Which of the following is an obligation of being an ICAO contracting state? a. ICAO must be informed about all new flight crew licenses and any suspended validity of such licenses b. ICAO must be informed about differences from the standards detailed in any of the annexes to the Chicago convention c. ICAO must approve the pricing of tickets on international airline connections d. ICAO must be informed about changes to national regulations

Which of the following is an obligation of being an ICAO contracting state?  
a. ICAO must be informed about all new flight crew licenses and any suspended validity  of such licenses  
b. ICAO must be informed about differences from the standards detailed in any of  the annexes to the Chicago convention  
c. ICAO must approve the pricing of tickets on international airline connections  d. ICAO must be informed about changes to national regulations
by

1 Answer

Answer :

b. ICAO must be informed about differences from the standards detailed in any of  the annexes to the Chicago convention
by

Related questions

Which of the following is an obligation of being an ICAO contracting state? a. ICAO must be informed about all new flight crew licenses and any suspended validity of such licenses b. ICAO must be informed about differences from the standards detailed in any of the annexes to the Chicago convention c. ICAO must approve the pricing of tickets on international airline connections d. ICAO must be informed about changes to national regulations

Description : Which of the following is an obligation of being an ICAO contracting state? a. ICAO must be informed about all new flight crew licenses and any suspended validity of such licenses ... of tickets on international airline connections d. ICAO must be informed about changes to national regulations

Last Answer : b. ICAO must be informed about differences from the standards detailed in any of the annexes to the Chicago convention

The International Civil Aviation Organisation (ICAO) establishes: a. Standards and recommended international practices for contracting member states b. Aeronautical standards adopted by all states c. Proposals for aeronautical regulations in the form of 18 annexes d. Standards and recommended practices applied without exception by all states, signatory to the Chicago convention

Description : The International Civil Aviation Organisation (ICAO) establishes: a. Standards and recommended international practices for contracting member states b. Aeronautical standards adopted by all ... recommended practices applied without exception by all states, signatory to the Chicago convention

Last Answer : a. Standards and recommended international practices for contracting member states

The International Civil Aviation Organisation (ICAO) establishes: a. Standards and recommended international practices for contracting member states b. Aeronautical standards adopted by all states c. Proposals for aeronautical regulations in the form of 18 annexes

Description : The International Civil Aviation Organisation (ICAO) establishes: a. Standards and recommended international practices for contracting member states b. Aeronautical standards adopted by all states c. Proposals for aeronautical regulations in the form of 18 annexes

Last Answer : a. Standards and recommended international practices for contracting member states

When a state renders valid a license issued by another Contracting State, as an alternative to issuance of its own license, the validity shall: a. Not extend beyond 15 days after the validity of the license b. Not extend beyond the period of validity of the license c. Be at the discretion of the Contracting State rendering it valid d. Be at the discretion of ICAO

Description : When a state renders valid a license issued by another Contracting State, as an alternative to issuance of its own license, the validity shall: a. Not extend beyond 15 days after the validity of ... at the discretion of the Contracting State rendering it valid d. Be at the discretion of ICAO

Last Answer : b. Not extend beyond the period of validity of the license

When an aircraft subjected to unlawful interference has landed in a Contracting State, it shall notify by the most expeditious means of the State of Registry and the State of the Operator of the landing and, in addition, shall similarly transmit all other relevant information to: a. Each State whose citizens suffered fatalities or injuries, each State whose citizens were detained as hostages, each State whose citizens were known to be on board and ICAO b. ICAO only c. Each State whose citizens were known to be on board only d. ICAO and each State whose citizens were known to be on board only

Description : When an aircraft subjected to unlawful interference has landed in a Contracting State, it shall notify by the most expeditious means of the State of Registry and the State of the Operator of the landing and, ... on board only d. ICAO and each State whose citizens were known to be on board only

Last Answer : a. Each State whose citizens suffered fatalities or injuries, each State whose citizens were detained as hostages, each State whose citizens were known to be on board and ICAO

When refuelling is being conducted with passengers embarking or disembarking: a. Refuelling is strictly prohibited whilst passengers are embarking or disembarking b. All flight crew must be on board c. Communications shall be maintained by ground crew and qualified crew on board d. The stairs shall be fully extended

