Question 78-1 : The purpose of the flight data recorder fdr is to record specific parameters such as .1 time.2 attitude.3 airspeed.4 flaps/slats configuration.the combination that regroups all of the correct statements is ? [ Procedure Manual ]
1 2 3 4
Cqb15 may 2012 ..the following main parameters are recorded on the fdr . time or relative time count. attitude pitch and roll . airspeed. pressure altitude. heading. normal acceleration. propulsive/thrust power on each engine and cockpit thrust/power lever position if applicable. flaps/slats configuration or cockpit selection. ground spoilers and/or speed brake selection
Question 78-2 : The purpose of the cockpit voice recorder cvr is to record .1 communications transmitted or received by radio.2 communications of crew members using the public address system.3 some air data parameters.the combination that regroups all of the correct statements is ?
1 2
Revised ecqb03 july 2016 ..the main parameters recorded on the cvr are . voice communications transmitted from or received on the flight deck. the aural environment of the flight deck. voice communication of flight crew members using the aeroplane's interphone system. voice or audio signals introduced into a headset or speaker. voice communication of flight crew members using the public address system when installed
Question 78-3 : The purpose of the cockpit voice recorder cvr is to record .1 the audio environment in the flight deck.2 specific aircraft performance parameters.3 the communications of crew members using the interphone system.the combination that regroups all of the correct statements is ?
1 3
Ecqb03 july 2016 ..a cockpit voice recorder with reference to a time scale records . voice communications transmitted from or received on the flight deck by radio. the aural environment of the flight deck. voice communications of flight crew members on the flight deck using the aeroplane's interphone system. voice or audio signals identifying navigation or approach aids. voice communications of flight crew members on the flight deck using the public address system if installed .in fact a cockpit voice recorder needs plenty of microphone .the cvr must be crash resistant .the cvr doesn't have a battery his power comes from the airplane electrical system .a flight data recorder is similar to a cvr unless it records data time altitude attitude heading airspeed engine power .the cvr must be fitted with a device to assist in locating it in water but the battery of this device is not a battery for the cvr work
Question 78-4 : When pressing the push button event on the unit control of a flight data recorder ?
A mark is set on the recording enabling this event to be found rapidly at a subsequent analysis
Question 78-5 : Regarding the operating system used for an on board documentation charts and company information ?
There are no certificate requirements
Revised ecqb03 july 2016
Question 78-6 : In computing what is the function of a control unit ?
It ensures sequencing and co ordination of operations
Question 78-7 : The central processing unit cpu of a computer essentially consists of .1 an arithmetic and logic unit.2 a control and timing unit.3 registrers.the combination that regroups all of the correct statements is ?
1 2 3
Admin .central processing unit cpu it is the heart or core component of cpu . 1030. its major structural components are control unit alu registers and cpu interconnections . control unit it controls the operations of the cpu and hence the computer system . arithmetic logic unit alu it performs the computers data processing functions. registers it forms the internal memory for cpu it provides storage internal to the cpu
Question 78-8 : Regarding computer design architecture identify whether the following statements are correct or incorrect .1 a multi core processor includes at least two physical processor units.2 multitasking can only be software ?
1 is correct and 2 is incorrect
Admin .multitasking multiple tasks share common resources such as the same central processing unit cpu .multitasking method is a software solution .multiprocessing two or more central processing units cpus are used within a single computer .multiprocessing configuration is a hardware solution .a multiprocessing configuration results in more powerful performance than the multitasking method it's like having 2 engines instead of 1
Question 78-9 : Which of these statements about computer architecture are correct or incorrect .1 multiprocessing configuration is a hardware solution.2 multitasking method results in more powerful performance than a multiprocessing configuration ?
1 is correct and 2 is incorrect
Admin .multitasking multiple tasks share common resources such as the same central processing unit cpu .multitasking method is a software solution .multiprocessing two or more central processing units cpus are used within a single computer .multiprocessing configuration is a hardware solution .a multiprocessing configuration results in more powerful performance than the multitasking method it's like having 2 engines instead of 1
Question 78-10 : The software used to run the atsu application atc and aoc ?
Is certified according to an equipment certification standard ed12b do178b
Admin .the software used to run the atsu air traffic service unit application for air traffic communications and airline operations communications atc and aoc is certified according to an equipment certification standard see document referenced rtca/do 178b or eurocae ed 12b .'software considerations in airborne systems and equipment certification' rtca/do 178b or eurocae ed 12b is a document dealing with the safety of software used in airborne systems .the failure conditions are categorized by their effects on the aircraft crew and passengers .eurocae document ed 12b was developed to establish software considerations for developers installers and users when the aircraft equipment design is implemented using software based techniques current and future avionics designs will make extensive use of this technology the eurocae document provides guidelines for establishing software levels software life cycle planning development verification configuration management and quality assurance disciplines to be used in software based systems .examples of airline operations communications aoc datalink messages . oooi out of the gate off the ground on the ground into the gate . load sheet. passenger information connecting flights . weather reports metar taf . maintenance reports engine exceedances . free text messages.examples of of air traffic communications atc datalink messages . departure clearance. oceanic clearance
Question 78-11 : Which document deals with considerations of software use in on board aircraft computers ?
