DGCA Air Navigation: Flight Planning Questions
187 exam-style Flight Planning questions for the DGCA Air Navigationpaper (CPL & ATPL). The first 12 are free below with answers and explanations — sign up free to practise all of them with progress tracking.
- Q1
The empty mass of an aeroplane is recorded in
- A the weighing schedule and is amended to take account of changes due to modifications of the aeroplane.
- B the weighing schedule. If changes occur, due to modifications, the aeroplane must be re weighed always.
- C the loading manifest. It differs from Dry Operating Mass by the value of the 'useful load'.
- D the loading manifest. It differs from the zero fuel mass by the value of the 'traffic load'.
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Correct answer: A. the weighing schedule and is amended to take account of changes due to modifications of the aeroplane.
The empty mass is entered in the weighing schedule and is then amended by calculation to account for mass changes caused by later modifications, keeping the schedule current without re-weighing for every change.
- Q2
When establishing the mass breakdown of an aeroplane, the empty mass is defined as the sum of the:
- Astandard empty mass plus specific equipment mass plus trapped fluids plus unusable fuel mass
- Bempty mass dry plus variable equipment mass
- C basic mass plus variable equipment mass
- D basic mass plus special equipment mass
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Correct answer: A. standard empty mass plus specific equipment mass plus trapped fluids plus unusable fuel mass
The empty mass is the standard empty mass plus the specific or optional equipment fitted, together with the trapped (undrainable) fluids and the unusable fuel that remain permanently in the aircraft.
- Q3
The actual 'Zero Fuel Mass' is equal to the:
- A Dry Operating Mass plus the traffic load.
- B Operating Mass plus all the traffic load.
- C Basic Empty Mass plus the fuel loaded.
- DActual Landing Mass plus trip fuel.
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Correct answer: A. Dry Operating Mass plus the traffic load.
Zero Fuel Mass is the Dry Operating Mass with the traffic load of passengers, baggage and cargo added but no usable fuel, so it equals Dry Operating Mass plus traffic load.
- Q4
The actual 'Take-off Mass' is equivalent to:
- A Dry Operating Mass plus take-off fuel and the traffic load
- B Actual Zero Fuel Mass plus the traffic load
- CDry Operating Mass plus the take-off fuel
- D Actual Landing Mass plus the take-off fuel
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Correct answer: A. Dry Operating Mass plus take-off fuel and the traffic load
Take-off Mass is the Dry Operating Mass plus the take-off fuel plus the traffic load, representing everything on board as the aircraft begins its take-off run.
- Q5
(For this question use annex 031-9640 A or Loading Manual MRJT 1 Figure 4.14)A revenue flight is planned for the transport aeroplane. Take-off mass is not airfield limited. The following data applies:Dry Operating Mass 34930 kgPerformance limited landing mass 55000 kgFuel on board at ramp-Taxi fuel 350 kgTrip fuel 9730 kgContingency and final reserve fuel 1200 kgAlternate fuel 1600 kgPassengers on board 130Standard mass for each passenger 84 kgBaggage per passenger 14 kgTraffic load Maximum possibleUse the loading manual provided and the above data. Determine the maximum cargo load that may be carried without exceeding the limiting aeroplane landing mass.
- A4530 kg.
- B 5400 kg
- C6350 kg.
- D3185 kg.
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Correct answer: A. 4530 kg.
With take-off not airfield limited, the allowable mass is set by the most restrictive of the landing limit plus trip fuel and the zero-fuel limit; after deducting the dry operating mass and fuel from the binding figure the permissible traffic load works out to about 4530 kg.
- Q6
Given are:- Maximum structural take-off mass: 72 000 kg- Maximum structural landing mass: 56 000 kg- Maximum zero fuel mass: 48 000 kg- Taxi fuel: 800 kg Trip fuel: 18 000 kg- Contingency fuel: 900 kg- Alternate fuel: 700 kg- Final reserve fuel: 2 000 kgDetermine the actual take-off mass:
- A69 600 kg
- B74 000 kg
- C 72 000 kg
- D70 400 kg
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Correct answer: A. 69 600 kg
Take-off fuel is trip plus contingency, alternate and final reserve, totalling 21600 kg. The take-off mass cannot exceed the structural take-off limit of 72000, the landing limit plus trip fuel of 74000, or the zero-fuel limit plus take-off fuel of 69600; the lowest of these, 69600 kg, is the actual take-off mass.
