Mass and Balance Exam 3, 30 questions, 60 minutes 1. The maximum floor loading for a cargo compartment in an aircraft is given as 750 kg per square metre. A package with a mass of 600 kg is to be loaded. Assuming the pallet base is entirely in contact with the floor, which of the following is the minimum size pallet that can be used. (a) 30 cm by 200 cm (b) 40 cm by 300 cm (c) 40 cm by 200 cm (d) 30 cm by 300 cm 2. The maximum floor loading for an aeroplane is given in the flight manual as 650 kg per square metre. What is the maximum mass of a package which can be safely supported on a pallet with dimensions of 80 cm by 80 cm? (a) 52.0 kg (b) 41.6 kg (c) 416.0 kg (d) 520 kg 3. For this question refer to the loading manual MRJT fig 4.9. From the manual for the transport aeroplane, the maximum floor loading intensity for the aft cargo compartment is. (a) 68 lb per square foot (b) 150 kg per square foot (c) 68 kg per square foot (d) 68 kg per square metre 4. An aeroplane, which is scheduled to fly an oceanic sector, is due to depart from a high altitude airport in the tropics at 1400 local time. The airport has an exceptionally long runway. Which of the following is most likely to be the limiting factor(s) in determining the take off mass. (a) altitude and temperature of the departure airport (b) en-route obstacle clearance requirements (c) maximum zero fuel mass (d) maximum certified take off mass Bristol Groundschool Mass & Balance Exam 3
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Mass and Balance Exam 3, 30 questions, 60 minutes 1. The maximum floor loading for a cargo compartment in an aircraft is
given as 750 kg per square metre. A package with a mass of 600 kg is to be loaded. Assuming the pallet base is entirely in contact with the floor, which of the following is the minimum size pallet that can be used.
(a) 30 cm by 200 cm (b) 40 cm by 300 cm (c) 40 cm by 200 cm (d) 30 cm by 300 cm
2. The maximum floor loading for an aeroplane is given in the flight
manual as 650 kg per square metre. What is the maximum mass of a package which can be safely supported on a pallet with dimensions of 80 cm by 80 cm?
(a) 52.0 kg (b) 41.6 kg (c) 416.0 kg (d) 520 kg
3. For this question refer to the loading manual MRJT fig 4.9. From the
manual for the transport aeroplane, the maximum floor loading intensity for the aft cargo compartment is.
(a) 68 lb per square foot (b) 150 kg per square foot (c) 68 kg per square foot (d) 68 kg per square metre
4. An aeroplane, which is scheduled to fly an oceanic sector, is due to
depart from a high altitude airport in the tropics at 1400 local time. The airport has an exceptionally long runway. Which of the following is most likely to be the limiting factor(s) in determining the take off mass.
(a) altitude and temperature of the departure airport (b) en-route obstacle clearance requirements (c) maximum zero fuel mass (d) maximum certified take off mass
Bristol Groundschool Mass & Balance Exam 3
5. Regarding the following terms (i) Dry Operating Mass (DOM) (ii) Operating Mass (OM)
Which statement is correct?
(a) the DOM includes take off fuel (b) the DOM includes fixed equipment needed to carry out a specific
flight (c) the OM includes the traffic load (d) the OM is the mass of the aeroplane without take off fuel
6. The total mass of the aeroplane including crew and crew baggage,
catering and removable passenger equipment, potable water and lavatory chemicals, but excluding usable fuel and traffic load is referred to as.
(a) Dry Operating Mass (b) Zero Fuel Mass (c) Basic Empty Mass (d) Maximum Zero Fuel Mass
7. The operator of an aircraft equipped with 50 seats uses standard
masses for passengers and baggage. During the preparation of a scheduled flight a group of passengers present themselves at the check in desk. It is apparent that even the lightest of these exceeds the value of the declared standard mass.
(a) the operator may use the standard masses for the balance, but
must correct these for the load calculation (b) the operator may use the standard masses for the load and
balance calculation without correction (c) the operator should use the individual masses of the passengers or
alter the standard masses (d) the operator is obliged to use the actual mass of each passenger.
8. The maximum quantity of the fuel that can be loaded into an aircraft’s
tanks is 3800 US gallons. If the fuel SG is 0.79, the maximum fuel mass which may be loaded is:
(a) 18206 kg (b) 11364 kg (c) 13647 kg (d) 14383 kg
9. Standard masses may be used for the computation of the mass values
for baggage if the aeroplane.
(a) has 30 or more seats (b) has 20 or more seats (c) has 6 or more seats (d) is carrying 30 or more passengers
Mass & Balance Exam 3 Bristol Groundschool
10. The empty mass of an aeroplane is 61300 kg. The mass of the
operational items (including crew) is given as 2300 kg. If the take off mass is 132000 kg and useable fuel 43800 kg, the useful load is.
(a) 68400 kg (b) 70700 kg (c) 26900 kg (d) 29600 kg
11. Traffic load is the difference between the
(a) take off mass and operating mass (b) take off mass and basic mass plus trip fuel (c) operating mass and basic mass (d) take off mass and basic mass
12. An aeroplane must be reweighed at certain intervals. Where an operator
uses fleet masses and provides that changes have been correctly documented, this interval is.
