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NCAA PPL Air Law study materials
NCAA PPL Air Law study resources

NCAA PPL Air Law practice questions

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Question 1Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Under the Nigerian Civil Aviation Regulations, which document primarily prescribes the rules of the air and the obligations of pilots and operators in Nigeria?

  1. The Nigerian Civil Aviation Regulations (Nig. CARs) issued by the NCAA Correct answer.
  2. The Nigerian Customs Tariff Act
  3. The airline's operations manual alone
  4. The Chicago Convention Annex 1 only

Explanation

The Nigerian Civil Aviation Regulations are the national rules issued by the Nigerian Civil Aviation Authority and give effect to ICAO Standards and Recommended Practices within Nigeria. Annexes to the Chicago Convention guide states, but the binding domestic instrument for pilots and operators is the Nig. CARs.

Question 2Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Which body is the civil aviation authority responsible for regulating and overseeing civil aviation safety in Nigeria?

  1. The Federal Airports Authority of Nigeria
  2. The Nigerian Airspace Management Agency
  3. The Nigerian Civil Aviation Authority Correct answer.
  4. The Accident Investigation Bureau

Explanation

The Nigerian Civil Aviation Authority (NCAA) is the regulator that issues licences, certificates and regulations and conducts oversight of civil aviation in Nigeria. NAMA provides air navigation services, FAAN manages airports, and the AIB investigates accidents.

Question 3Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A private pilot plans a flight and wants to know the minimum fuel that must be carried. Which source states the binding requirement in Nigeria?

  1. The aircraft flight manual performance section alone
  2. The local flying club's standard operating procedures
  3. The Nig. CARs provisions on fuel and oil supply Correct answer.
  4. ICAO Annex 2 as a directly enforceable national law

Explanation

Fuel and oil requirements for flight are prescribed in the Nig. CARs, which set the legal minimum for planning and in-flight reserves. The flight manual gives performance data but does not by itself establish the regulatory minimum.

Question 4Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Under the ICAO framework, which annex deals with Rules of the Air?

  1. Annex 2 Correct answer.
  2. Annex 11
  3. Annex 14
  4. Annex 8

Explanation

ICAO Annex 2 contains the international Standards and Recommended Practices for Rules of the Air. The other annexes address different subjects such as airworthiness, air traffic services and aerodromes.

Question 5Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the primary purpose of a Certificate of Airworthiness issued for a Nigerian-registered aircraft?

  1. To certify that the aircraft conforms to its type design and is safe for flight Correct answer.
  2. To certify that the operator is financially solvent
  3. To authorise the pilot to fly in controlled airspace
  4. To record the aircraft's maintenance expenditure

Explanation

A Certificate of Airworthiness confirms that the aircraft conforms to an approved type design and is in a condition for safe operation. It is issued following airworthiness certification under the Nig. CARs.

Question 6Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot's medical certificate has lapsed but the licence itself remains valid. What is the correct regulatory position for acting as pilot-in-command of a civil aircraft in Nigeria?

  1. The pilot may fly for up to 30 days while the renewal is processed
  2. The pilot may fly if accompanied by a current instructor
  3. The pilot may fly only within the local aerodrome traffic circuit
  4. The pilot may not exercise the privileges of the licence until the medical certificate is renewed Correct answer.

Explanation

The privileges of a flight crew licence depend on holding a valid medical certificate appropriate to the licence. Once the medical certificate lapses, the pilot may not exercise licence privileges until it is renewed.

Question 7Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

In radio telephony, what does the phrase 'MAYDAY' signify?

  1. A distress situation requiring immediate assistance Correct answer.
  2. A routine position report
  3. An urgency situation requiring assistance but no immediate danger
  4. A request for a change of cruising level

Explanation

MAYDAY is the international distress signal used when an aircraft is threatened by serious or imminent danger and requires immediate assistance. It has priority over all other communications.

Question 8Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Which of the following best describes the role of the International Civil Aviation Organization in relation to national law?

  1. It issues pilot licences valid in all member states without national endorsement
  2. It adopts Standards and Recommended Practices that states implement through national regulations Correct answer.
  3. It directly prosecutes pilots for breaches of the rules of the air
  4. It operates all air traffic control towers in member states

Explanation

ICAO adopts Standards and Recommended Practices in its annexes, which member states implement through their own national regulations. ICAO does not itself licence individuals, prosecute offences or provide air traffic control.