Description : When refuelling is being conducted with passengers embarking or disembarking: a. Refuelling is strictly prohibited whilst passengers are embarking or disembarking b. All flight crew must be on board c. ... by ground crew and qualified crew on board d. The stairs shall be fully extended

Last Answer : c. Communications shall be maintained by ground crew and qualified crew on board

When a state renders valid a license issued by another Contracting State, as an alternative to issuance of its own license, the validity shall: a. Not extend beyond 15 days after the validity of the license b. Not extend beyond the period of validity of the license c. Be at the discretion of the Contracting State rendering it valid d. Be at the discretion of ICAO

Description : When a state renders valid a license issued by another Contracting State, as an alternative to issuance of its own license, the validity shall: a. Not extend beyond 15 days after the validity of ... Be at the discretion of the Contracting State rendering it valid d. Be at the discretion of ICAO

Last Answer : b. Not extend beyond the period of validity of the license

If no ICAO identifier has been attributed to an aerodrome, what should be entered in Box 16 of the Flight Plan? a. ZZZZ b. NNNN c. A/N d. A/D XXX

Description : If no ICAO identifier has been attributed to an aerodrome, what should be entered in Box 16 of the Flight Plan? a. ZZZZ b. NNNN c. A/N d. A/D XXX

Last Answer : a. ZZZZ

If a pilot lands at an aerodrome other than the destination aerodrome specified in the ICAO flight plan, she must ensure that the ATS unit at the destination is informed within a specified time of her planned ETA at destination. The time is:

Description : If a pilot lands at an aerodrome other than the destination aerodrome specified in the ICAO flight plan, she must ensure that the ATS unit at the destination is informed within a specified time of her planned ETA at destination. The time is:

Last Answer : 30 mins

One way in which passengers can be reassured during an emergency is: a. To regularly see members of the flight crew calmly moving about the cabin in a relaxed manner b. For the captain or first officer to keep a running commentary going over the PA c. For the cabin staff to ensure the passengers are aware of what is happening and that they are complying with instructions d. For the cabin staff to direct passengers’ attention to the emergency passenger brief cards and make sure that they have read them

Description : One way in which passengers can be reassured during an emergency is: a. To regularly see members of the flight crew calmly moving about the cabin in a relaxed manner b. For the ... to direct passengers' attention to the emergency passenger brief cards and make sure that they have read them

Last Answer : c. For the cabin staff to ensure the passengers are aware of what is happening and that they are complying with instructions

Who is responsible for reporting acts of unlawful interference? a. The Commander or the Operator b. The ATCU for the airspace in which the event occurred c. Any member of the flight crew d. Any person on board the aeroplane

Description : Who is responsible for reporting acts of unlawful interference? a. The Commander or the Operator b. The ATCU for the airspace in which the event occurred c. Any member of the flight crew d. Any person on board the aeroplane

Last Answer : a. The Commander or the Operato

During a general briefing at the pre-flight stage, the captain should emphasize: a. The complete delegation of all duties b. The importance of crew coordination c. The priority of departing on schedule d. The avoidance of inadequate handling of controls

Description : During a general briefing at the pre-flight stage, the captain should emphasize: a. The complete delegation of all duties b. The importance of crew coordination c. The priority of departing on schedule d. The avoidance of inadequate handling of controls

Last Answer : b. The importance of crew coordination

At what height is it mandatory for one flight crew deck to wear an oxygen mask? a. 25,000ft b. 32,000ft c. 37,000ft d. 41,000ft

Description : At what height is it mandatory for one flight crew deck to wear an oxygen mask? a. 25,000ft b. 32,000ft c. 37,000ft d. 41,000ft

Last Answer : d. 41,000ft

At what height is it mandatory for one flight crew deck to wear an oxygen mask? a. 25,000ft b. 32,000ft c. 37,000ft d. 41,000ft

Description : At what height is it mandatory for one flight crew deck to wear an oxygen mask? a. 25,000ft b. 32,000ft c. 37,000ft d. 41,000ft

Last Answer : d. 41,000ft

What is required for an IFR flight in advisory airspace? a. No flight plan required b. Flight plan required and PIC must notify of any changes regardless if wanting advisory service or not c. Flight plan required but PIC need not notify of any changes d. A flight plan is only required if advisory service is required