Rtca/do 178b
Admin .'software considerations in airborne systems and equipment certification' document referenced as rtca/do 178b or eurocae ed 12b
Question 78-12 : Which of these statements about computer architecture are correct or incorrect .1 the software part does not include the programmes that make up the operating system os .2 the hardware part does not include the physical components of the computer ?
1 is incorrect 2 is incorrect
Admin .the operating system os is a software that acts as intermediary between applications and computer hardware .hardware part includes the physical components of the computer cpu hard drive memory .at the exam this question also appears with the statements the software part includes the programmes that make up the operating system os and the hardware part includes the physical components of the computer which in this case is correct/correct
Question 78-13 : In computer architecture the software is defined as ?
A collection of computer programs
Question 78-14 : In computer architecture the hardware is defined as ?
The physical components of a computer system
Admin .hardware part includes the physical components of the computer cpu hard drive memory
Question 78-15 : In computer architecture a bus is a system that ?
Transfers data between computer components
Question 78-16 : In a basic computer the input and output devices are typically .1 a printer.2 a keyboard.3 a display.4 an optical disk.the combination that regroups all of the correct statements is ?
1 2 3 4
Question 78-17 : A basic computer 'von neumann architecture' type uses ?
A processing unit and a single storage structure to hold both instructions and data
Question 78-18 : A machine for manipulating data according to a list of instructions is ?
A computer
Question 78-19 : In computer architecture the a system that transfers data between computer components is ?
A bus
Question 78-20 : On an aeroplane without central fuel tank the maximum zero fuel mass is related to ?
The bending moment at the wing root
The maximum zero fuel mass is a regulatory limitation cs23 and cs25 it is a design limitation to prevent wing bending and it is defined on the assumption that fuel is consumed from the centre wing tank first .without central fuel tank the maximum zero fuel mass remains related to the bending moment at the wing root
Question 78-21 : Considering only structural limitations on long distance flights at the aeroplane's maximum range the traffic load is normally limited by ?
The maximum take off mass
Maximum zero fuel mass is dry operating mass + traffic load .maximum take off mass is dry operating mass + traffic load + fuel .on long distance flight you need lots of fuel and fuel does not count as part of the traffic load thus the traffic load is normally limited by the maximum take off mass if you need more fuel to perform the flight you will normally need to reduce the traffic load because the maximum take off mass will be reached
Question 78-22 : Loads must be adequately secured in order to ?
Avoid unplanned cg movement and aircraft damage
Cg will move during the flight this change of cg can be planned loads must be adequately secured in order to avoid unplanned cg movement .tragic example .on august 7 1997 fine air flight 101 a cargo dc 8 61f registration n27ua en route from miami to santo domingo in the dominican republic suffered sudden movement of cargo materials in the aft cargo hold while on take off the aircraft's nose rose steeply due to the sudden uneven weight distribution caused by shifting boxes of denim material that had not been securely fastened .the pilots departing out of the runway 27r attempted to recover but the aircraft stalled and crashed onto a field adjacent the miami city rail yard less than a mile from the airport .the only deaths were those of the three aircrew members a company security guard on the flight and a man in a parking
Question 78-23 : What determines the longitudinal stability of an aeroplane ?
The location of the centre of gravity with respect to the neutral point
Neutral point easa definition .the aft position of the aircraft centre of gravity where the aircraft is on the point of becoming unstable it is point where longitudinal stability becomes neutral
Question 78-24 : The zero fuel mass of an aeroplane is always equal to ?
The take off mass minus the mass of fuel while setting take off thrust
Question 78-25 : If the centre of gravity is near the forward limit the aeroplane will ?
Require elevator trim which will result in an increase in fuel consumption
Question 78-26 : The maximum taxi ramp mass is governed by ?
Structural considerations
The maximum taxi or ramp mass is the maximum weight authorised for manoeuvring taxiing or towing an aircraft on the ground as limited by aircraft strength and airworthiness requirements it is governed by structural considerations
Question 78-27 : When considering the effects of increased mass on an aeroplane which of the following is true ?
Stalling speeds will be higher
Question 78-28 : If an aeroplane is at a higher mass than anticipated for a given airspeed the angle of attack will ?
Be greater drag will increase and endurance will decrease
Since you have to generate more lift for a same speed drag increases to counteract this drag fuel consumption will increase endurance decreases
Question 78-29 : Which of the following is most likely to affect the range of centre of gravity positions on an aeroplane ?
