general knowledge

Question 1

lift formula

Answer 1

Cl x 1/2 Rho x V² x S

Question 2

3 types of drag

Answer 2

Parasite, profile, induced

Question 3

magnetic variation

Answer 3

angular difference between true North and magnetic North

Question 4

deviation

Answer 4

angular difference between magnetic North and compass North

Question 5

to overcome turning compass errors pilot needs to

Answer 5

overshoot North or undershoot South by ten degrees

Question 6

accelerating/ decelerating compass errors

Answer 6

When the aircraft is on a Westerly or Easterly heading an acceleration will cause the compass to show an apparent turn to the South, (deceleration, apparent turn to the North). SAND

Question 7

3 factors influencing the build up of carby Ice

Answer 7

fuel evaporation, temperature drop due to the pressure drop, humidity

Question 8

standard atmosphere

Answer 8

1013 HPA at sea level

sea level temperature of 15°C

Question 9

validity of the forecast

Answer 9

30 min before and 60 after planned ETA

Question 10

pressure decrease in standard atmosphere

Answer 10

1 Hpa/30ft

Question 11

lapse rate in standard atmosphere

Answer 11

2°C/1000ft

Question 12

temperature variation for density altitude calculation

Answer 12

One degree variation to ISA Temperature = 120ft