DGCA Air Regulations: Nationality & Registration Marks Questions
15 exam-style Nationality & Registration Marks questions for the DGCA Air Regulations paper (CPL · ATPL · PPL). The first 12 are free below with answers and explanations — sign up free to practise all of them with progress tracking.
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Q1
Annexure for Registration Marking in ICAO:
- A 14
- B 7
- C 21
- D N/A
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Correct answer: B. 7
The correct answer is B, which refers to Annex 7 of the ICAO documents. This annex specifically deals with the registration and marking of aircraft. It outlines how each aircraft must display its registration mark clearly, similar to how cars have license plates. A common mistake is to confuse this with Annex 14, which focuses on aerodromes and their design standards. Understanding these distinctions helps ensure compliance with international aviation regulations.
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Q2
A common mark used in lieu of nationality mark) is assigned by:
- A State of Registry through ICAO
- B ICAO through the International Telecommunication Union ITU)
- C State of Registry through ITU
- D ICAO Council directly
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Correct answer: B. ICAO through the International Telecommunication Union ITU)
Per ICAO Annex 7 Aircraft Nationality and Registration Marks), a common mark is assigned by ICAO. ICAO obtains the mark from the International Telecommunication Union ITU) radio call sign allocation. The common mark is then used by international operating agencies like IATA pools) in lieu of a nationality mark. The flow is: ITU assigns → ICAO allocates → used as common mark.
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Q3
The Registration mark must consist of letters, numbers, or a combination of both, and will be assigned by:
- A The International Telecommunication Union
- B The state of registry or common mark registering authority
- C The state of registry only
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Correct answer: B. The state of registry or common mark registering authority
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Q4
The common mark must be chosen from the symbols found in the allocated radio call signs.
- A To state of the operator
- B To the International Civil Aviation Organisation by the International Telecommunication Union
- C To the state of registry by the International Civil Aviation Organisation
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Correct answer: B. To the International Civil Aviation Organisation by the International Telecommunication Union
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Q5
Who will assign the common mark to a common mark registration authority?
- A The International Civil Aviation Organisation
- B The state of registry
- C The International Telecommunication Union
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Correct answer: A. The International Civil Aviation Organisation
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Q6
When using letters for registration marks, which combinations should be avoided to prevent confusion with urgent or distress signals?
- A XXX
- B RCC
- C DDD
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Correct answer: A. XXX
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Q7
When using letters for registration marks, which combinations should be avoided to prevent confusion?
- A Three letters combinations used in the international code of signals
- B Four letter combinations beginning with Q
- C Five letter combinations used in the international code of signals
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Correct answer: C. Five letter combinations used in the international code of signals
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Q8
What is the minimum height for the marks on the fuselage and vertical tail surfaces of heavier-than-air aircraft?
- A At least 20 centimetres
- B At least 40 centimetres
- C At least 30 centimetres
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Correct answer: C. At least 30 centimetres
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Q9
What is the minimum height for the marks on lighter-than-air aircraft, excluding unmanned free balloons?
- A 60 centimetres
- B 50 centimetres
- C 1 meter
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Correct answer: B. 50 centimetres
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Q10
When using letters for registration marks, which combinations should be avoided to prevent confusion with urgent signals?
- A LLL
- B PAN
- C RCC
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Correct answer: B. PAN
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Q11
When using letters for registration marks, which combinations should be avoided to prevent confusion with urgent signals?
- A LLL
- B TTT
- C RCC
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Correct answer: B. TTT
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Q12
What is the minimum height of the marks under the wings of heavier-than-air aircraft?
- A 50 centimetres
- B Between 40 and 50 centimetres
- C 60 centimetres
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Correct answer: A. 50 centimetres
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