ATPL Question For DHL Assessment Day (DHL Interview
ATPL Questions) – With Accurate Solutions
What is the VOR change over distance? Right Ans - 60NM
What is the minimum distance between parallel runways? Right Ans -
915m
what the key points of using Mode 2 for parallel runways? Right Ans - Only
straight in approaches allowed
interception angle of no more that 30 degrees
must be straight and level 1NM for localiser
must be straight and level 2NM for Glideslope
Minimum separation of 3NM on same Loc
Min separation of 2 NM on adjacent Loc
Missed approach tracks diverge by at least 30 degree
what is the minimum time a flight plan must be filed before departure
Right Ans - 60 minutes
how does a pilot create a slip or a skid and how it is indicated on the turn co-
ordinator? Right Ans - Slip - opposite rudder to direction of turn = ball will
be at the same side of the turn
Skid - too much rudder in the direction of the turn = ball will be on the
opposite side to the turn
what time must ATC clocks be within? Right Ans - 30 seconds
what are the Airspace separations rules for Class A Right Ans - IFR Only
What are the Airspace separation rules for Class B Right Ans - IFR and VFR
seperated
What are the Airspace separation rules for Class C Right Ans - IFR
separated from IFR
IFR Separated from VFR
VFR Info about VFR
,Speed limited below FL100 250kts
IFR ( speed limit only on ATC instruction)
What are the Airspace separation rules for Class D Right Ans - IFR
Separated from VFR
IFR Info about VFR
VFR Info about VFR
Speed limit below FL100 250kts
what its the difference between class D and Class E airspace for VFR Right
Ans - No ATC required
No SVFR
What is Load Shedding Right Ans - Reducing electrical load on the system
by turning of unnecessary electrical components
how would an artificial feel unit be connected? Right Ans - In Parallel
otherwise if it failed it would stop the system
what are booster pumps Right Ans - low pressure centrifugal boots that
supply fuel to the engines.
why are booster pumps important? Right Ans - they prevent cavitation of
the engine driven pumps at high altitude.
what is the purpose of baffle valves Right Ans - to prevent fuel flowing the
the wing tips to keep it in the centre near the pumps
what is a feeder box Right Ans - a box arounds the booster pumps that
keeps the pumps submerged in fuel to prevent cavitation
how do you switch off the magneto Right Ans - ground the primary circuit
how is the twin jet fuelled Right Ans - by fuel being pumped from the fuel
truck
what type of fire extinguisher do you use on propane fire Right Ans - foam
,what is the difference between IAS and CAS (calibrated Airspeed) Right
Ans - corrected for instrument positional errors
what is the difference between CAS and TAS (true Airspeed) Right Ans -
Corrected for changes in air Density
when is ground effect felt? Right Ans - half the wingspan from the ground
what is interference drag? Right Ans - Drag caused by interaction of
boundary layers at major aircraft components
what are high aspect ratio wings Right Ans - long thin wings
what are low aspect ratio wings Right Ans - short fat ones
why are all jet liners wings swept Right Ans - they are better at close to
mach
where does the Pulmonary artery pump blood to? Right Ans - the lungs
what is reduced when someone hyper ventilates Right Ans - CO2
how long such you void flying for after giving blood? Right Ans - 24 hrs
what percentages of accidents are caused by human error Right Ans - 70%
What is the tropopause? Right Ans - The boundary between the
troposphere and the stratosphere.
Where temp no longer increases with height
what does the air need to be at the summit of a mountain to cause mountain
waves? Right Ans - stable
what does they wind need to be doing with increasing altitude to cause
mountain waves? Right Ans - increasing
why won't cirrus clouds cause icing Right Ans - they are already ice
crystals
, what side of the polar jet stream in the most turbulence on? Right Ans - the
cold side
what is Grivation Right Ans - the combination of Grid convergence and
magnetic variation
what is ISA? Right Ans - Temp 15
Pressure 1013.35
Density 1225
- 2 c per 1000ft
27ft per 1 Hpa
What is pressure Altitude? Right Ans - the vertical distance from ISO
how many nautical miles is one degree of latitude? Right Ans - 60NM
where is the magnetic pole? Right Ans - North Canada
what cool would the magnetic pole be? Right Ans - blue
what is the formula for rate of descent and ground speed for a 3 degree glide
slope Right Ans - 5 x Ground speed = Rate of Descent
what air is used to cool the air in the boot leg air conditioning system?
Right Ans - Ramp air
what are the advantages of cruising at high altitudes Right Ans - faster
more efficient
above bad weather
what does the pack flow control valve Right Ans - controls the flow of bleed
air in to the Air con packs
how many heat exchangers are there is bootstrap system Right Ans - 2
primary
main(secondary)
For the localiser, what frequency is on the left and right lobes Right Ans -
left - 90 hz - Yellow
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