Question 9Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

An aircraft is being operated for remuneration and hire. Under the Nig. CARs, which type of operating certificate is normally required?

  1. A certificate of registration only
  2. A private pilot licence endorsement
  3. A radio station licence
  4. An air operator certificate Correct answer.

Explanation

Commercial air transport operations for remuneration and hire require the operator to hold an air operator certificate issued by the NCAA. The certificate confirms the operator meets the organisational, operational and maintenance requirements.

Question 10Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the significance of the aircraft nationality and registration marks displayed on a Nigerian-registered aircraft?

  1. They indicate the aircraft's maximum take-off mass category
  2. They certify the pilot's licence validity
  3. They identify the state of registry and the individual aircraft Correct answer.
  4. They show the aircraft's maintenance release status

Explanation

The nationality mark identifies the state of registry and the registration mark identifies the individual aircraft. Together they provide unique identification required under the Chicago Convention and the Nig. CARs.

Question 11Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot receives an instruction from air traffic control that conflicts with an immediate safety concern, such as a traffic alert. What is the correct action under the rules of the air?

  1. Advise ATC and take action to maintain safe separation, then inform ATC Correct answer.
  2. Disregard the instruction silently and continue
  3. Land immediately at the nearest aerodrome without advising ATC
  4. Comply with the instruction regardless of the safety concern

Explanation

The pilot in command has final authority for the safety of the aircraft and may deviate from an instruction when necessary for safety. The pilot should advise ATC of the deviation and the reason as soon as practicable.

Question 12Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Which condition must be met before a pilot may operate under visual flight rules in controlled airspace in Nigeria?

  1. The aircraft must be certified for known icing
  2. The pilot must hold an instrument rating in all cases
  3. The flight must be conducted above 10,000 feet
  4. The flight must maintain the prescribed flight visibility and distance from cloud, and receive any required clearance Correct answer.

Explanation

VFR flight requires compliance with the prescribed meteorological minima for visibility and cloud separation and, in controlled airspace, an ATC clearance where required. An instrument rating is not a general precondition for VFR flight.

Question 13Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the purpose of the Minimum Equipment List approved for an aircraft?

  1. To record the aircraft's scheduled maintenance intervals
  2. To specify the minimum fuel for each route
  3. To allow operation with specified equipment inoperative under defined conditions Correct answer.
  4. To list the minimum crew required for each flight

Explanation

The Minimum Equipment List allows dispatch with particular items of equipment inoperative, subject to stated conditions and limitations, while preserving an acceptable level of safety. It is approved for the specific aircraft type and operator.

Question 14Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

In the event of an aircraft accident in Nigeria, which body is responsible for the independent investigation of the occurrence?

  1. The Accident Investigation Bureau Correct answer.
  2. The Federal Airports Authority of Nigeria
  3. The Nigerian Airspace Management Agency
  4. The Nigerian Civil Aviation Authority

Explanation

Accident investigation is carried out independently of the regulator and service providers, and in Nigeria this is the responsibility of the Accident Investigation Bureau. The purpose is to determine causes and prevent recurrence, not to apportion blame.

Question 15Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot's licence shows an expiry date. What is the standard regulatory consequence if the pilot continues to exercise licence privileges after that date?

  1. The licence is automatically extended by 60 days
  2. The pilot is exercising privileges without a valid licence, which is an offence Correct answer.
  3. The flight is valid if the aircraft is airworthy
  4. The flight is valid provided it is conducted in daylight

Explanation

A licence is valid only for the period stated on it, and exercising privileges after expiry constitutes an offence under the Nig. CARs. Airworthiness of the aircraft or time of day does not cure the lack of a valid licence.

Question 16Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What does the term 'controlled flight into terrain' describe in accident prevention terminology?

  1. An airworthy aircraft flown into terrain, water or an obstacle without prior awareness by the crew Correct answer.
  2. Structural failure of the aircraft in flight
  3. A collision between two aircraft on the ground
  4. An aircraft intentionally flown below minimum safe altitude during a display

Explanation

Controlled flight into terrain occurs when an airworthy aircraft is flown into terrain, water or an obstacle, typically because the crew was unaware of the developing situation. It is a recognised accident category addressed through training and warning systems.

