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Question 87-1 : The cg limits of an aircraft are from 83 inches to 93 inches aft of the datum .the cg as loaded is found to be at 81 inches aft of the datum the loaded mass is 3240 lbs .how much mass must be moved from the forward hold 25 inches aft of the datum to the aft hold 142 inches aft of the datum to bring ? [ Study Manual ]

55 38 lbs

Mass moved / total mass = change of cg / distance moved.mass moved = change of cg x total mass / distance moved.mass moved = 2 x 3240 / 142 25 .mass moved = 55 38 lbs exemple 187 55.38 lbs.

Question 87-2 : An aircraft has three holds situated 10 inches 100 inches and 250 inches aft of the datum identified as holds a b and c respectively .the total aircraft mass is 3500 kg and the cg is 70 inches aft of the datum .the cg limits are from 40 inches to 70 inches aft of the datum .how much load must be ?

500 kg

Mass change / total mass = change of cg / total distance moved.mass change = change of cg x total mass / total distance moved.mass change = 70 40 x 3500 / 250 40 .mass change = 30 x 3500 / 210.mass change = 500 kg exemple 191 500 kg.

Question 87-3 : A 5 kg mass is located at the end of a plank at 4m of the pivot on the other end of 8m long what mass must be put for the plank to be in balance ?

2 5 kg

Moment = mass x balance arm.5 kg x 4 m = 20 kgm. kg x 8 m = 20 kgm.20 / 8 = 2 5 kg exemple 195 2.5 kg.

Question 87-4 : A 5m rope is attached around a pivot a man a user pulls a force of 400 newton on the longest side of the rope located at 3 m of the pivot what load must be pull in the opposite direction to balance the forces ?

400 n

400 n in one direction 400 n in the other exemple 199 400 n.

Question 87-5 : A 3 m long plank is on a pivot located at 1m of the left side a user applies a 400 n force on the end of the left side to be in balance what force must be apply on the opposite side ?

200 n

1m x 400 n = 2m x n.400 / 2 = 200 n exemple 203 200 n.

Question 87-6 : Which pallet can be loaded in a hold whose maximum linear floor loading is 630 kg/ml ?

1 2 x 1 2m mass 700 kg

We have to convert each container to a 1m running load .700 / 1 1 = 636kg/ml.760 / 1 1 = 690kg/ml.700 / 1 2 = 583kg/ml less than 630 kg/ml .760 / 1 2 = 633kg/ml exemple 207 1.2 x 1.2m, mass 700 kg.

Question 87-7 : Which of the following statements about loading is correct ?

Containers can be connected directly to the aircraft and each container has its own manifest

Baggage and cargo can be loaded into standard size containers designed to fit and lock into the cargo compartment the containers have an individual maximum mass limit and an individual floor loading limit mass per unit aera each container has its own manifest exemple 211 Containers can be connected directly to the aircraft and each container has its own manifest.

Question 87-8 : Rush bags last minute baggage and cabin crew baggage is held in/on ?

Bulk cargo

exemple 215 Bulk cargo.

Question 87-9 : The maximum floor loading for a cargo compartment is given as 70 kg/m² .a package with a mass of 0 126 ton 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 ?

1 8 m²

126 kg / 70 kg/m² = 1 8 m² exemple 219 1.8 m².

Question 87-10 : Crew baggage is considered to be ?

Variable load

Crew baggage is a variable load and is usually put in the cargo compartment as bulk load exemple 223 Variable load.

Question 87-11 : Which of the following can be considered as bulk cargo ?

Baggage from late arrival passengers and crew hand baggage

exemple 227 Baggage from late arrival passengers and crew hand baggage.

Question 87-12 : A jet aeroplane is climbing at constant mach number below the tropopause .which of the following statements is correct ?

Ias decreases and tas decreases

Use the very simple 'ertm' diagram . 1039.the mach line is vertical because the question states climbing at constant mach number . ertm for e as/ r as rectified air speed or cas / t as/ m ach .mach number = tas / lss.local speed of sound lss changes in proportion to temperature .when climbing below the tropopause the temperature decreases lss decreases .thus tas must decrease to keep mach number constant .tas is ias corrected for instrument position compressibility and density errors if tas decreases ias decreases exemple 231 Ias decreases and tas decreases.

Question 87-13 : Which of the following statements is correct ?

A stopway means an area beyond the take off runway able to support the aeroplane during an aborted take off

exemple 235 A stopway means an area beyond the take-off runway, able to support the aeroplane during an aborted take-off.

Question 87-14 : Which of the following is true with regard to vmca air minimum control speed ?

Straight flight can not be maintained below vmca when the critical engine has failed

exemple 239 Straight flight can not be maintained below vmca, when the critical engine has failed.