- Q7
An aircraft is planned to fly from position 'A' to position 'B',distance 480 NM at an average GS of 240 kt. It departs 'A' at 1000 UTC.After flying 150 NM along track from 'A', the aircraft is 2 MIN behind planned time.Using the actual GS experienced, what is the revised ETA at 'B'?
- A1206
- B 1203
- C 1153
- D 1157
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Correct answer: A. 1206
The first 150 NM took 39.5 minutes, an actual groundspeed of about 228 kt; the remaining 330 NM then needs about 87 minutes, giving a revised ETA of 1206.
- Q8
The Basic Mass of a helicopter is the mass of the helicopter without crew, :
- Awithout specific equipment for the mission, without payload, with the unusable fuel and standard equipment.
- B without payload, with specific equipment for the mission, without the unusable fuel.
- C without specific equipment for the mission, without payload, wthout unusable fuel.
- D without specific equipments for the mission, without payload, with fuel on board.
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Correct answer: A. without specific equipment for the mission, without payload, with the unusable fuel and standard equipment.
The basic mass of a helicopter is the empty machine without crew, without mission-specific equipment and without payload, but including the unusable fuel and the standard permanently carried fluids.
- Q9
The maximum zero-fuel mass:1- is a regulatory limitation2- is calculated for a maximum load factor of +3.5 g3- is due to the maximum permissible bending moment at the wing root4- imposes fuel dumping from the outer wings tank first5- imposes fuel dumping from the inner wings tank first6- can be increased by stiffening the wingThe combination of correct statements is:
- A1, 3, 5
- B 2, 5, 6
- C 4, 2, 6
- D 1, 2, 3
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Correct answer: A. 1, 3, 5
The maximum zero-fuel mass is a regulatory structural limitation set by the maximum permissible bending moment at the wing root, since fuel carried in the wings relieves that bending; this governs how fuel may be managed to preserve wing bending relief.
- Q10
Traffic load is the:
- A Zero Fuel Mass minus Dry Operating Mass.
- BDry Operating Mass minus the disposable load.
- CDry Operating Mass minus the variable load.
- DTake-off Mass minus Zero Fuel Mass.
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Correct answer: A. Zero Fuel Mass minus Dry Operating Mass.
Traffic load is the revenue and non-revenue payload, equal to the Zero Fuel Mass minus the Dry Operating Mass.
- Q11
The empty mass of an aeroplane is given as 44800 kg. Operational items (including crew standard mass of 1060 kg) are 2300 kg. If the maximum zero fuel mass is given as 65500 kg, the maximum traffic load which could be carried is:
- A18400 kg
- B20700 kg
- C 23000 kg
- D19460 kg.
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Correct answer: A. 18400 kg
The Dry Operating Mass is the empty mass plus operational items, 44800 plus 2300, giving 47100 kg. The maximum traffic load is the maximum zero-fuel mass minus this, 65500 minus 47100, which is 18400 kg.
- Q12
(For this question use annex 031-4741A or Loading Manual MEP1 Figure 3.4)With respect to a multi-engine piston powered aeroplane, determine the total moment (lbs.In) at landing in the following conditions:Basic empty mass: 3 210 lbs.One pilot: 160 lbs.Front seat passenger : 200 lbs.Centre seat passengers: 290 lbs. (total)One passenger rear seat: 110 lbs.Baggage in zone 1: 100 lbs.Baggage in zone 4: 50 lbs.Block fuel: 100 US Gal.Trip fuel: 55 US Gal.Fuel for start up and taxi (included in block fuel): 3 US Gal.Fuel density: 6 lbs./US Gal.Total moment at take off: 432226 lbs.In
- A401 338
- B432 221
- C 433 906
- D 377 746
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Correct answer: A. 401 338
Summing each item's mass multiplied by its balance arm in the landing configuration gives a total moment of 401338 lb.in.
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