Description : What is required for an IFR flight in advisory airspace? a. No flight plan required b. Flight plan required and PIC must notify of any changes regardless if wanting advisory service or not c ... need not notify of any changes d. A flight plan is only required if advisory service is required

Last Answer : b. Flight plan required and PIC must notify of any changes regardless if wanting advisory service or not

The excess cabin altitude alerting system must operate to warn the crew at: a. 8,000ft b. 10,000ft c. 13,000ft d. 14,000ft

Description : The excess cabin altitude alerting system must operate to warn the crew at: a. 8,000ft b. 10,000ft c. 13,000ft d. 14,000ft

Last Answer : b. 10,000ft

A precision Approach Procedure is defined as: a. An approach using bearing, elevation and distance information b. An approach with a crew of at least 2 pilots trained for such operations c. An instrument approach procedure utilizing azimuth and glide path information provided by an ILS or a PAR

Description : A precision Approach Procedure is defined as: a. An approach using bearing, elevation and distance information b. An approach with a crew of at least 2 pilots trained for such ... An instrument approach procedure utilizing azimuth and glide path information provided by an ILS or a PAR

Last Answer : c. An instrument approach procedure utilizing azimuth and glide path information provided by an ILS or a PAR

You have been intercepted in the airspace of a foreign contracting state. What is the signal for ‘clear to proceed’ from the intercepting aircraft? a. Rocking wings b. Flashing lights c. Cut across track d. Breaking turn up and left

Description : You have been intercepted in the airspace of a foreign contracting state. What is the signal for ‘clear to proceed’ from the intercepting aircraft? a. Rocking wings b. Flashing lights c. Cut across track d. Breaking turn up and left

Last Answer : d. Breaking turn up and left

The stalling speed of an aeroplane is most affected by: a. Changes in air density b. Variations in aeroplane loading c. Variations in flight altitude d. Changes in pitch attitude

Description : The stalling speed of an aeroplane is most affected by: a. Changes in air density b. Variations in aeroplane loading c. Variations in flight altitude d. Changes in pitch attitude

Last Answer : b. Variations in aeroplane loading

When an aircraft subjected to unlawful interference has landed in a Contracting State, it shall notify by the most expeditious means of the State of Registry and the State of the Operator of the landing and, in addition, shall similarly transmit all other relevant information to: a. Each State whose citizens suffered fatalities or injuries, each State whose citizens were detained as hostages, each State whose citizens were known to be on board and ICAO b. ICAO only c. Each State whose citizens were known to be on board only d. ICAO and each State whose citizens were known to be on board only

Description : When an aircraft subjected to unlawful interference has landed in a Contracting State, it shall notify by the most expeditious means of the State of Registry and the State of the Operator of the landing and, ... be on board only d. ICAO and each State whose citizens were known to be on board only

Last Answer : a. Each State whose citizens suffered fatalities or injuries, each State whose citizens were detained as hostages, each State whose citizens were known to be on board and ICAO

When the Captain cannot comply with an ATC clearance: a. The Captain must accept the ATC clearance, because it is based on a filed flight plan b. He/she may request an amended clearance and, if executable, he/she will accept that clearance c. He/she may ask a new clearance and the appropriate ATC must grant him/her that clearance d. He/she may suggest a new clearance to ATC

Description : When the Captain cannot comply with an ATC clearance: a. The Captain must accept the ATC clearance, because it is based on a filed flight plan b. He/she may request an amended clearance and, if ... appropriate ATC must grant him/her that clearance d. He/she may suggest a new clearance to ATC

Last Answer : b. He/she may request an amended clearance and, if executable, he/she will accept that clearance

In the event of cabin depressurization, the actions of the pilot will be to: a. Immediately commence a diversion to a suitable alternate b. Increase engine power to provide additional airflow to the pressurization systems c. Maintain the aeroplane altitude to prevent further damage to the airframe by over loading of the structure d. Commence a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

Description : In the event of cabin depressurization, the actions of the pilot will be to: a. Immediately commence a diversion to a suitable alternate b. Increase engine power to provide additional ... a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

Last Answer : d. Commence a descent to an altitude where the supplemental oxygen supply is sufficient for all crew and passengers

Decision making in emergency situations requires primarily: a. Speed of reaction b. The distribution of tasks and crew coordination c. Strong situational awareness d. The whole crew to focus on the immediate problem