Question 87-15 : Which of the following will decrease v1 ?

Inoperative anti skid

Antiskid system the hydraulic system provides antiskid protection when the system detects a skid the associated antiskid valve reduces brake pressure until skidding stops .an inoperative anti skid system will increase the stop distance thus our asda is increased and v1 need to be decreased .an increased take off mass or an increased of oat will increase v1 until we reach one of the maximum available distances tora toda and asda .an inoperative fms has no effect on v1

Question 87-16 : Which of the following are to be taken into account for the runway in use for take off ?

Airport elevation runway slope outside air temperature pressure altitude and wind components

exemple 247 Airport elevation, runway slope, outside air temperature, pressure altitude and wind components.

Question 87-17 : Changing the take off flap setting from flap 15° to flap 5° will normally result in ?

A longer take off distance and a better climb

exemple 251 A longer take-off distance and a better climb.

Question 87-18 : In accordance with cs 25 the reference landing speed vref has the following minimum margin above the reference stalling speed in the landing configuration vsr0 ?

23%

Admin .vref is the landing reference speed . cs 25 125 landing . . i in non icing conditions vref may not be less than . a 1 23 vsr0.example 100 x 1 23 = 123 kt exemple 255 23%.

Question 87-19 : In relation to the net take off flight path the required 35 ft vertical distance to clear all obstacles is ?

The minimum vertical distance between the lowest part of the aeroplane and all obstacles within the obstacle domain

exemple 259 The minimum vertical distance between the lowest part of the aeroplane and all obstacles within the obstacle domain.

Question 87-20 : At a given altitude when a turbojet aeroplane mass is increased by 5% assuming the engines specific consumption remains unchanged its ho y consumption is approximately increased by ?

5%

Admin .for a turbojet aeroplane fuel consumption decreases or increases in proportion to the change in aeroplane weight exemple 263 5%.

Question 87-21 : What will be the effect on an aeroplane's performance if aerodrome pressure altitude is decreased ?

It will decrease the take off distance required

Admin .pressure altitude is the altitude displayed on an altimeter if you set 1013 hpa on the subscale your altimeter will show your pressure altitude above the 1013 hpa pressure level .if your pressure altitude is decreasing your actual altitude above that level will decrease too .lower altitude means denser air it means better performance and then it will decrease the take off distance required exemple 267 It will decrease the take-off distance required.

Question 87-22 : What will be the influence on the aeroplane performance if aerodrome pressure altitude is increased ?

It will increase the take off distance

Admin .pressure altitude is the altitude displayed on an altimeter if your pressure altitude indicated a high it means a reduced air density .air density has direct effect on lift drag engine performance when air density decreases aircraft performance decreases take off run will be increased exemple 271 It will increase the take-off distance.

Question 87-23 : Which of the following distances will increase if you increase v1 but vr remains unchanged ?

Accelerate stop distance

Admin .accelerated stop distance is the distance required to accelerate to v1 with all engines at takeoff power experience an engine failure at v1 and abort the takeoff and bring the airplane to a stop using only braking action without the use of reverse thrust thus if you increase v1 the accelerate stop distance asd will increase .the decision speed at take off v1 is the calibrated airspeed below which take off must be rejected if an engine failure is recognized above which take off should be continued .vr remains unchanged and vr is the speed at which rotation to the lift off angle of attack is initiated so 'take off run' 'take off distance' and 'all engine take off distance' remain unchanged exemple 275 Accelerate stop distance.

Question 87-24 : Which of the following answers is true ?

V1 is lower or equal to vr

Admin .v1 critical engine failure speed or decision speed engine failure below this speed should result in an aborted takeoff above this speed the takeoff run should be continued .vr speed at which the rotation of the airplane is initiated to takeoff attitude this speed cannot.be less than v1 or less than 1 05 x vmca minimum control speed in the air .vlof the speed at which the airplane first becomes airborne this is an engineering term used when the airplane is certificated and must meet certain requirements if it is not listed in the airplane flight manual it is within requirements and does not have to be taken into consideration by the pilot .vmcg the minimum control speed in the ground . 1459.note vmca minimum control speed in the air is located between v1 and vr exemple 279 V1 is lower or equal to vr.

Question 87-25 : The length of a clearway may be included in ?

The take off distance available

Admin . 1067 exemple 283 The take-off distance available.

Question 87-26 : How does runway slope affect allowable take off mass assuming other factors remain constant and not limiting ?

A downhill slope increases allowable take off mass

Admin .a downhill slope increases allowable take off mass .it will be easier to accelerate the aircraft assisted by the downhill component of weight therefore we can increase the mass and make 35 ft and v2 within toda however we will have to reduce v1 in case we have to stop with a heavier aircraft exemple 287 A downhill slope increases allowable take-off mass.

