Question 81-1 : The dry operating mass is the total mass of the aircraft ready for a specific type of operation but excluding ? [ Question security ]

Question 81-2 : The take off mass of an aeroplane is 66700 kg which includes a traffic load of 14200 kg and a usable fuel load of 10500 kgif the standard mass for the crew is 545 kg the dry operating mass is ?

42000 kg.

Dry operating mass = take off mass traffic load usable fuel dry operating mass = 66700 kg 14200 kg 10500 kg = 42000 kgdry operating mass = the total mass of an aircraft ready for a specific type of operation excluding all usable fuel and traffic loadthis mass includes items such as + crew and crew baggage+ catering and removable passenger service equipment food beverages potable water lavatory chemicals etc + special operational equipment eg stretchers rescue hoist cargo sling

Question 81-3 : The maximum certificated taxi or ramp mass is that mass to which an aircraft may be loaded prior to engine startit is ?

Question 81-4 : The maximum mass to which an aeroplane may be loaded prior to engine start is ?

Maximum certificated taxi ramp mass.

Please download the following document used as a reference at the exampdf031 mass definitionspdfthis is takeoff mass plus taxi fuel ie weight of loaded aircraft before starting the engines

Question 81-5 : The zero fuel mass and the dry operating mass ?

Differ by the value of the traffic load mass.

Please download the following document used as a reference at the exam pdf031 mass definitionspdf

Question 81-6 : 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 kg trip fuel 9730 kg contingency and final reserve fuel 1200 kg alternate ?

4530 kg.

Performance limited landing mass 55000 kgdry operating mass 34930 kgfuel at landing = 1200+1600 = 2800 kgtraffic load minus the cargo load = 130x84 + 130x14 = 12740 kgso the amount of cargo you can still carry is = 55000 34930+2800+12740 = 55000 50470 = 4530 kg

Question 81-7 : The empty mass of an aeroplane is given as 44800 kgoperational items including crew standard mass of 1060 kg are 2300 kgif the maximum zero fuel mass is given as 65500 kg the maximum traffic load which could be carried is ?

18400 kg.

Maximum traffic load = maximum zero fuel mass empty mass operational itemsmaximum traffic load = 65500 44800 2300 = 18400 kg

Question 81-8 : The maximum zero fuel mass is a structural limiting mass it is made up of the aeroplane dry operational mass plus ?

Traffic load.

Zero fuel mass the dry operating mass plus traffic load but excluding fuel

Question 81-9 : The take off mass of an aeroplane is 141000 kgtotal fuel on board is 63000 kg including 14000 kg reserve fuel and 1000 kg of unusable fuelthe traffic load is 12800 kgthe zero fuel mass is ?

79000 kg.

The zero fuel mass includes unusable fuelusable fuel on board = 63000 kg 1000 kg = 62000 kgtake off mass usable fuel = 141000 kg 62000 kg = 79000 kg

Question 81-10 : 'standard mass' as used in the computation of passenger load establish the mass of a child as ?

35 kg irrespective of age provided they occupy a seat.

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Question 81-11 : The maximum certificated take off mass is ?

A structural limit which may not be exceeded for any take off.

The certificated take off mass is a structural limit whereas all other answers refer to a performance climb respectively field limited take off mass the structural limit is a fixed value which shall never be exceeded to avoid any damage to the aircraft structure the other limitations can vary depending on the performance and environmentmaximum certified mass = structural limitationmaximum regulated mass = structural and performance limitation

Question 81-12 : For a particular aeroplane the structural maximum mass without any fuel on board other than unusable quantities is ?

A fixed value which is stated in the aeroplane operating manual.

Question 81-13 : On an aeroplane with a seating capacity of more than 30 it is decided to use standard mass values for computing the total mass of passengersif the flight is not a holiday charter the mass value which may be used for an adult is ?

84 kg.

Eu ops 153

Question 81-14 : The standard mass for a child is ?

35 kg for all flights.

Eu ops 153

Question 81-15 : On an aeroplane with 20 or more seats engaged on an inter continental flight the 'standard mass' which may be used for passenger baggage is ?

15 kg per passenger.

Eu ops 1620 mass values for passengers and baggage f mass values for baggage1 where the total number of passenger seats available on the aeroplane is 20 or more the standard mass values given in table 3 are applicable for each piece of checked baggagefor aeroplanes with 19 passenger seats or less the actual mass of checked baggage determined by weighing must be used 155

Question 81-16 : The following data applies to a planned flight dry operating mass 34900 kg performance limited take off mass 66300 kg performance limited landing mass 55200 kg maximum zero fuel mass 53070 kgfuel required at ramp taxy fuel 400 kg trip fuel 8600 kg contingency fuel 430 kg alternate fuel 970 kg ?

Question 81-17 : In determining the dry operating mass of an aeroplane it is common practice to use 'standard mass' values for crewthese values are ?

Flight crew 85 kg cabin crew 75 kg each these are inclusive of a hand baggage allowance.

