Fluid Lines/Fittings
What are the 4 types of material tubing is composed of?
Copper, Aluminum, Steel , or Titanium
What does NDI stand for?
Nondestructive Inspection
How many factors affect corrosion?
11
How is tubing size determined?
Outer diameter
What is the first step in all NDI process's?
Cleaning the item to be inspected
What are the indications of a failed water-break test on a metallic surface prior to painting?
water beading or incomplete wetting
How much longer should a new rigid line be cut to provide for minor variations in bending?
10%
Flexible hose should be supported at least every _____ inches?
24
What is the oldest form of NDI?
Visual inspection
What type of corrosion resembles a worm like track?
Flilform
What measuring device is comprised of a frame, barrel, and anvil?
Micrometer
Can ultrasonic inspection be used for leak detection?
Yes
What are lay lines used for?
determine twists, and tubing identification
What type of defects are detected using the liquid penetrant inspection?
cracks or pores
What is the blended dish-out ratio for depressions in metal?
20:1, length to depth
MS fittings are primarily designed for what type of pressure?
High pressure, 3000psi or more
How much slack should be provided when installing a flexible hose?
5 to 8% of total length
What NDI method uses a low frequency and one of the following : spot, ring, or sliding probe ?
Eddy current
what are the 2 general classifications of corrosion?
direct chemical and electrochemical
You need to torque a bolt that is hard to reach, and you decide to use a 4” extension with your 16” torque wrench. What should you set the dial on your torque wrench to so that you can properly torque the bolt to 75 inlbs?
Tw = 60
What can be used to clean spilled battery acid(lead-acid batteries)?
Solution of 6oz. baking soda per gallon of fresh water