WIZZ PASS tech test Flashcards
how many destinations does Wizz air fly to
-970+ operated routes
- 200 airports served
- 50 countries
call sign Wizz Air Hungary
Wizz air
call sign Wizz Air Uk
Wizz go
callsign Wizz Air Abu Dhabi
Wizz Sky
callsign Wizz Air Malta
Wizz Air Malta
what is Wizz Airs most northern destination
Tromso, Norway (TOS)
who is the CEO of Wizz Air
Jozsef Varadi
what is the Wizz Air ICAO and IATA code
icao- WZZ
IATA- W6
when did the first flight take place and what was the destination
-19th May 2004
- Katowice Poland to London Luton
which subsidiaries does wizz air have/from which airlines is the Wizz Air Holding composed?
- Wizz Air Hungary (W6/WZZ-2003) {HA}
- Wizz Air Uk (W9/WUK-2017) {G}
- Wizz Air Abu Dhabi (W5/WAZ-2020) {A6}
- Wizz Air Malta (W4/WMT- 2022) {9H)
how many aircraft do Wizz have on order
placed total order 425 aircraft
- 13 A320 neo
- 297 A321NEO
-47 A321 XLR (from 2024)
*aiming for 500 aircraft on fleet within 2030
wizz most eastern destination
-Almaty Kazakhstan
how many bases do wizz have in Romania
-6: Bucharest, Cluj Napoca, Craiova, lasi, Sibiu and Timisoara
what engines are installed on wizz Aircraft
- Pratt & Whitney GTF
- International Aero v2500
When was Wizz Air listed on th London Stock Exchange
2015
how many pax did wizz transport in the last year
over 60 million passengers (2023)
what is the most southern destination of Wizz
Male, maldives
what is the most western destination of Wizz
Reykjavik, Iceland
how many bases does Wizz Air have
- 34
when was wizz air founded
september 2003
wizz air fleet info (in service, average fleet age)
aircraft in service: 183
average fleet age: 4.6 years
- A320-200 (IAEV2500): 40 in service (gradual phase out)
- A320 neo (PW1100 GTF series): 6 in service all operated by Wizz air malta (13 in order)
- A321-200 (IAEV2500): 41 in service
- A321NEO (PW1100 GTF): 95 in service, 292 on order; deliveries planned until 2029
-A321XLR: 47 in order; deliberies 2024-2028 - A320-200F: part of Wizz Air cargo fleet, 1 in service for govt of hungary
where are the Wizz Air Operational and Financial headquarters
operational: Budapest
Financial; Geneva
how many bases do Wizz Air have in Poland
5
- Katowice
- Krakow
-Warsaw
- Gdansk
- Wroclaw
what are ribs for in Wings
- give a wing its cambered shape
-transmit loads from the skin and stringers to the spars
how many seats are there on and A321CEO
230 seats
how many seats are there on the A320
-180 or 189 seats depending on model
what can increase optimum altitude
- reducing aircraft weight
what is a conditional ATC clearance
- used to expedite flow of traffic at a busy runway or time management tool on a busy frequency
consists of:
- identification, condition, clearance and reiteration of condition
which index color of the Aeronautical Information Circular (AIC) contains info about ATS facilities
- yellow
what is produced by the coalescence process in the mid latitudes
- only drizzle or very light rain
definition of ASDA
ASDA=TORA + Stopway
in case of SSR transponder failure occuring after departure of an IFR flight, the pilot shall
- inform competent ATC unit immediately
purpose of baffle check valves
- let fuel to flow to the low inboard sections but stop it flowing outboard
what are the different AIC colours
WHITE- admin matters
YELLOW- operational matters including ATS facilities and requirements
PINK- safety related topics
MAUVE- uk airspace restrictions
GREEN- Maps and Charts
what is the meaning of CEO and NEO on airbus
CEO: Current Engine Operation
NEO: New Engine Operation
What does the registration mark consist of and by who is it assigned