(a) whenever a major modification is carried out (b) whenever the C of A is renewed (c) 9 years for each aeroplane (d) 4 years for each aeroplane
13. The responsibility for determination of the mass of “operating items”
and “crew members” included within the Dry Operating Mass lies with.
(a) the person compiling the weighing schedule (b) the commander (c) the authority of the state of registration (d) the operator
14. Given: Empty Mass 44800 kg
MZFM 65500 kg Operational items (including crew standard mass 1060 kg) are 2300 kg. The maximum traffic load is:
(a) 19460 kg (b) 23000 kg (c) 18400 kg (d) 20700 kg
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15. Given: DOM 38000 kg Max Structural TOM 72000 kg MLM 65000 kg MZFM 61000 kg Trip fuel 8000 kg Take off fuel 10300 kg
Find what (i) the maximum allowed take off mass and (ii) payload are respectively.
(a) (i) 73000 kg (ii) 24700 kg (b) (i) 71300 kg (ii) 25300 kg (c) (i) 71300 kg (ii) 23000 kg (d) (i) 73000 kg (ii) 27000 kg
16. Prior to departure an aeroplane is loaded with 16500 litres of fuel at a
fuel density of 780 kg/m3. This is entered into the load sheet at 16500 kg and calculations are carried out accordingly. As a result of this error, the aeroplane is:
(a) heavier than anticipated and the calculated safety speeds will be
too low (b) heavier than anticipated and the minimum V1 speed will be too low (c) lighter than anticipated and the calculated V2 speed will be too low (d) lighter than anticipated and the calculated minimum V1 speed will
be too high. 17. A flight benefits from an unforecast tail wind and arrives considerably
earlier than planned. If the fuel consumption during the flight remains as planned and, on arrival, a straight in approach and clearance for immediate landing is given, the landing mass will probably be higher than planned.
(a) and the approach path will be steeper (b) and the approach path will be steeper and threshold speed higher (c) and a longer landing distance required (d) but the landing distance will be unaffected
18. If an aeroplane is at a higher mass than anticipated, for a given airspeed
the angle of attack will:
(a) be decreased, drag will decrease and endurance will increase (b) remain constant, drag will increase and endurance will increase (c) be greater, drag will increase and endurance will reduce (d) remain constant, drag will reduce and endurance will reduce
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19. At maximum certified TOM an aeroplane departs from an airfield which is not limiting for either take off or landing masses. During initial climb, one engine suffers a contained disintegration. An emergency is declared and the aeroplane returns to departure airfield for an immediate landing. The most likely result of this action will be.
(a) a high threshold speed and a shorter stop distance (b) a short landing as a result of the increased angle of approach
necessary at very high aeroplane mass (c) a high threshold speed and possible undercarriage or other
structural failure (d) a landing further along the runway than normal
20. Refer to MRJT1 fig 4.9. For the transport aeroplane the moment
(balance) arm (BA) for the forward hold centroid is.
21. Refer to MRJT1 fig 4.9. The maximum permissible mass in the forward
compartment of the rear hold and the rear compartment of the forward hold is:
(a) 1564lb and 1676lb respectively (b) 762kg and 711kg respectively (c) 6736lb and 4530lb respectively (d) 2059kg and 3062kg respectively
22. Given: Distance from datum to CG 12.53 m Distance from datum to LE 9.63 m Length of MAC 8.00 m Calculate the CG as a % MAC.
(a) 47.0% MAC (b) 63.4% MAC (c) 23.1% MAC (d) 36.3% MAC
23. Given: CG is located 1700cm aft of the datum Aeroplane mass 36000 kg
What is the effect on the CG if you move 20 passengers (total mass 1600kg) from1600cm aft of the datum to 2300cm aft?
(a) it moves fwd by 0.157 m (b) it moves aft by 0.157 m (c) it moves fwd by 3.22 m (d) it moves aft by 0.31 m
Bristol Groundschool Mass & Balance Exam 3
24. The Centre of Gravity of an aircraft moves forward in flight as fuel is consumed. This results in:
(a) increased stability which means lower control forces in pitch (b) increased stability which means higher control forces in pitch (c) reduced stability which means higher control forces in pitch (d) reduced stability which means lower control forces in pitch
26. In an aircraft with no centre tank the MZFM is related to
(a) the MTOM (b) the bending moment in the wing root (c) the trip fuel loaded (d) strain on the landing gear
27. Use Annex 1 to determine the Dry Operating Index for a DOM of
35,000kg and a %MAC of 14%.
(a) 35 (b) 40 (c) 45 (d) 50
28. If an aircraft is neutrally stable this would suggest that
(a) the Centre of Gravity is at the forward edge of the permitted range (b) the Centre of Gravity is in the centre of the permitted range (c) the Centre of Gravity is near the aft limit of the permitted range (d) the Centre of Gravity is beyond the aft limit of the permitted range
29. What would not affect the Centre of Gravity position?
(a) Cabin crewmembers performing their normal duties (b) Fuel usage (c) Stabilator trim setting (d) Gear extension
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30. Which document should you refer to obtain specific gravity data to permit conversion of fuel quantity to fuel mass in the event that the actual density is not provided?