Description : Decision making in emergency situations requires primarily: a. Speed of reaction b. The distribution of tasks and crew coordination c. Strong situational awareness d. The whole crew to focus on the immediate problem

Last Answer : b. The distribution of tasks and crew coordination

What should a Captain do before making a non-urgent decision? a. Put his own view forward and then ask for the opinions of other members of the crew b. Consider all implications c. Encourage ideas from the crew before stating his own opinion d. Monitor his motor programme (flying)

Description : What should a Captain do before making a non-urgent decision? a. Put his own view forward and then ask for the opinions of other members of the crew b. Consider all implications c. Encourage ideas from the crew before stating his own opinion d. Monitor his motor programme (flying)

Last Answer : c. Encourage ideas from the crew before stating his own opinion

To ensure some degree of longitudinal stability in flight, the position of the CG: a. Must always coincide with the AC b. Must be forward of the Neutral Point c. Must be aft of the Neutral Point d. Must not be forward of the aft CG limi

Description : To ensure some degree of longitudinal stability in flight, the position of the CG: a. Must always coincide with the AC b. Must be forward of the Neutral Point c. Must be aft of the Neutral Point d. Must not be forward of the aft CG limi

Last Answer : b. Must be forward of the Neutral Point

When must a radiation indicator be carried? a. For flight above 29,000ft b. For flight above 39,000ft c. For flight above 49,000ft d. For flight above 59,000ft

Description : When must a radiation indicator be carried? a. For flight above 29,000ft b. For flight above 39,000ft c. For flight above 49,000ft d. For flight above 59,000ft

Last Answer : c. For flight above 49,000ft

After an accident, the operator of an aeroplane equipped with a flight recorder must keep the original recordings for a minimum period of: a. 30 days b. 90 days c. 45 days d. 60 days

Description : After an accident, the operator of an aeroplane equipped with a flight recorder must keep the original recordings for a minimum period of: a. 30 days b. 90 days c. 45 days d. 60 days

Last Answer : d. 60 days

If an ATC clearance is not suitable, the PIC may: a. Offer ATC an acceptable clearance b. Request and if practicable accept an amended clearance c. Demand an alternative clearance and ATC must comply d. Decline the clearance on the grounds that it is not in accordance with the field flight plan

Description : If an ATC clearance is not suitable, the PIC may: a. Offer ATC an acceptable clearance b. Request and if practicable accept an amended clearance c. Demand an alternative clearance and ATC must ... d. Decline the clearance on the grounds that it is not in accordance with the field flight plan

Last Answer : b. Request and if practicable accept an amended clearance

For a controlled flight before departure, a flight plan must be filed at least: a. 50 minutes before off-block time b. 60 minutes before departure c. 10 minutes before departure d. 30 minutes before off-block time

Description : For a controlled flight before departure, a flight plan must be filed at least: a. 50 minutes before off-block time b. 60 minutes before departure c. 10 minutes before departure d. 30 minutes before off-block time

Last Answer : b. 60 minutes before departure

If a CSD overheat warning is shown: a. The CSD can be disconnected and the pilot must control the alternator himself b. The pilot must throttle back to reduce the load on the alternator c. The CSD can be disconnected then reconnected later when the temperature has reduced d. The CSD can be disconnected but not used for the rest of the flight

Description : If a CSD overheat warning is shown: a. The CSD can be disconnected and the pilot must control the alternator himself b. The pilot must throttle back to reduce the load on the alternator c. The ... temperature has reduced d. The CSD can be disconnected but not used for the rest of the flight

Last Answer : d. The CSD can be disconnected but not used for the rest of the flight

Who checks, before flight, that the aircraft’s weight is such that the flight can be safely made and that any transported cargo is properly distributed and secured? a. The company’s cargo technicians b. The captain c. The mechanic on board, or in his absence the co-pilot d. The operator

Description : Who checks, before flight, that the aircraft’s weight is such that the flight can be safely made and that any transported cargo is properly distributed and secured? a. The company’s cargo technicians b. The captain c. The mechanic on board, or in his absence the co-pilot d. The operator

Last Answer : b. The captain

If so equipped, when should an aircraft display the anti-collision light? a. Only at night in flight, but not on the ground if being towed b. Whilst taxiing but not whilst being towed c. Only at night with engines running d. At all times on the ground when the engines are running

Description : If so equipped, when should an aircraft display the anti-collision light? a. Only at night in flight, but not on the ground if being towed b. Whilst taxiing but not whilst being towed c. Only at night with engines running d. At all times on the ground when the engines are running

Last Answer : d. At all times on the ground when the engines are running

Business ethics deals primarily with A. Social responsibility. B. the pricing of products and services. C. moral obligation. D. being unfair to the competition

Description : Business ethics deals primarily with A. Social responsibility. B. the pricing of products and services. C. moral obligation. D. being unfair to the competition

Last Answer : C. moral obligation.