- letters, numbers or a combination of letters and numbers
- assigned by the state of registry
best visual landmarks for a VFR flight
- large water reservoir
- excessively high mast
- high tension power line
definition of TODA
TODA= TORA + CLEARWAY
transponder code 7600 meaning
- comms failure
purpose of an air traffic control ATC clearance
- authorisation by ATC, for the purpose of collision prevention , for an aircraft to proceed under specified conditions within controlled airspace
what is the effect on the stall speed when weight is increased
stall speed increases
what factors affect stalling speed: CoG
- CG: fwd cg INCREASES stalling speed because of extra lift the wings must produce
what factors affect stalling speed: mass
- AC MASS: greater mass requires greater lifting force. STALL SPEED INCREASES
what factors affect stalling speed: wing loading
- WING LOADING: increases the adverse pressure gradient, triggering seperation. STALL SPEED INCREASES
what factors affect stall speed: thrust
- At high pitch angles thrust contributes to lift. STALL SPEED REDUCES
What factors affect stall speed: propeller slipstream
- adds to upper surface flow velocity. REDUCING STALL SPEED
What factors affect stall speed: wing contamination
- contamination disrupts and slows the boundary layer. STALLING SPEED INCREASES
What factors affect stall speed: Sweep angle
airflow is not perpendicular to the wing; STALLING SPEED INCREASES
An aeronautical station wishing to put out a general call to all aircraft in its area should address the call including which content
“ALL STATIONS”
a change in direction of a radio wave due to a change in its speed is called
refraction
purpose of hydraulic thermal relief valves
- relieve excess pressure caused by temperature rises
at night an ac observes luminous signal requesting help. to indicate that he has received the ground signals, the pilot must do what
- switch landing light on and off twice
- if not so equipped, nav lights twice
why are high latitude flights in polar regions subject to specific problems with the use of a gyro magnetic compass
- region surrounding north magnetic pole, accurate values of magnetic variation impossible to quantify
- in high latitudes adjacent to this area, the value of magnetic variation changes so rapidly
what is the correction factor for landing on a wet runway
- x1.15
- LDA shall be atleast 115% of the required
Straight flight, as speed increased, whilst trimming to keep stickforce 0, in which direction (downwards or upwards) are the elevator and trim tab deflected
- trim tab further upwards
- elevator deflected further downwards
how can the whiteout effect be defined
- weather condition that can cause disorientation and low visibility in snow, overcast cloud and fog
- defined: condition of diffuse light when no shadows are cast, due to a continuous white cloud layer appearing to merge with the white snow surface; no visible horizon; no surface irregularities
minimum time separation for departing LIGHT or MEDIUM aircraft taking off behind a heavy aircraft (departing same position)
2 minutes
what is the minimum time seperation for a departing LIGHT or Medium aircraft when taking off behind a heavy aircraft using
- an intermediate part of the same runway
-intermediate part of a parallel runway separated by less than 760 m (2500ft)
3 mins
what is the main factor which contributes to the formation of very low clouds ahead of warm front
-saturation of the cold air by rain falling into it and evaporating
PIC is informed that extra cargo is being loaded FWD of CG. what would the trim adjustment be, FWD or AFT?
