6.6

Question 1

High low medium pressures for rigid and flexible pipes and hoses

Answer 1

Rigid
- high = over 1500 PSI
- medium = less then 1500 PSI
- low = suction and return

Flexible
- low = 600psi
- medium = up to 3000psi
- high. = over 3000psi

Question 2

What increments are rigid pipes measured in

Answer 2

1/8 th increments

Question 3

What materials are rigid pipes made of for high, medium, and low pressures

Answer 3

High is either steel or titanium

Medium is aluminium

Low is aluminium

Question 4

What is the colour of the ident for fuel pipes

Answer 4

Red background
Star symbol

Question 5

What is the colour of the ident for breathing oxygen pipes

Answer 5

Green background
Squares symbol

Question 6

What colour is the ident for hydraulic pipes

Answer 6

Yellow and blue background
Circles as symbol

Question 7

Aircraft navy vs air corps for rigid pipe flare and one fittings

Answer 7

AN
- 37 degree flare
- thread run of / recess
- blue or black
- longer
- courser thread

AC
- 35 degree flare
- no thread run of / recess
- shorter
- grey / yellow
- finer thread

Question 8

‘Ball bush’ fittings

Answer 8

MS and Harrison

Question 9

Advantages + disadvantages of swaged fitting

Answer 9

Quick, in situ fitting, good seal

Can’t be removed once fitted