Eu ops 1615 mass values for crew a an operator shall use the following mass values to determine the dry operating mass 1 actual masses including any crew baggage or2 standard masses including hand baggage of 85 kg for flight crew members and 75 kg for cabin crew members or3 other standard masses acceptable to the authorityb an operator must correct the dry operating mass to account for any additional baggage the position of this additional baggage must be accounted for when establishing the centre of gravity of the aeroplane

Question 81-18 : The medium range jet transport aeroplane is to operate a flight carrying the maximum possible fuel loaddeparture airfield performance limited take off mass 60 400 kglanding airfield not performance limiteddry operating mass 34930 kgfuel required for flight taxi fuel 715 kgtrip fuel 8600 ?

Question 81-19 : An aircraft is to depart from an airfield at a take off mass of 302550 kgfuel on board at take off including contingency and alternate of 19450 kg is 121450 kgthe dry operating mass is 161450 kgthe useful load will be ?

141100 kg.

Useful load = take off mass dry operating massuseful load = 302550 kg 161450 kg = 141100 kg

Question 81-20 : Conversion of fuel volume to mass ?

May be done by using standard fuel density values as specified in the operations manual if the actual fuel density is not known.

Question 81-21 : Standard masses may be used for the computation of mass values for baggage if the aircraft ?

Has 20 or more seats.

Eu ops 1620 mass values for passengers and baggage f mass values for baggage1 where the total number of passenger seats available on the aeroplane is 20 or more the standard mass values given in table 3 are applicable for each piece of checked baggage for aeroplanes with 19 passenger seats or less the actual mass of checked baggage determined by weighing must be used 155

Question 81-22 : A jet transport has the following structural limits maximum ramp mass 63 060 kg maximum take off mass 62 800 kg maximum landing mass 54 900 kg maximum zero fuel mass 51 300 kgthe aeroplane's fuel is loaded accordance with the following requirements taxi fuel 400 kg trip fuel 8400 kg contingency ?

16 370 kg.

Create a limitation table 156anything above 16370 kg will therefore exceed zfm but will keep the other three within limits so that is your answer

Question 81-23 : A flight has been made from london to valencia carrying minimum fuel and maximum traffic load on the return flight the fuel tanks in the aeroplane are to be filled to capacity with a total fuel load of 20100 litres at a fuel density of 079 kglthe following are the aeroplane's structural limits ?

14 331 kg.

Fuel at ramp 20100 litres x 079 kgl = 15879 kgfuel at take off 15879 kg 250 kg of taxi fuel = 15629 kgfuel at landing 15629 kg 5990 kg = 9639 kgmaximum traffic load = maximum landing mass dry operating mass remaining fuel at landing in london maximum traffic load = 58900 kg 34930 kg 9639 kg = 14331 kg

Question 81-24 : The term 'useful load' as applied to a aircraft includes ?

Traffic load plus useable fuel.

Question 81-25 : An aeroplane is performance limited to a landing mass of 54230 kgthe dry operating mass is 35000 kg and the zero fuel mass is 52080 kgif the take off mass is 64280 kg the useful load is ?

29280 kg.

Take off mass = dry operating mass + useful load64280 = 35000 + useful loaduseful load = 64280 35000useful load = 29280 kg

Question 81-26 : For the medium range transport aeroplane from the loading manual determine the maximum total volume of fuel which can be loaded into the main wing tanks fuel density value 078kgl 218 ?

11348 litres.

The question states 'determine the maximum total volume of fuel which can be loaded into the main wing tanks'if you use mass you will get 11646 litres 9084 kg 078 = 11646 litres and it will not fit in the tanks because main tanks volume in litres is 2998 us gallons 1499 + 1499 2998 usg x 37854 lusg = 11348 litres for a mass of 11348 litres x 078 = 8851 kg

Question 81-27 : The flight preparation of a turbojet aeroplane provides the following data take off runway limitation 185 000 kglanding runway limitation 180 000 kgplanned fuel consumption 11 500 kgfuel already loaded on board the aircraft 20 000 kgknowing that maximum take off mass mtom 212 000 kgmaximum landing ?

54 000 kg.

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Question 81-28 : The crew of a transport aeroplane prepares a flight using the following data block fuel 40 000 kg trip fuel 29 000 kg taxi fuel 800 kg maximum take off mass 170 000 kg maximum landing mass 148 500 kg maximum zero fuel mass 112 500 kg dry operating mass 80 400 kgthe maximum traffic load for this ?

32 100 kg.

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Question 81-29 : The dry operating mass of an aircraft is 2000 kgthe maximum take off mass landing and zero fuel mass are identical at 3500 kgthe block fuel mass is 550 kg and the taxi fuel mass is 50 kgthe available mass of traffic load is ?

1000 kg.