Question 17Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Under the Nig. CARs, what is the general requirement concerning the carriage of documents on board an aircraft engaged in international flight?

  1. Only the aircraft radio licence is required
  2. Documents may be left at the departure aerodrome if the flight is under two hours
  3. Only the pilot's logbook need be carried
  4. The certificate of registration, certificate of airworthiness, licences and journey log are among the documents to be carried Correct answer.

Explanation

Aircraft engaged in international flight must carry prescribed documents including the certificate of registration, certificate of airworthiness, crew licences and the journey log, among others. These are the documents listed in the regulations and in ICAO Annex 6.

Question 18Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the significance of a 'type certificate' compared with a 'certificate of airworthiness'?

  1. The type certificate is issued to each individual aircraft, while the certificate of airworthiness covers the design
  2. The type certificate approves the design of an aircraft type, while the certificate of airworthiness confirms an individual aircraft conforms to that design Correct answer.
  3. The type certificate replaces the need for maintenance inspections
  4. Both documents are issued only to operators, not manufacturers

Explanation

The type certificate approves the design of an aircraft type as meeting the applicable airworthiness requirements. The certificate of airworthiness is issued for an individual aircraft confirming it conforms to the approved type design and is safe for flight.

Question 19Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot operating in Nigeria notices that the aircraft's altimeter setting is set to the standard pressure value while flying below the transition altitude. What is the correct interpretation?

  1. The altimeter indicates altitude above mean sea level correctly
  2. The altimeter is indicating cabin pressure altitude
  3. The altimeter indicates height above the aerodrome
  4. The altimeter indicates flight level rather than altitude Correct answer.

Explanation

When the altimeter is set to the standard pressure value, the instrument indicates flight levels rather than altitude above mean sea level. Below the transition altitude the local pressure setting should be used so that the altimeter indicates altitude.

Question 20Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the purpose of the 'read-back' requirement in air traffic control communications?

  1. To enable the pilot to request a different clearance
  2. To confirm that the aircraft radio is serviceable
  3. To allow the pilot to repeat the instruction so the controller can verify correct reception Correct answer.
  4. To permit the controller to record the pilot's voice for training

Explanation

Read-back requires the pilot to repeat safety-related clearances and instructions so that the controller can verify they were correctly received and understood. It is a key defence against communication errors.

Question 21Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

An operator wishes to conduct a flight carrying dangerous goods. Which statement best reflects the regulatory requirement in Nigeria?

  1. Dangerous goods may be carried freely if the pilot agrees
  2. Carriage must comply with the Technical Instructions and the operator must be appropriately approved and trained Correct answer.
  3. Dangerous goods may only be carried on cargo aircraft without any documentation
  4. Dangerous goods carriage is prohibited entirely in Nigerian airspace

Explanation

Carriage of dangerous goods must follow the ICAO Technical Instructions as reflected in the Nig. CARs, and the operator and personnel must be approved and trained as required. Proper documentation and acceptance procedures are mandatory.

Question 22Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot is unsure whether a particular maintenance action may be certified by the pilot before flight. Which principle applies under the Nig. CARs?

  1. Only maintenance authorised by the regulations and within the pilot's approval may be certified, otherwise a licensed engineer is required Correct answer.
  2. The operator's dispatcher may certify maintenance
  3. Maintenance certification is unnecessary if the defect is minor
  4. Any pilot may certify any maintenance action on any aircraft

Explanation

Certification of maintenance is limited to persons authorised under the regulations, such as appropriately licensed engineers, with narrow provision for pilot-authorised action in specified circumstances. Unauthorised certification would compromise airworthiness.

Question 23Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

How does the Nigerian Civil Aviation Regulations relate to ICAO annexes in cases where a national rule differs from an ICAO Standard?

  1. Differences are permitted only for annexes dealing with personnel licensing
  2. The national rule automatically prevails and no notification is needed
  3. The state must notify ICAO of any difference between its regulations and the Standard Correct answer.
  4. The ICAO Standard overrides national law in all cases

Explanation

Under the Chicago Convention, a state that finds it impracticable to comply with an international Standard must notify ICAO of the difference. National regulations remain the binding domestic law, but the difference must be notified.

Question 24Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot operating a Nigerian-registered aircraft abroad is accused of a breach of the rules of the air. Which state generally has jurisdiction over the offence?

