authority.
D.The maintenance team experiences shared physical symptoms of fatigue due to poor working conditions.
Explanation: The Asch conformity experiments showed that individuals will often conform to a majority opinion, even when they know it is incorrect. In maintenance, an engineer might accept an improper repair technique or sign off on an unchecked system because the rest of the team or senior colleagues assert it is acceptable, fearing social isolation if they object.
10Which of the following is a primary symptom of 'Groupthink' within a maintenance team?
A.Active encouragement of minority viewpoints and detailed debate during briefings.
B.An illusion of invulnerability and collective rationalization of decisions that bypass standard safety procedures.
C.High rates of individual turnover due to personal conflicts between engineers.
D.Consistent failure of the team to reach consensus, resulting in delayed maintenance releases.
Explanation: Groupthink is a psychological phenomenon where the desire for harmony in a decision-making group overrides realistic appraisal of alternatives. Symptoms include an illusion of invulnerability, collective rationalization of shortcuts, belief in the group's inherent morality, and pressure on dissenters to conform.

About the CAAB AME B1.2 Exam

The CAAB Aircraft Maintenance Engineer (AME) Category B1.2 Licence allows holders to issue Certificates of Release to Service (CRS) following maintenance on piston-engine aeroplanes, covering the airframe structure, systems, and engines. Obtaining the license requires passing written modular examinations under ANO (AW) Part-66, passing an oral/practical inspection, and documenting relevant aircraft maintenance experience.

Assessment

Multiple-choice modular examinations (questions vary by module)

Time Limit

Varies by module

Passing Score

75%

Exam Fee

Check CAAB e-Exam portal (caab.aspeqexams.com) for current fees in BDT (Civil Aviation Authority of Bangladesh (CAAB))

CAAB AME B1.2 Exam Content Outline

30%

Module 11B: Piston Aeroplane Aerodynamics, Structures and Systems

Theory of flight, flight control systems, airframe construction, landing gear, hydraulic/pneumatic, fuel, electrical, and instrument systems

30%

Module 16: Piston Engine

Reciprocating engine theory, displacement and power calculations, cylinder choke-boring, carburetors, fuel injection, dual magneto ignition, turbocharging, lubrication, cooling, and propellers

20%

Module 9: Human Factors

Vision and hearing physiology, working memory, attention and distraction, fatigue, stress, social psychology (conformity/groupthink), shift handovers, SHELL model, and error classification

20%

Module 10: Aviation Legislation

Bangladesh Civil Aviation Rules 1984 (Rule 39, Rule 190), CAAB Air Navigation Orders (ANO AW Part-66), Certificate of Release to Service (CRS), logbook records, and Airworthiness Directives

How to Pass the CAAB AME B1.2 Exam

What You Need to Know

  • Passing score: 75%
  • Assessment: Multiple-choice modular examinations (questions vary by module)
  • Time limit: Varies by module
  • Exam fee: Check CAAB e-Exam portal (caab.aspeqexams.com) for current fees in BDT

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 B1.2 Study Tips from Top Performers

1For Module 10, study the specific rule numbers in the Bangladesh Civil Aviation Rules 1984, particularly Rule 39 (Licensing) and Rule 190 (Maintenance Organizations).
2Understand the difference between a manufacturer's Service Bulletin (SB) and a regulator's Airworthiness Directive (AD) regarding compliance authority.
3For Module 9, memorize visual adaptation times (rods require 30-40 minutes) and the 4 kHz hearing notch indicator.
4Know the SHELL and Swiss Cheese models, and understand the difference between active failures and latent conditions.
5For Module 11B, practice aerodynamic calculations (aspect ratio, lift equation variables) and landing gear components (shimmy damper, master cylinders).
6For Module 16, study the Otto cycle sequence, compression ratio formula, cylinder choke-boring thermodynamics, and the magneto check limits (150 RPM drop max).
7Understand the constant-speed propeller governor flyweight positions during overspeed and underspeed conditions.
8Ensure your maintenance experience logbook tasks are structured to align directly with the Part-66 basic syllabus.

Frequently Asked Questions

What is the CAAB AME Licence Category B1.2?

The B1.2 licence is the Aircraft Maintenance Engineer Licence issued by the Civil Aviation Authority of Bangladesh (CAAB) under ANO Part-66. It authorizes the holder to perform and certify maintenance (issuing the Certificate of Release to Service) on piston-engine aeroplanes, covering the airframe structure, systems, and engines.

What modules must be passed for the B1.2 licence?

Candidates must pass modular exams including Module 3 (Electrical Fundamentals), Module 4 (Electronic Fundamentals), Module 5 (Digital Techniques), Module 6 (Materials and Hardware), Module 7B (Maintenance Practices), Module 8 (Basic Aerodynamics), Module 9 (Human Factors), Module 10 (Aviation Legislation), Module 11B (Piston Aeroplane Aerodynamics, Structures & Systems), and Module 16 (Piston Engine).

What is the passing score for the CAAB modular exams?

The minimum passing score for all written AME modular examinations is 75%. Each module is tested separately, and a fail in one module does not affect previously passed modules.

How do I register for the CAAB e-Exams?

Examinations are managed electronically through Aspeq. Candidates must register an account on the official portal at caab.aspeqexams.com, select their target modules, select a testing session in Dhaka, and pay the fee in BDT.

What are the rules regarding repeating a failed AME module?

If a candidate fails an AME modular examination, they must undergo a cooling-off period of 90 days before they can retake the module. This period may be reduced to 30 days if the candidate is enrolled in a CAAB approved Part-147 training organization.

What is the minimum age to hold a CAAB AME Licence?

You must be at least 18 years of age to be issued a basic AME licence under ANO Part-66, although you can sit the modular examinations before reaching this age.