- AFT: Lowering the leading edge of the stabiliser
How is TAT calculated
TAT = SAT + RAMRISE
*SAT- ambient temp outside of aircraft; measured in freeflow
*TAT= SAT with ramrise taken into account
* ramrise = compression effects and frictional effects
can the aircraft operators CG limitations be less or more restrictive than the manufacturers CG limitations
- more restrictive
for propellers that rotate clockwise, which engine will be considered the critical engine
- left engine
- clockwise rotating; left engine will be critical engine because RIGHT ENGINE WILL CAUSE GREATER YAWING MOMENT
ac due to depart from a high airport in the tropics at 1400. airport has exceptionally long runway. what would be the most limiting factor in determining take off mass
- temperature and altitude of the departure airfield
mountain effect, occurring for instance with NDBs , is caused by what physical phenomenon
- reflection
what is induced drag
- byproduct of lift
- produced by the passage of a wing through air
- greatest when max lift is being developed usually at low speeds or high angles of attack ( during takeoff or landing)
What is the difference between DOM and ZFM
- DOM is total mass of aeroplane ready for a specific type of operation excluding usable fuel and traffic load
- ZFM is DOM+TRAFFIC LOAD but excluding fuel
what processes take place in the carburettor
- the engine component where fuel and air mixing is taking place
what is EGT
- Exhaust Gas Temperature
- measured on the turbine stage of the engine
-exceeding this temperature is increasing the risk of turbine blade creep
what is a microburst and what is windshear
MICROBURST- strong downdraught from the base of a CB usually 4km in diameter
WINDSHEAR- vertical or horizontal change in wind direction or windspeed over a short distance
when is a jet engine most effective
- high altitude and high RPM speed
- due to low density, minimum cruise airframe drag
- best engine specific fuel consumption
what do you call the change of ice directly to water vapor
sublimation
what is a rhumb line and what is a great circle
- RHUMB LINE: line between 2 point on the earths surface cutting all meridians at the same angle
- GREAT CIRCLE: shortest line between two points on the surface of the earth
where does the weight act when and aircraft is parked on the ground
- through the CofG
10 minutes on a meridian is equal to
- 10 nm
- 1minute= 1nm
what do you call the change of water vapour directly to ice
resublimation/deposition
what is the required (minimum acceptable) RFFS category for airbus A320, A321, A330
A320= CAT 6
A321= CAT 7
A330= CAT 8
What kind of weather can you expect in low pressure area and high pressure area
- LOW PRESSURE: low cloud base, precipitation, mild temperature, good visibility outside precipitation
- HIGH PRESSURE AREA: Clear skies, hazy weather, poor visibility, inversions
what are the phases of a reciprocating engine
- induction, compression, combustion, exhaust
- process is intermittent and takes place at constant volume
how does thrust reverse work on a jet engine
- change of direction of the bypass flow
- it works on the redirection of the airmass produced by the fan
ac experiences HDW of 40 kts making its way towards the centre of a microburst, when crossing the microburst, how many knots od windshear can be expected
- 80 kts
in which stage of CB clouds can you expect an anvil
mature stage
in an upper weather chart, the wind is in relation to true or magnetic north?
wind is in relation to true north
what are the phases of a jet engine
- same as piston engine; Induction, Compression, Combustion, Exhaust
- but this process is continuous and takes place at constant pressure
who is the Master Minimum Equipment list established by and who is it accepted by
- established by: manufacturer
- accepted by: authority
what is net performance and gross performance
GROSS: average performance that a fleet of aeroplanes should achieve if satisfactorily maintained and flown in accordance with the techniques described in manual
NET PERFORMANCE: gross performance diminished to allow for contingencies ( weather, maintenance, flying techniques)
you have landed on a runway in bad weather conditions, alternating red and white centreline lights are visible. how much runway will you have left
-300M
- WHITE- threshold to 900m of rwy end
RED AND WHITE- 900m to 300m
Red- last 300m of the runway
if you have net performance, you are clear of an obstacle by how many feet
35ft
an airmass is considered unstable when?
- an ascending parcel of air continues to rise to a considerable height
regarding the FMS, the cost index is determined by dividing which values
operating cost/fuel cost
you see yellow lights near the centreline. what does this indicate?
- rapid exit taxiway
- you see the sequence of 3 then 2 then 1, spaced 100m apart
- if you see only one it means 100m is left to the taxiway
what is MSA? what is MEA? MOCA?
