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FAA AMA Welding

Welding

QuestionAnswer
What method of repair is recommended for a steel tube longeron dented at the clusters? Welded patch plate
when welding or cutting, the acetylene pressure guage should never be set higher than 15 PSI
which statement concerning a welding process is true? the iner-arc welding process uses an inert gas to protect the weld zone from the atmosphere
cylinders used to transport and store acetylene contain acetone
why should a carburizing flame be avoided when welding steel? it hardens the surface.
when selecting a welding rod, one if the most important factors to consider is to ensure that the proper AMS number is used.
a welding torch backfire may be caused by a loose tip
which statement best describes magnesium welding? filler rod should be the same composition as the base metal
engine mount members should preferably be repaired by using a larger diameter tube with fishmout and rosetter welds.
why are aluminum plates 1/4 inch or more thick usually preheated before welding? reduces internal stresses and assures more complete penetration
the oxyacetylene flame used for aluminum welding should be neutral and soft
acetylene at a line pressure above 15 PSI is dangerously unstable
in Gas Tungsten Arc (GTA) welding, a stream of inert gas is used to prevent the formation of oxides in the puddle
if too much acetylene is used in the welding of stainless steel, the metal will absorb carbon and lose its resistance to corrosion
which of the following can normally be welded without adversly affecting strenght? SAE 4130 Chrome/molybdenum tubing
which statement best describes magnesium welding? it can be welded succesfully using the same type of joints that are used for aluminum
A very thin and pointed tip on a soldering copper is undesirable because it will cool too rapidly
what purpose does flux serve in welding aluminm minimizes or prevents oxidation
oxygen and acetylene cylinders are made of steel
why is it necessary to use flux in all silver soldering operations? to chemically clean the base metal of oxide film
edge notching is generally recommended in butt welding above a certain thickness of aluminum because it aids in getting full penetration of the metal and prevents local distortion
the shielding gasses generally used in the Gas Tungsten Arc (GTA) welding process consist of helium or argon, or a mixture of both
how should a welding torch flame be adjusted to weld stainless steel? slightly carburizing
oxides form very rapidly when alloys or metals are hot. It is important, therefore, when welding aluminum to use flux
in selecting a torch tip size to use in welding, the size of the tip opening determines the amount of heat applied to the work
the oxyacetylene flame for silver soldering should be neutral
filing or grinding a weld bead is considered to be a way to bring about the strenght reduction in the joint. (bad)
which statement is true in regard to welding heat-treated magnesium the welded section does not have the strenght of the original metal.
welding over brazed or soldered joints is not permitted
a resurfaced soldering iron cannot be used effectively until after the working face has been tinned
annealing of aluminum removes stresses caused by forming.
which statement concerning soldering is correct? joints in electric wire to be soldered should be mechnically secure prior to soldering
in gas welding, the amount of heat applied to the material being welded is controlled by the size of the tip opening
the most important consideration(s) when selecting welding rod is Material compatibility
when a butt-weld joint is visually inspected for penetration, the penetration should be 100 percent the thickness of the base metal
where should the flux be applied when oxyacetylene welding aluminum painted on the surface to be welded and applied to the welding rod.
high pressure cylinders used to transport and store acetylene must contain acetone
Created by: cordon.gabriel
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