  1. The state of registry and, where the offence occurs in its territory, the state of occurrence may both have jurisdiction Correct answer.
  2. Only ICAO may determine jurisdiction
  3. Only the state whose airspace was entered
  4. Only the state where the aircraft is registered

Explanation

The state of registry has jurisdiction over aircraft registered in that state, while the state in whose territory an offence occurs may also exercise jurisdiction. The Chicago Convention and national law address these overlapping bases.

Question 25Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

In the context of the Nig. CARs, what is the effect of an aircraft being operated beyond its approved flight envelope limitations?

  1. The flight remains lawful if the pilot holds a valid instrument rating
  2. The operation is outside the approved limitations and may invalidate the airworthiness basis of the flight Correct answer.
  3. The aircraft's certificate of airworthiness is automatically suspended for 24 hours
  4. The operator may continue if the exceedance is recorded in the technical log

Explanation

Operating beyond approved limitations means the aircraft is being used outside the conditions of its type design and airworthiness approval. Such an exceedance must be assessed and may render the flight unlawful until the aircraft is inspected and returned to an airworthy condition.

Question 26Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Under the Nig. CARs, which document principally establishes that an aircraft conforms to its approved type design and is safe to operate, being issued after maintenance and inspection?

  1. The noise certificate
  2. The certificate of airworthiness Correct answer.
  3. The type certificate
  4. The certificate of registration

Explanation

The certificate of airworthiness is issued for an individual aircraft after it is shown to conform to its approved type design and to be in a condition for safe operation. It is kept valid through continuing maintenance and inspection under the regulations. The type certificate approves the design itself, not a particular aircraft.

Question 27Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Which instrument constitutes the international treaty under which states such as Nigeria harmonise rules for civil aviation safety and navigation?

  1. The Convention on International Civil Aviation (Chicago Convention) Correct answer.
  2. The Montreal Protocol on Substances
  3. The Warsaw Convention
  4. The Geneva Convention on the High Seas

Explanation

The Chicago Convention of 1944 is the multilateral treaty that established the framework for international civil aviation and created ICAO. Nigeria is a contracting state and gives effect to the Convention through national legislation and the Nig. CARs. The other instruments address different subject matter.

Question 28Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

For an aircraft engaged in international air navigation, which set of documents must generally be carried on board under the Nig. CARs?

  1. Only the certificate of registration and the pilot's personal logbook
  2. Certificate of registration, certificate of airworthiness, crew licences and journey log Correct answer.
  3. Only the operations manual and the maintenance schedule
  4. Only the aircraft radio licence and the insurance policy

Explanation

The regulations require the core aircraft and crew documents to be carried on board, typically the certificate of registration, the certificate of airworthiness, the crew licences and the journey log book, among others. These documents evidence nationality, airworthiness and crew competence. A partial set does not satisfy the requirement.

Question 29Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What does the term 'aerodrome traffic zone' describe in the context of Nigerian air navigation regulation?

  1. The passenger terminal and apron area where aircraft are parked
  2. The airspace above the flight level at which standard pressure is set
  3. Airspace of defined dimensions established around an aerodrome for the protection of aerodrome traffic Correct answer.
  4. The runway strip cleared of obstacles for take-off and landing

Explanation

An aerodrome traffic zone is airspace of defined dimensions around an aerodrome, established to protect traffic in the vicinity of the aerodrome. It is an airspace concept, not a ground surface area. Pilots must comply with the rules applicable within that zone.

Question 30Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the primary purpose of the aircraft journey log book required under the Nig. CARs?

  1. To record the pilot's total flying hours for licence renewal
  2. To record the fuel and oil purchased for the aircraft
  3. To record the maintenance tasks certified by engineers
  4. To record the aircraft's flights, including departure and arrival points and details of the flight Correct answer.

Explanation

The journey log book is an aircraft document that records particulars of each flight, such as departure and arrival points, times and relevant flight details. It provides a continuous record of the aircraft's operation. It is distinct from personal flying records and maintenance records.

Question 31Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

In Nigerian civil aviation, which authority is empowered to issue and renew licences, certificates and approvals for flight crew and aircraft?

  1. The Accident Investigation Bureau
  2. The Federal Airports Authority of Nigeria
  3. The Nigerian Airspace Management Agency
  4. The Nigerian Civil Aviation Authority Correct answer.