Traffic load is the total mass of passengers baggage and cargo including any non revenue loadit means usable fuel is not a part of the 'traffic load'traffic load = maximum take off mass dry operating mass + fuel on board at take off traffic load = 3500 2000 + 500 = 1000 kg

Question 81-30 : The basic empty mass of an aircraft is 30000 kg the masses of the following items are catering 300 kg safety and rescue material nil fly away kit nil crew inclusive crew baggage 365 kg fuel at take off 3000 kg unusable fuel 120 kg passengers baggage cargo 8000 kgthe dry operating mass is ?

30 665 kg.

The dry operating mass is = basic empty mass + standard itemsthe basic empty mass includes unuseable fueldry operating mass = 30000 + 300 + 365 = 30665 kgthe dom includes unusable fuel since unusable fuel is a part of basic empty massdry operating mass = the total mass of an aircraft ready for a specific type of operation excluding all usable fuel and traffic loadthis mass includes items such as + crew and crew baggage+ catering and removable passenger service equipment food beverages potable water lavatory chemicals etc + special operational equipment eg stretchers rescue hoist cargo sling

Question 81-31 : By adding to the basic empty mass the following fixed necessary equipment for a specific flight catering safety and rescue equipment fly away kit crew we get ?

Dry operating mass.

Please download the following document used as a reference at the exam pdf031 mass definitionspdf

Question 81-32 : An aircraft dry operating mass is 3000 kg the maximum take off landing and zero fuel mass are identical at 5200 kg ramp fuel is 650 kg the taxi fuel is 50 kg the maximum traffic load is ?

1600 kg.

Maximum traffic load = 5200 kg 600 kg at take off 3000 kg = 1600 kg

Question 81-33 : Given maximum structural take off mass 8350 kgmaximum structural landing mass 8350 kgzero fuel mass 6210 kgtaxi fuel 10 kgcontingency fuel 90 kgalternate fuel 300 kgfinal reserve fuel 400 kgtrip fuel 780 kgthe expected landing mass at destination will be ?

7000 kg.

Fuel on board at landing 90 + 300 + 400 = 790 kgexpected landing mass at destination = zero fuel mass + fuel on board at landingexpected landing mass at destination = 6210 + 790 = 7000 kg

Question 81-34 : Given zero fuel mass 6660 kgtrip fuel 990 kgblock fuel 1540 kgtaxi fuel 25 kgthe actual take off mass is equal to ?

8175 kg.

Actual take off mass = zero fuel mass + block fuel taxi fuelactual take off mass = 6660 + 1540 25 = 8175 kg

Question 81-35 : Given zero fuel mass 4920 kgtrip fuel 880 kgblock fuel 1330 kgtaxi fuel 25 kgthe actual take off mass is equal to ?

6225 kg.

Actual take off mass = zero fuel mass + block fuel taxi fuelactual take off mass = 4920 + 1330 25 = 6225 kg

Question 81-36 : Given maximum structural take off mass 8600 kgmaximum structural landing mass 8600 kgzero fuel mass 6500 kgtaxi fuel 15 kgcontingency fuel 110 kgalternate fuel 600 kgfinal reserve fuel 130 kgtrip fuel 970 kgthe expected landing mass at destination will be ?

7340 kg.

Fuel on board at landing 110 + 600 + 130 = 840 kgexpected landing mass at destination = zero fuel mass + fuel on board at landingexpected landing mass at destination = 6500 + 840 = 7340 kg

Question 81-37 : Given maximum structural take off mass 7400 kgmaximum structural landing mass 7400 kgzero fuel mass 5990 kgtaxi fuel 15 kgcontingency fuel 110 kgalternate fuel 275 kgfinal reserve fuel 250 kgtrip fuel 760 kgthe expected landing mass at destination will be ?

6625 kg.

Fuel on board at landing 110 + 275 + 250 = 635 kgexpected landing mass at destination = zero fuel mass + fuel on board at landingexpected landing mass at destination = 5990 + 635 = 6625 kg

Question 81-38 : Given dry operating mass 4920 kgzero fuel mass 5740 kgtrip fuel 670 kgtake off fuel 1050 kgthe traffic load is ?

820 kg.

Dry operating mass is the total mass of an aircraft ready for a specific type of operation excluding all usable fuel and traffic loadtraffic load is the total mass of passengers baggage and cargo including any non revenue load5740 4920 = 820 kg

Question 81-39 : Given dry operating mass 5320 kgzero fuel mass 6790 kgtrip fuel 770 kgtake off fuel 1310 kgthe traffic load is ?

1470 kg.

Dry operating mass is the total mass of an aircraft ready for a specific type of operation excluding all usable fuel and traffic loadtraffic load is the total mass of passengers baggage and cargo including any non revenue load6790 5320 = 1470 kg

Question 81-40 : Given dry operating mass 5210 kgzero fuel mass 6230 kgtrip fuel 990 kgtake off fuel 1590 kgthe traffic load is ?

1020 kg.

Dry operating mass is the total mass of an aircraft ready for a specific type of operation excluding all usable fuel and traffic loadtraffic load is the total mass of passengers baggage and cargo including any non revenue load6230 5210 = 1020 kg