Air NZ Tech Exam Flashcards
What situation gives the lowest MCrit.
High altitude, low temperature
What speed can you exceed?
Vno
What is Mach Number?
TAS relative to LSS with atmospheric conditions applied
Climbing at a constant speed your limiting speed will eventually be?
MMO
When is total drag at min?
When parasite and induced drag are equal.
What altitude does the temperature pause and what temperature is that?
FL360 at 56.5degrees
How long does a trend forecast last?
2 hours
What stage of a thunderstorm has the most ice and turbulence?
The mature stage
What temperatures is icing the worst?
0-10 degrees
If you depart an airport you can’t go back to how far away must an alternate be?
90 mins for two engines
60 mins for single engine cruise speed
Minimum AoB missed approach?
15 degrees
Who is responsible for separation on a visual approach?
ATC
How many seats define part 121?
30
How far apart are centreline lights
15m
DG Achronym
Every Girl Likes Sex Orally Plus Receiving Cum Misc
Radio failure procedure/
Squark 7600, fly to aid, descend in hold, fly approach.
How much distance does the lead radial give turning onto the arc?
2NM
What instrument is PUDSUC for?
ASI only
What errors do a mach meter suffer from?
Instrument and position error
What errors do mach meters not suffer from?
Density/Compresibility Error
Pressure Error
On a 3 spool turbine engine what is N1
The compressor
What does a swept wing do to MCrit and Stability?
Increase MCrit.
Decrease Stability
As a cold front passes what does your altimeter do?
Decrease in pressure as front approaches
Increase in pressure on passage of front
What temp is lightening most likely to occur
-15 to -25
True altitude calculation?
4ft/1,000ft deviation from ISA
How to regulate AC Current?
Constant Speed Drive
What does a constant speed drive to?
Maintains steady current despite varying inputs
If a GPS enters DR mode how long do you have to tell ATC
1 Minute
Why do we heat fuel?
Stop fuel waxing and to stop water in fuel from freezing
What is the primary reason for sweepback?
To increase MCrit
What assists longitudinal stability?
Tailplane
What assists Lateral Stability?
Dihedral (not ailerons)
OILS
Osciliatory instability laterally strong
Does keel surface being located behind the CoG increase or decrease directional stability?
Increase
What does an increase in flap do to V1
Reduces it
What happens to LSS with an increase in Altitude?
LSS will decrease
Effects on TAS at a constant Mach No
TAS Decreases
What happens to LSS when climbing at a constant mach number?
LSS Decreases
What happens to MCrit with a decrease in weight?
Decreased weight increases MCrit