Explanation

The Nigerian Civil Aviation Authority is the regulator responsible for issuing and overseeing licences, certificates and approvals in accordance with the Nig. CARs. The other bodies have distinct operational or investigative mandates. Licensing and certification authority rests with the regulator.

Question 32Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What does a 'rating' on a pilot licence authorise the holder to do?

  1. Act as an air traffic controller at a controlled aerodrome
  2. Certify the airworthiness of the aircraft after maintenance
  3. Exercise the privileges of the licence in a specified category, class or type of aircraft or under specified conditions Correct answer.
  4. Operate any aircraft of any category without further endorsement

Explanation

A rating is an endorsement on a licence that specifies the category, class or type of aircraft, or the special conditions, under which the holder may exercise licence privileges. It narrows the scope of the licence to what the holder is qualified and authorised to do. It does not broaden the licence to all aircraft.

Question 33Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the function of the Minimum Equipment List discussed in the Nig. CARs framework?

  1. It identifies equipment that may be inoperative while the aircraft remains airworthy under stated conditions Correct answer.
  2. It specifies the minimum crew required for each type of operation
  3. It lists the minimum fuel required for a flight to the destination
  4. It records the minimum maintenance intervals for components

Explanation

The Minimum Equipment List is derived from the master minimum equipment list and specifies which items may be inoperative, and under what conditions, while the aircraft can still be dispatched. It is a dispatch tool tied to airworthiness. It does not set fuel, crew or maintenance intervals.

Question 34Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A flight crew member holds a licence issued by another contracting state and wishes to fly a Nigerian-registered aircraft on a Nigerian operator's services. What is the general regulatory principle governing validation of that foreign licence?

  1. The licence is invalid in all circumstances and cannot be validated
  2. The licence may be validated by the Nigerian Civil Aviation Authority subject to the conditions it sets Correct answer.
  3. The licence is valid only if the holder also holds a Nigerian passport
  4. The foreign licence is automatically valid in Nigeria without any action

Explanation

The Nig. CARs provide for the validation or acceptance of licences issued by other contracting states, subject to conditions set by the Nigerian Civil Aviation Authority, such as checks and limitations. Automatic acceptance without any regulatory action is not the principle. Nationality of the holder is irrelevant.

Question 35Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

An operator plans a flight and must determine the applicable rules for instrument flight. Which statement correctly reflects the relationship between instrument flight rules and visual flight rules in controlled airspace?

  1. A flight operating under instrument flight rules may be conducted in instrument meteorological conditions and is subject to ATC clearance Correct answer.
  2. A flight operating under visual flight rules may enter instrument meteorological conditions provided the pilot holds an instrument rating
  3. Both sets of rules may be applied simultaneously at the pilot's discretion
  4. Visual flight rules apply only at night and instrument flight rules only by day

Explanation

A flight under instrument flight rules is subject to air traffic control clearance and may be conducted in instrument meteorological conditions. Visual flight rules require specified flight visibility and distance from cloud, so VMC minima must be maintained. The two sets of rules are not applied at the pilot's discretion in a conflicting manner.

Question 36Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Under the Nig. CARs, what is the general obligation of the pilot-in-command regarding the safety of the aircraft and persons on board?

  1. The pilot-in-command has final authority and responsibility for the operation and safety of the aircraft during flight time Correct answer.
  2. The pilot-in-command is responsible only for navigation and not for passenger safety
  3. The pilot-in-command may delegate final authority to the senior cabin crew member
  4. The pilot-in-command shares final authority equally with the operator's dispatcher

Explanation

The pilot-in-command is responsible for the operation and safety of the aircraft during flight time and has final authority over decisions affecting it. This authority is not shared equally with ground personnel, though the pilot may consult them. Responsibility for passengers remains with the pilot-in-command.

Question 37Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

An operator intends to conduct a commercial air transport flight with a single-engine aeroplane at night over water. Which regulatory consideration is most directly relevant?

  1. The aeroplane's colour scheme must be approved before the flight
  2. The operation must comply with the applicable operating limitations and approvals for the type of operation Correct answer.
  3. The operator need only inform the airport manager of the route
  4. Only the pilot's total flying hours determine whether the flight may proceed

Explanation

The Nig. CARs impose operating limitations and approval requirements that depend on the type of operation, aircraft and conditions. Commercial operations over water at night raise specific considerations that must be met within the approved scope. Pilot hours alone, or administrative notifications, do not establish compliance.

