Engine mount members should preferably be repaired by using a

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Welding

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Question	Answer
High pressure cylinders used to transport and store acetylene must	contain acetone
Why should a carburizing flame be avoided when welding steel?	it hardens the surface
Engine mount members should preferably be repaired by using a	larger diameter tube with fishmouth and rosette welds.
Which of the following can normally be welded without adversely affecting strength?	SAE 4130 chrome/molybdenum tubing.
When welding or cutting, the acetylene pressure gauge should never be set higher than`	15 psi
A resurfaced soldering iron cannot be used effectively until after the working face has been	tinned
Where should the flux be applied when oxyacetylene welding aluminum?	Painted on the surface to be welded and applied to the welding rod.
Why is it necessary to use flux in all silver soldering operations?	To chemically clean the base metal of oxide film.
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
Which statement best describes magnesium welding?	Filler rod should be the same composition as base metal.
Oxides form very rapidly when alloys or metals are hot. It is important, therefore, when welding aluminum to use a	flux
Which statement concerning a welding process is true?	The inert-arc welding process uses an inert gas to protect the weld zone from the atmosphere.
Which statement best describes magnesium welding?	It can be welded successfully using the same type of joints that are used for aluminum.
Oxygen and acetylene cylinders are made of	steel
If too much acetylene is used in the welding of stainless steel,	the metal will absorb carbon and lose its resistance to corrosion.
Annealing of aluminum	removes stresses caused by forming
The oxyacetylene flame used for aluminum welding should	be neutral and soft
A very thin and pointed tip on a soldering copper is undesirable because it will	cool to rapidly
A welding torch backfire may be caused by	a loose tip
How should a welding torch flame be adjusted to weld stainless steel?	Slightly carburizing
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

Created by: mattpayne001

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