- MINIMUM SECTOR ALTITUDE: when 1000ft obstacle clearance within 25nm radius of a radio facility or reference point
- MINIMUM ENROUTE ALTITUDE: lowest published altitude between radio fixes that provides obstacle clearance within 5nm eitherway of the airway centreline
-MINIMUM OBSTACLE CLEARANCE ALTITUDE:
lowest published altitude between radio fixes on VOR airways, off airway routes or route segments which meets obstacle clearance requirements
what is the screen height and the takeoff part of the flight
- distance from Brake Release Point (BRP) to screen height
- imaginary curtain 35ft high (50ft for class B) which must be cleared by the lowest part of the aircraft (landing gear or tail)
- wet runway screen height reduced to 15ft
landing on a RWY in bad weather conditions, alternating red and white centreline lights are visible. how much runway will you have left
- not more than 900m
if a pitot source is blocked in an ASI and the drain hole is blocked, but the static source is open, what will happen?
- in descent while pitot blocked; pressure in capsule no longer changes static pressure in case increases, compressing the capsule; ASI UNDEREAD/ SHOWING DECREASING AIRSPEED
- CLIMB= static pressure reduces= ASI SHOWING INCREASE IN SPEED
what is a sharklet
- blended wing tip design
- reduces induced drag by not letting air from the underside of wing to flow in the wing root direction thus creating wing tip vortices
what are the ICAO CAT I II III minimums, qualifications
CAT I: 200 ft system minima, DH not less than 200 ft, RVR not less than 550m
CATII: 100 ft system minima, DH less than 200ft greater than 100ft, RVR not less than 350m
CATIIIA: DH less than 100ft or no DH, RVR not less than 200m
CATIIIB: DH less than 50ft or no DH, RVR less than 50m
what kind of line does taxiway markings have
- continued yellow
what lights can be seen on a taxiway
- centre lights : GREEN
- edge lights: BLUE
a runway is 2000m long, you can only see amber edge lights. How much runway will you have left
- atleast 600m
- runway edge lights must be installed for
- any runway used at night
- all precision approach runways
- daytime use with RVR below 800m
- row of fixed, variable intensity white lights is set on each edge for the length of runway except that:
- a section of 600m or one third of runway length whichever is less, may show yellow edge lights at the upwind end of the runway
- for displaced thresholds, the lights between the beginning of the runway and displaced threshold are red
what is vx and vy
VX: best angle of climb (highest altitude in shortest distance)
Vy: best rate of climb (highest altitude in a given time)
when is fog reported and what are the different types of fog
- when visibility is below 1000m
RADIATION FOG: winter clear sky,calm wind, land cooling of air close to the surface at night by thermal radiation
EVAPORATION FOG: cold air over warm moist surface
ADVECTION FOG: mild moist airstream over snow covered ground; windspeed <10kts
FRONTAL FOG: area ahead of warm front is subject to prolonged continuous rain and the same air mass is pushed ahead of the front. reduction in visibility is caused by the very high humidity
What is BCMG on a TAF
- used when a gradual change in conditions expected over a longer time period- USUALLY 2 HOURS
- change will occur at an unspecified time within this period
what is a TAF and METAR
TAF: Terminal Aerodrome Forecast
-forecast; predicted weather at an aerodrome; 9 hour or 24hr period
- standard 9hr TAF updated and reissued every 3 hours
METAR: Aerodrome Actual Met Report
- report giving actual weather conditions at aerodrome at the time of the report
- issued every 30mins during the opening hours of the aerodrome
what is veering
- clockwise change of wind direction
what is geostrophic wind and why is it more difficult to achieve geostrophic balance in equatorial latitiudes
- steady wind blowing parallel to straight isobars
- more difficult to obtain geostrophic balance in equatorial latitudes as coriolis force is weak
what are the different types of cloud coverage
FEW 1-2 OKTAS
SCT 3-4 OKTAS
BKN 5-7 OKTAS
OVC 8 OKTAS
What is MOCA
Minimum Obstacle Clearance Altitude
- lowest published altitude between radio fixes on VOR airways, off airway routes or route segments which meets obstacle clearance requirements
where can you expect the strongest CAT in a jet stream
- side of the jet adjacent to the cold air and just below the jets core
- its to the left when looking downstream of a jet
what is backing
anticlockwise change in wind direction
what is a jet stream? how do they form? minimum windspeed to be classified as a jet stream?