Which statement is true regarding the opposing forces acting on an aeroplane in steady-state level flight? a. Thrust is greater than drag and weight and lift are equal b. These forces are equal c. Thrust is greater than drag and lift is greater than weight d. Thrust is slightly greater than lift, but the drag and weight are equal

Description : Which statement is true regarding the opposing forces acting on an aeroplane in steady-state level flight? a. Thrust is greater than drag and weight and lift are equal b. These forces are equal ... greater than weight d. Thrust is slightly greater than lift, but the drag and weight are equal

Last Answer : b. These forces are equal

Where do you find the best deals on international airline tickets?

Description : Where do you find the best deals on international airline tickets?

Last Answer : I’d ask my friend William Shatner AKA the Priceline negotiator

What flight condition should be expected when an aircraft leaves ground effect? a. A decrease in parasite drag permitting a lower angle of attack b. An increase induced drag and a requirement for a higher angle of attack c. An increase in dynamic stability d. A decrease in induced drag requiring a smaller angle of attack

Description : What flight condition should be expected when an aircraft leaves ground effect? a. A decrease in parasite drag permitting a lower angle of attack b. An increase induced drag and a requirement ... increase in dynamic stability d. A decrease in induced drag requiring a smaller angle of attack

Last Answer : b. An increase induced drag and a requirement for a higher angle of attack

An aircraft has a stalling speed in level flight of 70kt IAS. In a 60° balanced turn, the stalling speed would be: a. 76kt b. 84kt c. 99kt d. 140kt

Description : An aircraft has a stalling speed in level flight of 70kt IAS. In a 60° balanced turn, the stalling speed would be: a. 76kt b. 84kt c. 99kt d. 140kt

Last Answer : c. 99kt

The purpose of a trim tab is: a. To assist the pilot in initiating movement of the controls b. To zero the load on the pilot controls in the flight attitude required c. To provide feel to the controls at high speed d. To increase the effectiveness of the controls

Description : The purpose of a trim tab is: a. To assist the pilot in initiating movement of the controls b. To zero the load on the pilot controls in the flight attitude required c. To provide feel to the controls at high speed d. To increase the effectiveness of the controls

Last Answer : b. To zero the load on the pilot controls in the flight attitude required

From the flight deck you observe an aeroplane in the forward left position on an opposite parallel track. What Nav light will be used? a. Green b. Red c. White d. All of the above

Description : From the flight deck you observe an aeroplane in the forward left position on an opposite parallel track. What Nav light will be used? a. Green b. Red c. White d. All of the above

Last Answer : b. Red

At the alternate aerodrome, the commander of a turbojet engine aeroplane should have a fuel quantity (final reserve) sufficient for flying during: a. 30 minutes at holding flight speed at 1,500 ft b. 45 minutes at holding flight speed at 1,500 ft c. 30 minutes at cruising speed d. 45 minutes at cruising speed

Description : At the alternate aerodrome, the commander of a turbojet engine aeroplane should have a fuel quantity (final reserve) sufficient for flying during: a. 30 minutes at holding flight speed at 1,500 ft b. 45 ... speed at 1,500 ft c. 30 minutes at cruising speed d. 45 minutes at cruising speed

Last Answer : a. 30 minutes at holding flight speed at 1,500 ft

A Flight Data Recorder is required in aeroplanes over: a. 20,000kg b. 5,700kg c. 10,000kg d. 7,000kg

Description : A Flight Data Recorder is required in aeroplanes over: a. 20,000kg b. 5,700kg c. 10,000kg d. 7,000kg