Question 87-27 : Provided all other parameters stay constant which of the following alternatives will decrease the take off ground run ?

Decreased take off mass increased density increased flap setting

exemple 291 Decreased take-off mass, increased density, increased flap setting.

Question 87-28 : The effect of increasing the flap setting from zero to the recommended take off setting on the length of take off distance required todr and the field length limited take off mass tom is ?

Decreased tod required and increased field length limited tom

Admin .a larger flap selection will permit to take off earlier but will decrease the path climb angle .if you have a weight limitation at take off due to the length of the runway by choosing a larger flap setting you will permit to reduce your take off run thus you can carry more weight exemple 295 Decreased tod required and increased field length limited tom.

Question 87-29 : How is vmca influenced by increasing pressure altitude ?

Vmca decreases with increasing pressure altitude

Admin .vmc speeds are cas based it means they are not affected by the air density vmca is a controlling speed with one engine inoperative .as the altitude increases we get less asymmetric thrust therefore the controlling speed of vmca decreases .increase in pressure altitude means less thrust or more correctly less asymmetric thrust the controlling speed reduces as the thrust reduces exemple 299 Vmca decreases with increasing pressure altitude.

Question 87-30 : Which one of the following is not affected by a tail wind ?

The climb limited take off mass

Admin .the climb limited take off mass cltom is a gradient requirement under the certification rules cs25 .it is an air gradient based upon pressure altitude and temperature and is unaffected by wind exemple 303 The climb limited take-off mass.

Question 87-31 : Which statement is correct ?

Vr must not be less than 1 05 vmca and not less than v1

Admin .v1 critical engine failure speed or decision speed engine failure below this speed should result in an aborted takeoff above this speed the takeoff run should be continued .vr speed at which the rotation of the airplane is initiated to takeoff attitude this speed cannot.be less than v1 or less than 1 05 x vmca minimum control speed in the air .vlof the speed at which the airplane first becomes airborne this is an engineering term used when the airplane is certificated and must meet certain requirements if it is not listed in the airplane flight manual it is within requirements and does not have to be taken into consideration by the pilot .vmcg the minimum control speed in the ground . 1459.note vmca minimum control speed in the air is located between v1 and vr exemple 307 Vr must not be less than 1.05 vmca and not less than v1.

Question 87-32 : Which of the following represents the minimum for v1 ?

Vmcg

Admin . 1459.note vmca minimum control speed in the air is located between v1 and vr exemple 311 Vmcg.

Question 87-33 : In the event of engine failure below v1 the first action to be taken by the pilot in order to decelerate the aeroplane is to ?

Reduce the engine thrust

exemple 315 Reduce the engine thrust.

Question 87-34 : If the antiskid system is inoperative which of the following statements is true ?

The accelerate stop distance increases

Admin .antiskid system the hydraulic system provides antiskid protection when the system detects a skid the associated antiskid valve reduces brake pressure until skidding stops .an inoperative anti skid system will increase the stop distance thus our asda is increased and v1 need to be decreased .take off with anti skid inoperative is permitted under condition exemple 319 The accelerate stop distance increases.

Question 87-35 : Other factors remaining constant and not limiting how does increasing pressure altitude affect allowable take off mass ?

Allowable take off mass decreases

Admin .density decreases with altitude less density will reduce take off thrust available allowable take off mass will decrease exemple 323 Allowable take-off mass decreases.

Question 87-36 : If there is a tail wind the climb limited tom take off mass will ?

Not be affected

exemple 327 Not be affected.

Question 87-37 : Which of the following sets of factors will increase the climb limited tom every factor considered independently ?

Low flap setting low pressure altitude low oat

Admin .low flap setting a higher flap setting will reduce the takeoff ground run for a given aircraft weight but it will reduce climb limited tom the flaps will reduce the best angle of attack therefore the maximum climb slope will be reduced low flap setting permits a better climb angle .low pressure altitude density is higher lift is increase .low oat cold air means that density increase lift inscreases the climb limited tom is increased exemple 331 Low flap setting, low pressure altitude, low oat.

Question 87-38 : The requirements with regard to take off flight path and the climb segments are only specified for ?

The failure of the critical engine on a multi engines aeroplane

exemple 335 The failure of the critical engine on a multi-engines aeroplane.

Question 87-39 : A head wind will ?

Increase the climb flight path angle

exemple 339 Increase the climb flight path angle.

Question 87-40 : Assuming that the required lift exists which forces determine an aeroplane's angle of climb ?

Weight drag and thrust

exemple 343 Weight, drag and thrust.


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