- strong, narrow band of fast moving air just beneath the tropopause. characterised by strong vertical and horizontal windshear generating CAT
- at boundaries between warm and cold air, temperature difference is large enough to generate very high velocity winds (jet streams) in the warmer air just below the tropopause
- windspeed must be greater than 60kts
what is Gradient wind
- wind that blows around curved isobars ( wind around pressure systems)
in reference to what is the cloud height defined in a METAR/TAF
- cloud height is defined above ground level (AGL)
what is MORA? and GRID MORA
MORA: MINIMUM OFF ROUTE ALITITUDE
- provides the reference point clearance within 10nm of the route centreline and end fixes
- 2000ft terrain clearance in mountainous areas
-1000ft in non mountainous regions
GRID MORA
- provides reference point clearance within a section outlined by lines of latitude and longitude
- 1000ft where reference is 5000ft or lower
- 2000ft where reference is more than 5000ft
what is a trend and NOSIG
- the forecast for the next two hours at the time of observation
- NOSIG= no significant change in the next 2 hours
you are standing with your back to the wind on the northern hemisphere, where is the centre of high pressure
-right
- in northern hemisphere , standing with bavk to the wind, low pressure will be on your left
what is meant by the term fading
- interference of the ground and sky waves
what does TEMPO mean
- Temporary change to the forecast lasting not more than 1 hour or half of the indicated time period
is the wind direction in a METAR/TAF in reference to true north or magnetic north
- wind direction in a METAR/TAF is in reference to degrees TRUE NORTH
- what you read = TRUE
*what you hear= MAG
When is the drag minimum
- when the parasite drag and induced drag are equal
- VMD
what is a balanced field
- when TODR = ASDR
What is the optimum altitude
- altitude at which an airplane is most efficient
- lowest fuel consumption; where given thrust setting corresponds to max range speed
what is induced drag
- by product of lift
- high pressure from below the wing tries to flow towards low pressure at top of the wing over the wing tip in the wing root direction; creating wing tip vortices
- as speed increases wing tip vortices decrease
what should be the indication on the magnetic compass when you roll into a standard rate turn to the left from a south heading in the northern hemisphere
- compass will indicate a turn to the left, but at a faster rate than is actually occuring
- UNOS
what is LDA
- starts 50 ft above the threshold and reaches to the end of the runway
what is parasite drag
- drag resulting from interference of the airplane body with the airflow
- dependent on body shape, skin friction and basically resistance in its motion through the air
- as the speed increases, parasite drag increases
what is happening to the optimum altitude during a flight
- as the mass of the aircraft reduces due to fuel burn, the optimum altitude increases
which front moves faster, a cold front or a warm front
- cold front moves faster than warm fronts
- cold air is denser thus more molecules of material in cold air than in warm air
what is the standard holding pattern
- right hand
- outbound time below FL140: 1MIN
- outbound time above FL140: 1.5 MINS
- speed for max range
what is the tropopause
- boundary layer between troposphere and stratosphere
- temperature stops falling with increase in altitude
name the different winds in europe
- BORA
-SCIROCCO - MISTRAL
- FOHN
what are warm front characteristics
- prior to passage of warm front: cirroform or stratiform clouds and fog along frontal boundary
- summer months: Cumulonimbus clouds (thunderstorms)
- light to moderate precipitation; rain, sleet, snow or drizzle
- poor viz
what are cold front characteristics
- unstable atmosphere, cumuliform clouds, showers of rain
what is TODA
TODA = TORA + CLEARWAY
When is the drag maximum
- at Vmo/Mmo
forces on an airplane during steady level flight
T=D
L=W
what is TORA
length of the runway suitable for use for the takeoff portion of the departure
what is the wind direction around a low pressure area in the southern hemisphere
- clockwise and towards the centre closer to the surface
- northern hemisphere
- high pressure: clockwise
- low pressure: anticlockwise
southern hemisphere