Elevator and tailplane horizontal stabiliser effectiveness in all flight conditions
Every aircraft has a maximum forward and rearward cg position at which the aircraft is designed to operate operating an aircraft with the cg outside these limits affects the handling characteristics of the aircraft
Question 78-30 : During a violent avoidance manoeuvre a light twin aircraft certified to easa cs 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 +3 8 .considering the certification ?
A permanent deformation of the structure
The easa cs 23 requirements state that safety margin is 1 5 .3 8 x 1 5 = 5 7g.at 4 2g we remain below the ultimate load rupture but it might be possible to observe a permanent deformation of the structure
Question 78-31 : For a given configuration the stall speed of an aeroplane will be highest when loaded ?
To the maximum allowable mass with the most forward cg
A heavier aircraft needs to push more air downward to generate enough lift to maintain level flight to generate more lift you need to increase airspeed or angle of attack .at the same airspeed a heavier airplane will need a higher angle of attack to maintain level flight at the same angle of attack a heavier airplane will need a higher airspeed to maintain level flight thus stall speed is higher for a heavier airplane .the most forward the cg is the more down force the tail needs to generate to compensate and keep the airplane from pitching down this increased down force must be counteracted by increased lift from the wing that of course means an increase in angle of attack or airspeed = the stall speed increases
Question 78-32 : Comparing a forward cg position with an aft one the forward cg position will cause a ?
Decrease in range
A aft cg will have the folowing effect . decreased stability . decreased down tail force required leading to less drag and less fuel consumption .the forward cg position will cause an increasing down tail force required leading to more drag and leading to more fuel consumption resulting in a decreasing range
Question 78-33 : In cruise flight an aft centre of gravity location will ?
Decrease longitudinal static stability
Positive longitudinal static stability is the initial response in pitch in level flight to return to equilibrium around a trim point after displacement by a gust or by the temporary movement of the elevator control .static stability decreases as the centre of gravity moves aft toward the neutral point .when a gust or a pilot input increases or decreases angle of attack it will produce a more important destabilizing moment
Question 78-34 : Overloading has the following effects on performance ?
Increased take off and landing distance reduced rate of climb and increased fuel consumption
Question 78-35 : Which of the following statements is correct ?
The maximum landing mass of an aeroplane is restricted by structural limitations performance limitations and the strength of the runway
The maximum landing mass is the maximum aircraft mass due to design or operational limitations at which an aircraft is permitted to land .performance limitations are due to the length of the runway or presence of obstacle in the 'go around' path you will have to maintain a minimum climb gradient in case of go around
Question 78-36 : Which of the following statements is correct ?
A tail heavy aeroplane is less stable and stalls at a lower speed than a nose heavy aeroplane
The question is talking about the centre of gravity being towards the rear of the envelope compared to near the front as opposed to out of the envelope on either side within the envelope the further forward nose heavy the greater the stability good thing but the price is paid in greater wing loading induced by tail down elevator to balance the forward centre of gravity .this leads to higher stalling speed bad thing .if tail heavy by contrast stability is reduced bad thing but stall speed is lower good thing as there is less need for the wing load inducing tail down elevator
Question 78-37 : 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 ?
Altitude and temperature of the departure airfield
Altitude and temperature affect your performances engine thrust and lift even if an exceptionally long runway will permit to take off regulations state that you must also be able meet a minimum value of climb performance thus the limiting factors are altitude and temperature of the departure airfield
Question 78-38 : 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 ?
A high threshold speed and possible undercarriage or other structural failure
As the actual landing mass will be much higher than normal for landing we need a higher approach speed stall speed is increased and approach speed is equal to velocity stall x 1 3 .and as we are heavier than normal for landing there may be undercarriage or other structural failure .an overweight landing is generally recommended under the following conditions . a malfunction that seriously affects the airworthiness of the aircraft . a condition where an expeditious landing would reduce the exposure to a degrading level of safety . one engine inoperative although a one engine out condition affects the aircraft performance and handling characteristics a landing must be considered in order to reduce the exposure toadditional problems with the remaining engine . a serious illness on board requiring immediate medical attention .after an overweight landing company maintenance staff must be advised and appropriate maintenance checks carried out before further flight
Question 78-39 : The effect of the centre of gravity cg being close to the forward limit is ?
A reduced rate of climb capability
The forward cg limit is defined as the most nose heavy loading condition that will allow the aircraft to be rotated on takeoff and flared upon landing .with a centre of gravity close to the forward limit you need a large up deflection on tail horizontal stabiliser to maintain at least horizontal flight if you need to climb you will quickly reach the maximum up deflection your rate of climb capability is reduced
Question 78-40 : The maximum zero fuel mass is a mass limitation for the ?
Strength of the wing root
Maximum zero fuel mass is the maximum permissible mass of an aeroplane with no usable fuel the mzfm is a structural limit based on the bending moments of the wing root
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