MASS-BALANCE-BNC-THEORY-JMB2

1. The maximum certificated take - off mass is:




2. The centre of gravity of an aeroplane is at 25% of the Mean Aerodynamic Chord. This means that the centre of gravity of the aeroplane is situated at 25% of the length of:




3. In determining the Dry Operating Mass of an aeroplane it is common practice to use 'standard mass' values for crew. These values are




4. "During a violent avoidance manoeuvre, a light twin aircraft, certified to FAR 23 requirements was subjected to an instantaneous load factor of 4.2. The Flight Manual specifies that the aircraft is certified in the normal category for a load factor of -1.9 to +3.8. Considering the certification requirements and taking into account that the manufacturer of the twin did not include, during its conception, a supplementary margin in the flight envelope, it might be possible to observe;"




5. The term 'useful load' as applied to an aircraft includes




6. "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"




7. The Zero Fuel Mass and the Dry Operating Mass




8. At maximum certificated take-off mass an aeroplane departs from an airfield which is not limiting for either take-off or landing masses. During initial climb the number 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




9. The Dry Operating Mass is the total mass of the aircraft ready for a specific type of operation but excluding




10. "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:"




11. Longitudinal CG location can be expressed:




12. "When the centre of gravity is at the forward limit, an aeroplane will be:"




13. The datum used for balance calculations is:




14. The Maximum Zero Fuel Mass is the mass of the aeroplane with no usable fuel on board. It is a limitation which is:




15. Dry Operating Mass is the mass of the aircraft less




16. The longitudinal centre of gravity datum:




17. 'Standard Mass' as used in the computation of passenger load establish the mass of a child as




18. The responsibility for determination of the mass of 'operating items' and 'crew members' included within the Dry Operating Mass lies with




19. The Dry Operating Mass of a helicopter is the total mass of a helicopter:




20. Conversion of fuel volume to mass




21. "An aeroplane must be re-weighed at certain intervals. Where an operator uses 'fleet masses' and provided that changes have been correctly documented, this interval is"




22. If the centre of gravity is near the forward limit the aeroplane will:




23. "To calculate a allowable take-off mass, the factors to be taken into account include:"




24. The distance from the datum to the Centre of Gravity of a mass is known as




25. "In cruise, an extreme aft longitudinal centre of gravity: "




26. "During take-off you notice that, for a given elevator input, the aeroplane rotates much more rapidly than expected. This is an indication that :"




27. "To measure the mass and CG-position of an aircraft, it should be weighed with a minimum of:"




28. An aircraft may be weighed




29. "For a particular aeroplane, the structural maximum mass without any fuel on board, other than unusable quantities, is:"




30. The maximum taxi (ramp) mass is governed by:




31. "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."




32. The longitudinal centre of gravity datum:




33. "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 passengers. If the flight is not a holiday charter, the mass value which may be used for an adult is"




34. The standard mass for a child is




35. "If an aeroplane is at a higher mass than anticipated, for a given airspeed the angle of attack will"




36. "The maximum mass to which an aeroplane may be loaded, prior to engine start, is:"




37. An aeroplane is said to be 'neutrally stable'. This is likely to:




38. "The Basic Empty Mass of a helicopter is the mass of the helicopter without crew,:"




39. A flight benefits from a strong tail wind which was not forecast. On arrival at destination a straight in approach and immediate landing clearance is given. The landing mass will be higher than planned and




40. The Maximum Zero Fuel Mass is a structural limiting mass. It is made up of the aeroplane Dry Operational mass plus




41. "The total mass of the aeroplane including crew, crew baggage; plus catering and removable passenger equipment; plus potable water and lavatory chemicals but excluding usable fuel and traffic load, is referred to as:"




42. "When considering the effects of increased mass on an aeroplane, which of the following is true?"




43. "In cruise flight, a centre of gravity moving aft will:"




44. The maximum certificated taxi (or ramp) mass is that mass to which an aeroplane may be loaded prior to engine start. It is:




45. Standard masses may be used for the computation of mass values for baggage if the aeroplane




46. Which of the following is unlikely to have any effect on the position of the centre of gravity on an aeroplane in flight ?




47. "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 ?"




48. Mass for individual passengers (to be carried on an aircraft) may be determined from a verbal statement by or on behalf of the passengers if the number of




49. An aeroplane is loaded with its centre of gravity towards the rear limit. This will result in:




50. Which of the following is most likely to affect the range of centre of gravity positions on an aeroplane?




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