- high pressure: anticlockwise
- low pressure: clockwise
what is traffic load
mass of
- passengers
- baggage
- cargo
including any non revenue loads
what is the Allowed Takeoff Mass (ATOM)
lowest of
MZFM + T/O FUEL
RTOM
RLM + TRIP
what is ASDA
- Accelerate Stop Distance Available
ASDA= TORA + STOPWAY
What is MLM
- max permissable total mass of the aircraft on landing in normal circumstances
NTOFP
1) 35 ft to gear retraction
2) gear retraction to acceleration altitude (min 400 ft max 1000ft), speed v2
3) starts at accel alt, min 400ft, finishes when flaps retracted
4) starts when flaps retracted, MCT is set and finishes 1500ft
what is VR
- rotate speed; speed at which pilot is putting initial input to rotate the aircraft for the intention of takeoff
what is ZFM
- mass of the aircraft ready for operation with the traffic load but without usable fuel
ZFM= DOM + TL
what is DOM
mass of the aircraft ready for the specific type of operation excluding useable fuel and traffic load
Vr for transport category aircraft must be atleast
- 1.05 VMCA
what is a clearway
- area provided beyond the TORA which is free from obstacles that could cause a hazard to aeroplanes in flight
- rectangular area extending beyond the runway that is designed to assist the aircraft at the initial climb after takeoff
- extends atleast 75m either side of extended runway centreline
- lengthwise it extends to the first non frangible object
- max of 50% of TORA
what is the angle of climb
- path the aircraft is flying to a specific height over a given distance
what is v2
Take Off Safety Speed
- at which the aircraft is controllable and maintain a climb in case of engine failure at takeoff
how much windspeed can we take into calculation
50% of the HDW
150% of the TW
what is the climb gradient and how can you calculate it
climb gradient- the rate expressed as a percentage of the change in height over distance in a given time
T-D/W X100
What is the BEM
- mass of the empty airplane including unusable fuel and unusable fluids (lubrication, hydraulic), safety equipment
what is the planning LDA for a CAT A jet aircraft
60%
what is V1
takeoff decision speed at which point pilot decides either to continue or abort takeoff
- speed after which the pilot is comitted for takeoff in case of engine failure
what is the Rate of Climb and how can you calculate it
- the rate of change of height in a given time
- ground speed divided by 60 multiplied by the climb gradient in feet per nautical mile = required ROC in ft/min
after one engine failure, what airspeed will you have to maintain
VYSE- best rate of climb for single engine
what is MTOW
- max permissible mass of AC at the start of the takeoff run
what is a stopway
- area on the extension of the TORA designed to assist the aircraft to stop in case of a rejected takeoff
in which direction is the airflow on the upper side of the wing on a straight wing
- in the root direction
what is TAS
- EAS corrected for density error
- or IAS corrected for Instrument, pressure, compressibility and density errors
what is the mach number depending on
temperature
what is a hung start
- fuel ignites but engine fails to accelerate to self sustaining speed
you are taking off on he A320 in dubai, suddenly the AC has a reduced ROC. possible weather related reason
- strong inversion layer
what is EAS
CAS corrected for compressibility
you have completed the autoland. during the approach one part of the system failed. was the initial automatic landing system fail operational or fail passive
fail operational
- must have atleast 2 AP engaged for approach. failure of one still allows autoland to be carried out
what is a wet start
- fuel is already in the combustion chamber
what is the critical engine
- the engine that in case of failure will give the larger yawing moment produced by the live engine
what is a dihedral
- the up inclination of the wings
- the angle between the horizontal plane and leading edge
- increases lateral stability
when does the stall speed increase
when
- weight increases
- in a turn
- increase in load factor
- when pulled out of a spiral dive
what speed will you maintain if there is an engine failure just after takeoff and you want to maintain positive control with full control deflection
- VMCA
twin propeller aircraft with props rotating clockwise as seen from behind, which engine is critical
-left