Question 38Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the significance of the 'certificate of registration' for a Nigerian-registered aircraft?

  1. It authorises the operator to conduct commercial air transport
  2. It records the aircraft on the national register and establishes its nationality Correct answer.
  3. It certifies that the aircraft meets its type design and is airworthy
  4. It certifies the competence of the flight crew

Explanation

The certificate of registration is evidence that the aircraft is entered on the national register and therefore has Nigerian nationality. It does not attest to airworthiness, operating authorisation or crew competence. Those matters are covered by other certificates and licences.

Question 39Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot is planning a flight and must decide whether the aircraft's altimeter should be set to the aerodrome elevation pressure or to standard pressure. Which principle applies?

  1. The altimeter is set to aerodrome pressure below the transition altitude and to standard pressure at or above the transition level Correct answer.
  2. The altimeter is always set to standard pressure throughout the flight
  3. The altimeter is set to aerodrome pressure at all flight levels
  4. The altimeter setting is chosen by the pilot without reference to any defined level

Explanation

Below the transition altitude the altimeter is set to the appropriate pressure to give altitude above the aerodrome or mean sea level reference, while at or above the transition level standard pressure is used to give flight levels. The transition altitude and level define the changeover. The setting is not a matter of personal choice.

Question 40Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Under the Nig. CARs, what is the general rule concerning the carriage and use of oxygen by crew and passengers on pressurised aircraft?

  1. Oxygen is optional for all flights if the aircraft is pressurised
  2. Oxygen must be available and used when cabin pressure altitude exceeds specified values Correct answer.
  3. Oxygen is required only for flights above 25 000 feet regardless of cabin altitude
  4. Oxygen is required only when passengers request it

Explanation

The regulations require supplemental oxygen to be available and used when the cabin pressure altitude exceeds specified values, protecting occupants against hypoxia. The requirement is linked to cabin pressure altitude rather than the aircraft's actual altitude alone. It is not optional or dependent on passenger request.

Question 41Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What is the principal purpose of the operations specifications issued to an air operator?

  1. To certify the airworthiness of each aircraft in the fleet
  2. To license the individual flight crew members employed by the operator
  3. To define the specific authorisations, limitations and conditions under which the operator may conduct operations Correct answer.
  4. To set the air traffic control procedures for the operator's routes

Explanation

Operations specifications set out the specific authorisations, limitations and conditions attached to an air operator's certificate, such as approved aircraft types, routes and kinds of operation. They define the scope within which the operator may lawfully operate. They do not certify aircraft or license crew.

Question 42Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot becomes aware of a defect that could affect the safety of a flight. Under the Nig. CARs, what is the appropriate regulatory response before flight?

  1. The defect must be addressed in accordance with the approved maintenance procedures before the aircraft is dispatched Correct answer.
  2. The pilot may clear the defect by noting it in the journey log only
  3. The pilot may ignore the defect if the flight is short
  4. The pilot may defer the defect indefinitely without recording it

Explanation

Defects affecting safety must be handled under the approved maintenance and dispatch procedures, including any applicable minimum equipment list provisions, before the aircraft is released. Recording alone does not remedy a defect. Deferral is permitted only where the approved documentation allows it with stated conditions.

Question 43Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

Which statement best describes the effect of a 'standard' ICAO Annex provision when a contracting state files a difference?

  1. The state loses its membership of ICAO
  2. The Annex provision ceases to exist for all states
  3. The state must notify ICAO of the difference and the national rule applies within its territory Correct answer.
  4. The Annex provision automatically overrides the national rule

Explanation

Where a state cannot comply with a standard, it is required to notify ICAO of the difference, and its own national rules apply within its jurisdiction. Annexes are not self-executing over national law. Filing a difference does not affect membership.

Question 44Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A Nigerian-registered aircraft is chartered to a foreign operator for a flight wholly within another state. Which state is primarily responsible for regulating the flight's operation under the leasing arrangements?

  1. The state where the aircraft was manufactured
  2. The state of registry in all cases, regardless of any agreement
  3. The state of nationality of the passengers
  4. The state of the operator, where the functions and duties of the state of registry have been transferred under an agreement Correct answer.

