CAAB CPL Theory Exam study guide
CAAB CPL Theory Exam · Work through your exam, one topic at a time.
The CAAB CPL Theory Exam is the ground-subject examination set by the Civil Aviation Authority of Bangladesh for candidates working toward a Commercial Pilot Licence. It is intended for student pilots who have completed (or are completing) approved ground training at a CAAB-recognised flying school and who need to demonstrate theoretical knowledge before and alongside their flight training. The CAAB CPL Theory Exam study guide has 9 sections and about 2,409 words.
01Air Law
Air law questions usually test the hierarchy: the Chicago Convention establishes ICAO and state sovereignty; ICAO Annexes contain Standards and Recommended Practices (SARPs); the State's national legislation and AIP give them legal effect. Know the Annex subjects: Annex 1 licensing, 2 rules of the air, 6 operation of aircraft, 8 airworthiness, 10 communications, 11 ATS, 13 accident investigation, 14 aerodromes, 19 safety management.
263 words, about 1 min02Aircraft General Knowledge
You must understand the layout and purpose of the primary and secondary flight controls, the hydraulic, electrical, fuel, pneumatic and ice-protection systems, and the limitations that follow from them. For piston engines know the four-stroke cycle, mixture control, carburettor icing, detonation and pre-ignition; for turbines know N1/N2, EPR, EGT and the meaning of take-off and continuous limits.
281 words, about 1 min03Flight Performance and Planning
Take-off and landing performance depends on mass, density altitude, wind, runway slope, surface condition and configuration. Distinguish pressure altitude (elevation corrected for QNH) from density altitude (pressure altitude corrected for temperature).
276 words, about 1 min04Human Performance and Limitations
Understand hypoxia, hyperventilation, decompression, acceleration, barotrauma, decompression sickness, carbon monoxide poisoning, noise and vibration. Know the time of useful consciousness falls rapidly with altitude and that hypoxia and hyperventilation share symptoms - dizziness, tingling, confusion - so the response is to use oxygen and descend, not to diagnose on the fly.
253 words, about 1 min05Meteorology
Know the ISA: sea-level temperature 15 °C, pressure 1013.25 hPa, lapse rate 1.98 °C per 1,000 ft, and the tropopause. Stability depends on the environmental lapse rate compared with the dry and saturated adiabatic rates; stable air gives stratiform cloud and steady precipitation, unstable air gives cumuliform cloud, showers and turbulence.
276 words, about 1 min06Navigation
Know the properties of common projections: Mercator is conformal with a straight-line rhumb line but greatly exaggerated scale near the poles; Lambert conformal conic is used for many topographical and airway charts and preserves angles. Distinguish great-circle tracks (shortest distance) from rhumb lines (constant track).
245 words, about 1 min07Operational Procedures
Know the sequence of pre-flight and in-flight checks, fuel policy, mass and balance, performance, ATC clearance and read-back requirements, and the rules for low-visibility, contaminated runway, cold-weather and wake-turbulence operations. Know the emergency frequencies (121.5 MHz VHF, 243.0 MHz UHF), the transponder codes 7700 (emergency), 7600 (radio failure) and 7500 (unlawful interference), and the general emergency priorities: aviate, navigate, communicate.
267 words, about 1 min08Principles of Flight
Lift depends on air density, true airspeed squared, wing area and lift coefficient; angle of attack, not speed alone, determines the stall. The critical angle of attack is fixed for a given configuration, so an aircraft can stall at any speed, attitude or power setting.
288 words, about 1 min09Communications (VFR and IFR)
Learn the phonetic alphabet, standard words and phrases (roger, wilco, affirm, negative, say again, standby, request, cleared, hold short) and the meaning of read-back requirements. Distinguish distress (MAYDAY, repeated three times) from urgency (PAN PAN, repeated three times).
260 words, about 1 min