M7.17 Flashcards

1
Q

How is an aircraft towed on soft ground?

A

By a towing bridle on the main wheels and steered by a towing arm

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2
Q

What direction should nose wheel aircraft be towed on soft ground?

A

Forward or backwards

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3
Q

What speed is allowed for an aircraft being towed with doors open?

A

10km/h

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4
Q

Where would a auxiliary jack be placed?

A

On each side of the centre fuselage

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5
Q

What are the four types of jacks?

A
  • bottle jack
  • bipod jack (3 legs, like a quad but with one removed)
  • tripod jack
  • quadrapod jack
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6
Q

Where should jacking take place?

A

In a hangar out of wind (if in wind then point aircraft into the wind)

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7
Q

What is knocking?

A

When combustion of air/fuel mixture goes wrong which causes high pressure

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8
Q

What are the different grades of aviation fuels?

A

80-red
100-green
100LL(low lead)-blue

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9
Q

Can turbine engines operate on aviation fuel?

A

Yes but for limited time and decreases effiency

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10
Q

What must you never do with turbine fuels?

A

Put it into piston engines

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11
Q

What pressure do you refuel at?

A

As high as 50psi (1000 gallons a minute)

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12
Q

What pressure do you refuel at?

A

11psi

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13
Q

What is meant by cold-soak?

A

When the aircraft is parked outside in temperatures lower than freezing with no power supply

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14
Q

What are the different types of ice and snow formation?

A
  • hoar frost
  • rime ice
  • glaze ice
  • debris ice
  • pack snow
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15
Q

What is the most dangerous type of ice?

A

Glaze ice

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16
Q

What are the two types of de-icing and anti-icing?

A

One step- one liquid does both

Two step- de-ice and then anti-ice

17
Q

What percentage of a type 1 fluid is a glycol?

A

80%

18
Q

What percentage of type 2 and 4 fluids is a glycol?

A

50%

19
Q

What type of fluid has the shortest holdover time?

A

Type 1

20
Q

What is holdover time?

A

The estimated time that the applied anti-icing will work

21
Q

On an AC power supply what do the 6 pins indicate?

A
  • 3 for the three phases
  • 2 for DC supply
  • 1 for ground/earth