Mass and Balance - ATPL - Airline Transport Pilot license

Test 10 domande ATPL - Airline Transport Pilot license - Mass and Balance, tempo libero

1 - Longitudinal CG location can be expressed: As a percentage of the MAC from its trailing edge. As a percentage of the MAC from its leading edge. With respect to the centre of pressure. With respect to the neutral point.

2 - An aeroplane is performance limited to a landing mass of 54230 kg. The Dry Operating Mass is 35000 kg and the zero fuel mass is 52080 kg. If the take-off mass is 64280 kg the useful load is 29280 kg. 10080 kg. 12200 kg. 17080 kg

3 - The Zero Fuel Mass and the Dry Operating Mass Differ by the sum of the mass of usable fuel plus traffic load mass. Are the same value. Differ by the mass of usable fuel. Differ by the value of the traffic load mass.

4 - . The reference about which centre of gravity moments are taken is the Datum. Chord line Centre of mass Centre of pressure

5 - In order to provide an adequate 'buffet boundary' at the commencement of the cruise a speed of 1.3 Vs is used.At a mass of 120000 kg this is a CAS of 180 KT.If the mass of the aeroplane is increased to 135000 kg the value of 1.3 Vs will be: Increased to 191 KT, drag will increase and air distance per kg of fuel will decrease. Increased to 202 KT but, since the same angle of attack is used, drag and range will remain the same. Increased to 191 KT, drag will decrease and air distance per kg of fuel will increase. Unaffected as Vs always occurs at the same angle of attack.

6 - Given are the following information at take-off____________________________________________________________ STATION....................MASS (kg)....ARM (cm)....MOMENT (kgcm)____________________________________________________________ Basic Empty Condition...12045.........+30......+361350Crew..................................145........-160.......-23200Freight ( 1)..........................570.......+200......+114000Freight ( 2)..........................410..........-40.......-16400Fuel.................................6045...........-8.......-48360Given that the flight time is 2 h and the estimated fuel flow will be 1050 litres per h. The specific density of fuel is 0.79. The 'Freight ( 2)' will be dropped during flight within the scope of a rescue action.Calculate the CG position at landing. 25 cm aft of datum 24.3 cm aft of datum 23.7 cm aft of datum 22 cm aft of datum

7 - Which of the following corresponds to zero fuel mass? Operating mass plus luggage of passengers and cargo. Operating mass plus passengers and cargo. The take-off mass of an aeroplane minus all usable fuel. Take-off mass minus fuel to destination and alternate.

8 - . Overloading has the following effects on performance: Reduced take off and landing distance, increased VNE and increased fuel consumption Increased take off and landing distance, increased rate of climb and increased fuel consumption Reduced take off and landing distance, increased VNE and reduced rate of climb Increased take off and landing distance, reduced rate of climb and increased fuel consumption

9 - An aeroplane is loaded with its centre of gravity towards the rear limit. This will result in: A reduction in power required for a given speed An increased risk of stalling due to a decrease in tailplane moment An increase in longitudinal stability A reduced fuel consumption as a result of reduced drag

10 - The floor of the main cargo hold is limited to 4000 N/m2.It is planned to load a cubic container each side of which measures 0.5 m. Its maximum gross mass must not exceed:(assume g=10m/s 2) 1000 kg 100 kg 5000 kg 500 kg

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