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150+ Free CAAB AME B1.2 Practice Questions

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2026 Statistics

Key Facts: CAAB AME B1.2 Exam

150

Practice Questions

OpenExamPrep

75%

Passing Mark

CAAB ANO Part-66

13

Applicable Modules

CAAB ANO Part-66

18 years

Minimum Age

CAAB ANO Part-66

5 years

Licence Renewal Interval

CAAB ANO Part-66

B1.2 applicants take the applicable Part-66 module examinations, earning at least 75% in every MCQ and essay part, and document 1 to 3 years of practical maintenance experience depending on prior training. CAAB publishes a different question count and time for each module rather than one combined B1.2 exam.

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 150+ 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 can the human eye require to approach full dark adaptation after moving from bright sunlight into a dark hangar?
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.About 30 to 40 minutes as rod-mediated sensitivity develops.
D.2 to 3 hours, depending on the individual's age and general physical health.
Explanation: Cones adapt comparatively quickly, while the rod system responsible for very low-light vision develops sensitivity much more slowly. A commonly used aviation estimate is roughly 30 minutes, with the time to approach maximum sensitivity varying with prior light exposure, age, and individual physiology; 30 to 40 minutes is the best option given.
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.
4Which practice best helps an aircraft maintenance engineer keep task-critical information available in working memory?
A.Relying on passive exposure to the information without directing attention to it.
B.Actively rehearsing or organizing the limited information while it is needed.
C.Treating working memory as an unlimited store that cannot be displaced by interruptions.
D.Assuming that every item entering working memory is automatically retained in long-term memory.
Explanation: Working memory is limited and vulnerable to interference. Active rehearsal, chunking, written prompts, and orderly task organization help keep task-critical information available; interruption controls are still needed because rehearsal alone does not eliminate omission risk.
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.
6For a person adapted to a normal daytime schedule, when is the principal circadian low in alertness usually expected?
A.During the early morning hours, commonly around 02:00 to 06:00.
B.Only between 08:00 and 10:00, immediately after waking.
C.Only between 14:00 and 16:00, with no early-morning low.
D.At exactly midnight for every person, regardless of schedule or light exposure.
Explanation: The principal circadian low for a normally day-active person occurs in the early morning, commonly described as roughly 02:00 to 06:00. A smaller post-lunch or afternoon reduction in alertness can occur, but it is not the same as the principal early-morning circadian trough. Individual timing varies with schedule and entrainment.
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

CAAB Category B1.2 is the Part-66 aircraft-maintenance licence subcategory for piston-engine aeroplanes. Its certification privileges are exercised within the holder's ratings, limitations, recent-experience requirements, and organisational authorisation. Applicants must meet the basic knowledge and practical-experience requirements in CAAB ANO Part-66.

Assessment

Thirteen applicable Part-66 module exams. Each MCQ has three options and one correct answer; Modules 7, 9, and 10 also include essays.

Time Limit

By module: 25 to 125 minutes for MCQs, plus 20 minutes for each required essay

Passing Score

75% for each module MCQ part and each essay; no negative marking

Exam Fee

Confirm the current per-module fee with CAAB (Civil Aviation Authority of Bangladesh (CAAB))

CAAB AME B1.2 Exam Content Outline

4 practice questions

Module 1: Mathematics

Independent bank coverage; the official B1 module is 32 MCQs in 40 minutes.

6 practice questions

Module 2: Physics

Independent bank coverage; the official B1 module is 52 MCQs in 65 minutes.

7 practice questions

Module 3: Electrical Fundamentals

Independent bank coverage; the official B1 module is 52 MCQs in 65 minutes.

3 practice questions

Module 4: Electronic Fundamentals

Independent bank coverage; the official B1 module is 20 MCQs in 25 minutes.

3 practice questions

Module 5: Digital Techniques and Electronic Instrument Systems

Independent bank coverage; the official B1.2 module is 20 MCQs in 25 minutes.

9 practice questions

Module 6: Materials and Hardware

Independent bank coverage; the official B1 module is 72 MCQs in 90 minutes.

10 practice questions

Module 7: Maintenance Practices

Independent bank coverage; the official B1 module is 80 MCQs plus two essays in 140 minutes.

7 practice questions

Module 8: Basic Aerodynamics

Independent bank coverage; the official B1 module is 20 MCQs in 25 minutes.

20 practice questions

Module 9: Human Factors

Independent bank coverage; the official B1 module is 20 MCQs plus one essay in 45 minutes.

20 practice questions

Module 10: Aviation Legislation

Independent bank coverage; the official B1 module is 40 MCQs plus one essay in 70 minutes.

26 practice questions

Module 11B: Piston Aeroplane Aerodynamics, Structures and Systems

Independent bank coverage; the official B1 module is 100 MCQs in 125 minutes.

28 practice questions

Module 16: Piston Engine

Independent bank coverage; the official B1 module is 72 MCQs in 90 minutes.

7 practice questions

Module 17: Propeller

Independent bank coverage; the official B1 module is 32 MCQs in 40 minutes.

How to Pass the CAAB AME B1.2 Exam

What You Need to Know

  • Passing score: 75% for each module MCQ part and each essay; no negative marking
  • Assessment: Thirteen applicable Part-66 module exams. Each MCQ has three options and one correct answer; Modules 7, 9, and 10 also include essays.
  • Time limit: By module: 25 to 125 minutes for MCQs, plus 20 minutes for each required essay
  • Exam fee: Confirm the current per-module fee with CAAB

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, understand visual adaptation, hearing, circadian disruption, fatigue, communication, and error-management concepts.
4Know the SHELL and Swiss Cheese models, and understand the difference between active failures and latent conditions.
5For Module 11B, connect aerodynamic principles to structures, flight controls, landing gear, hydraulic, fuel, electrical, and cabin systems.
6For Module 16, study the Otto cycle, compression ratio, cylinder construction, fuel metering, ignition, cooling, and manufacturer-specific operating limits.
7For Module 17, understand propeller pitch control, synchronising, ice protection, inspection, and maintenance.
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?

The B1.2 matrix applies Modules 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11B, 16, and 17. Required knowledge levels differ by subtopic, so use the B1.2 column in Appendix I.

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?

Confirm the current application, scheduling, venue, and fee process directly with CAAB or an approved Part-147 organisation. Those operational details are not fixed by the Part-66 Appendix II blueprint.

What are the rules regarding repeating a failed AME module?

A failed module normally cannot be retaken for 90 days. The wait can be 30 days after tailored retraining by an approved Part-147 organisation. A maximum of three consecutive attempts is allowed before a one-year wait for a further set.

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.

How many questions are on the B1.2 examination?

There is no single combined count. CAAB publishes separate module papers ranging from 20 to 100 MCQs for B1.2; Modules 7, 9, and 10 also include essays.