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Mod 6 > 6.10 > Flashcards

6.10 Flashcards

1
Q

What are steel wires twisted into?

A

Strands

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2
Q

What are strands twisted into?

A

Cables

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3
Q

What direction are wires and strands twisted in?

A

The opposite to each other

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4
Q

If a cable is said to be 7x19 what does this mean?

A

The cable is made up of 7 strands of 19 wires each

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5
Q

What is a tensiometer?

A

A device used to measure the tension of cables

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6
Q

How are metal cable terminals attached to the end of cables?

A

They’re swayed on by plastic deformation of their hollow shanks

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7
Q

What are fairleads used for?

A

To guide control cables to prevent damage to aircraft structure

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8
Q

What is used when control cables pass through a pressure bulkhead?

A

Pressure seals

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9
Q

When are pulleys used on control cables?

A

When a change of direction is required

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10
Q

What are cable turnbuckles used for?

A

To make minor adjustments in cable length and tension

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11
Q

How can you identify which cable is a left hand thread on a turnbuckle?

A

It will have a groove or knurl around the end of the barrel

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12
Q

What is special about the teleflex control cable?

A

It can push and pull

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13
Q

What is a single entry unit in relation to an end fitting?

A

It’s when a teleflex cable finish’s in a unit that turns it into rotational movement

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14
Q

What is the minimum engagement for a single entry unit?

A

40°

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15
Q

What is a double entry unit?

A

When a teleflex cable needs too turn 90-180°

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16
Q

What does a anti-torsion tube do?

A

It stop teleflex cable rotating

17
Q

What is a straight lead unit?

A

When the teleflex cable carries on its route but a gear wheel is needed for something

18
Q

What is a junction box unit?

A

When two teleflex cables enter the same unit to run off the same gear wheel

19
Q

What are swivel joints?

A

A unit that holds the end of a control cable but can freely rotate

20
Q

Why are quick break units installed?

A

To be able remove components without disturbing the control

21
Q

What makes the Bowden control cable different to the teleflex cables?

A

Bowden cables can only pull and are pushed back by springs

22
Q

What are the four parts to a Bowden control cable?

A
  • coiled wire
  • cotton braiding
  • waterproofing
  • end caps
23
Q

What is a Bowden junction box used for?

A

When you want to connect a single cable to two cables

24
Q

If Bowden control cables are longer than 2ft how often should they be supported?

A

Every 12in

Mod 6 (17 decks)

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