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M7 Richard > 7.17 > Flashcards

7.17 Flashcards

1
Q

What is used to tow aircraft on soft ground?

A

A towing bridle (attached to both main wheels)

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2
Q

What direction should aircraft be towed on soft ground?

A

Forward.

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3
Q

In relation to wind, how should an aircraft be parked?

A

Into the wind.

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4
Q

What is recommended for a towing bar to be used with?

A

A damping system.

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5
Q

What are the speed limits for an aircraft with the doors shut?

A

Tractor with a tow bar (25 km/h)

Tractor without tow bar (32km/h)

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6
Q

What are the speed limits for an aircraft with the doors open?

A

10km/h

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7
Q

What is MTW?

A

Maximum Taxi Weight.

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8
Q

What is the engine thrust resistance at ground idle?

A

400 dan (for each engine)

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9
Q

What coefficients are used for the friction between the tyres of the tow tractor and the ground?

A

Asphalt= 0.8

Wet asphalt= 0.75

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10
Q

What is the maximum angle a nose wheel can be steered?

A

70 degrees.

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11
Q

What can be used to steer the aircraft if the nose wheel steering is not available?

A

Differential use of landing gear wheel brakes.

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12
Q

What CAP is the Visual Aids Handbook?

A

CAP637 (for marshalling)

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13
Q

How many jacks are used to lift an aircraft.

A

3.

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14
Q

What are the 4 types of jack?

A

Bottle jack
Bipod
Tripod
Quadrapod

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15
Q

What type of jack is used for wheel changes?

A

Bottle jack.

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16
Q

What jack is used for uneven ground?

A

Quadrapod.

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17
Q

What range of heights can hydraulic jacks be?

A

1-5m

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18
Q

How is lifting for aircraft recovery carried out?

A

Lifting airbags.

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19
Q

Why is shoring done?

A

Give support to the wings to release loads on the structure before repair work.

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20
Q

Why is protection required on probes and sensors when parking aircrafts?

A

Prevent ingress of moisture and insects.

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21
Q

What chapter is the parking and storage of aircraft under?

A

ATA chapter 10.

22
Q

What button switch closes the avionics ventilation skin valves?

A

Ditching button.

23
Q

How long is an aircraft parked for to be classed as being parked for an extended period of time?

A

More than 2 days.

24
Q

Why do seats need to be covered when parking for extended periods?

A

Protect from UV sunlight.

25
Q

When parking for extended periods, at what periodic intervals should the aircraft be checked?

A

7 and 15 day intervals.

26
Q

When parking for extended periods, why should the aircraft be moved every so often?

A

To prevent brinelling of the bearings.

27
Q

What should weekly tests be for when storing aircraft?

A

Evidence of birds nesting.

28
Q

How often should aircraft be moved to prevent brinelling when storing aircraft.

A

Bi-weekly.

29
Q

If an aircraft is parked for more than 20 months then what is recommended?

A

Old tyres are used on the aircraft.

30
Q

What should be done to the doors every month for stored aircraft?

A

Open and reapply protective greases to door seals.

31
Q

What are the 2 types of aviation fuel?

A

Aviation gasoline and turbine fuel.

32
Q

What is aviation gasoline graded by?

A

Octane number.

33
Q

What the does the octane number indicate?

A

The higher number the better the ability to resist knocking.

34
Q

What is knocking?

A

One or more pockets of air/fuel mixture explode outside of envelope of normal combustion front.

35
Q

What is the result of knocking?

A

Dramatic increase of cylindrical pressure and metallic pinging sound.

36
Q

What are the grades of fuel coloured?

A

80- Red
100- Green
100LL (low lead)- Blue

37
Q

What are the 3 turbine engine fuels?

A

Jet A -freeze point -40 Celsius
Jet A-1 - freeze point -47 celsius
Jet B- -freeze point -50 Celsius

38
Q

What colour are all turbine fuels?

A

Colourless or light straw colour.

39
Q

What must turbine fuels never be used for?

A

Piston engine aircraft.

40
Q

What are the 2 types of fuelling?

A

Gravity over wing

Pressure

41
Q

What can the refuelling pressure reach?

A

50psi (1000 gallons per minute)

42
Q

What is the maximum defuelling pressure?

A

-11 psi

43
Q

Why is fuel from one aircraft not allowed to be put into another?

A

Avoid contamination such as water, microbiological growth or debris.

44
Q

What are the 5 ice and snow formations?

A 
Rime ice
Glaze ice
Hoar frost
Pack snow 
Debris ice
45
Q

What is the most dangerous for,anion of ice?

A

Glaze ice.

46
Q

What ice weighs a lot and can affect unequal loading on wings?

A

Glaze ice.

47
Q

What thickness of frost on the underside of the wing is permitted for take off?

A

Less than 3mm

48
Q

What is the freezing point for an 80/20 fluid/water mix?

A

-10 celsius.

49
Q

What is the freezing point for a 60/40 fluid/water mix?

A

-50 Celsius.

50
Q

What info must be included in the anti-icing code?

A

Type of fluid
Percentage of fluid to water
Time application began

51
Q

What is used to test hydraulic pressure to hydraulic systems?

A

Hydraulic test rig.

M7 Richard (16 decks)

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