Explanation

Under the international framework reflected in the Nig. CARs, where an aircraft is leased and the functions of the state of registry are transferred to the state of the operator, that state assumes regulatory responsibility for the operation. The transfer must be properly agreed and recorded. Manufacture and passenger nationality are irrelevant.

Question 45Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

What does the term 'dangerous goods' mean in the context of the Nig. CARs and the ICAO technical instructions?

  1. Any cargo weighing more than the aircraft's maximum payload
  2. Articles or substances capable of posing a risk to health, safety, property or the environment when carried by air Correct answer.
  3. Any baggage exceeding the passenger's free allowance
  4. Only radioactive material shipped by governments

Explanation

Dangerous goods are articles or substances capable of posing a significant risk to health, safety, property or the environment, as classified in the technical instructions. The definition is based on hazard, not weight or commercial allowance. Carriage is subject to specific regulatory requirements.

Question 46Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

An operator wishes to change the route structure and aircraft types authorised in its operations specifications. What is the correct regulatory approach?

  1. The operator need only inform its insurer of the change
  2. The operator must apply to the Nigerian Civil Aviation Authority for amended operations specifications before conducting the new operations Correct answer.
  3. The operator may amend its own operations specifications without regulatory involvement
  4. The operator may begin the new operations immediately and notify the authority afterwards

Explanation

Operations specifications define the authorised scope of an operator's activities, so changes must be approved by the regulator before the new operations are conducted. The operator cannot unilaterally amend them. Informing an insurer is prudent but does not substitute for regulatory approval.

Question 47Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

How is a 'flight level' defined for the purpose of vertical positioning in controlled airspace?

  1. The altitude above mean sea level measured with the local pressure setting
  2. The distance above the highest terrain within a specified radius
  3. The height above the aerodrome measured with the local pressure setting
  4. A surface of constant atmospheric pressure related to a standard datum of 1013.25 hectopascals Correct answer.

Explanation

A flight level is a surface of constant atmospheric pressure referenced to the standard datum of 1013.25 hectopascals and separated from other such surfaces by specified pressure intervals. It is not a height above the aerodrome or an altitude based on local pressure. This common reference allows aircraft to be separated vertically.

Question 48Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot operating a Nigerian-registered aircraft is alleged to have breached the rules of the air while overflying a foreign contracting state. Which state is generally competent to enforce its rules of the air against the aircraft?

  1. Only the state whose airline sold the ticket
  2. Only the state of manufacture of the aircraft
  3. Only the state of registry, regardless of where the breach occurred
  4. The state whose territory is overflown, in respect of the rules of the air applicable there Correct answer.

Explanation

Under the international framework, the state whose territory is overflown may apply its rules of the air to aircraft in its airspace, while the state of registry also retains jurisdiction over its aircraft. Enforcement is not confined to the state of manufacture or commercial parties. This reflects the territorial basis of air law.

Question 49Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

A pilot is instructed by air traffic control to descend below the minimum safe altitude for the sector in order to maintain separation. How should the pilot analyse the instruction under the Nig. CARs?

  1. The pilot may comply because separation always overrides minimum safe altitude
  2. The pilot must comply without question because ATC has final authority for terrain clearance
  3. The pilot remains responsible for terrain and obstacle clearance and must query or refuse an instruction that would compromise safety Correct answer.
  4. The pilot should comply and report the matter after landing only

Explanation

The pilot-in-command retains responsibility for the safety of the flight, including terrain and obstacle clearance, and must not accept an instruction that would compromise it. ATC provides separation and traffic information but does not relieve the pilot of that responsibility. The correct response is to query or refuse the unsafe instruction.

Question 50Air Law (Nigerian civil aviation legislation, Nig. CARs and ICAO framework)

In the context of the Nig. CARs, what is the effect of operating an aircraft beyond its approved flight envelope or outside its certificate of airworthiness limitations?

  1. The flight is outside the approved airworthiness basis and may invalidate the certificate's protection and the operator's compliance Correct answer.
  2. The flight remains lawful if the pilot holds a valid licence
  3. The flight is lawful if a note is made in the technical log afterwards
  4. The flight is lawful provided the operator's insurance is current

Explanation

Operating beyond the approved envelope or outside certificate limitations removes the flight from the basis on which airworthiness was certified, which can invalidate the certificate's protection and breach the operator's compliance obligations. A valid pilot licence or current insurance does not authorise such operation. A retrospective log note does not cure the breach.