Last Answer : b. 5,700kg

In the event of an act of unlawful interference, which of the following is the correct procedure to be taken by the pilot in command? a. Squawk 7700 if the situation requires and continue the flight as per the ATC clearance received if possible b. Squawk 7500 and broadcast a warning to ATC other traffic on 121.500MHz or the frequency in use whilst maintaining the flight as cleared c. Squawk 7500 (or 7700 if required) and broadcast a warning if the situation forces deviation from the cleared flight plan d. If forced to deviate from the flight plan, climb or descend to altitudes that differ from the normal cruising altitudes by 1000ft

Description : In the event of an act of unlawful interference, which of the following is the correct procedure to be taken by the pilot in command? a. Squawk 7700 if the situation requires and continue ... the flight plan, climb or descend to altitudes that differ from the normal cruising altitudes by 1000ft

Last Answer : c. Squawk 7500 (or 7700 if required) and broadcast a warning if the situation forces deviation from the cleared flight plan

When does a pilot apply the limitations of the MEL? a. At parking before commencement of taxi b. Prior to take-off c. At any time in flight d. Any time up to coming to a complete stop and applying the parking brake

Description : When does a pilot apply the limitations of the MEL? a. At parking before commencement of taxi b. Prior to take-off c. At any time in flight d. Any time up to coming to a complete stop and applying the parking brake

Last Answer : d. Any time up to coming to a complete stop and applying the parking brake

When do you not need a destination alternate aerodrome? a. If there is a reasonable certainty that at the ETA at the destination aerodrome and a reasonable time before and after you can expect VMC b. If the flight time is less than 6 hours c. If the flight time is less than 1 hour d. If your operator deems the weather to be suitable for a visual landing

Description : When do you not need a destination alternate aerodrome? a. If there is a reasonable certainty that at the ETA at the destination aerodrome and a reasonable time before and after you can expect VMC ... less than 1 hour d. If your operator deems the weather to be suitable for a visual landing

Last Answer : a. If there is a reasonable certainty that at the ETA at the destination aerodrome and a reasonable time before and after you can expect VMC

Which of the following would give the best indication of speed? a. A VOR on the flight plan route b. A VOR off the flight plan route c. A DME on the flight plan route d. A DME off the flight plan route

Description : Which of the following would give the best indication of speed? a. A VOR on the flight plan route b. A VOR off the flight plan route c. A DME on the flight plan route d. A DME off the flight plan route

Last Answer : c. A DME on the flight plan route

On receipt of a TCAS RA, your action is to: a. Initiate the required maneuver immediately b. Make a note of the details c. Request a flight clearance deviation from ATC d. Do nothing until a TA is received

Description : On receipt of a TCAS RA, your action is to: a. Initiate the required maneuver immediately b. Make a note of the details c. Request a flight clearance deviation from ATC d. Do nothing until a TA is received

Last Answer : a. Initiate the required maneuver immediately

From a pre-flight briefing you know a jet stream is at 31,000ft whilst you are at FL270. You experience moderate CAT. What would be the best course of action? a. Stay level b. Descend c. Climb d. Reduce speed

Description : From a pre-flight briefing you know a jet stream is at 31,000ft whilst you are at FL270. You experience moderate CAT. What would be the best course of action? a. Stay level b. Descend c. Climb d. Reduce speed

Last Answer : b. Descend

A flight is to depart from an airport with runway 09 and 27. Surface wind is 270/05; an inversion is reported at 300 feet with turbulence and wind shear. The wind just above the inversion is 090/30. What is the safest departure procedure? a. Take-off is not possible under these conditions b. Depart on runway 09 with a tailwind c. Depart runway 27 with maximum throttle during the passage through the inversion d. Depart runway 27 with as steep an ascent as possible

Description : A flight is to depart from an airport with runway 09 and 27. Surface wind is 270/05; an inversion is reported at 300 feet with turbulence and wind shear. The wind just above the ... throttle during the passage through the inversion d. Depart runway 27 with as steep an ascent as possible

Last Answer : b. Depart on runway 09 with a tailwind

The isobars drawn on a surface weather chart represent lines of equal pressure: a. At flight level b. At height of observatory c. At a determined density altitude d. Reduced to sea level

Description : The isobars drawn on a surface weather chart represent lines of equal pressure: a. At flight level b. At height of observatory c. At a determined density altitude d. Reduced to sea level

Last Answer : d. Reduced to sea level