FREE AND STUDY GAMES ABOUT WELDING EXAM

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FREE AND STUDY GAMES ABOUT WELDING EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -21 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Which statement best describes magnesium welding?

Answer:

Filler rod should be the same composition as base metal.

Question 2: Why is it necessary to use flux in all silver soldering operations?

Answer:

To chemically clean the base metal of oxide film.Question 3: Edge notching is generally recommended in butt welding above a certain thickness of aluminum because it

Answer:

aids in getting full penetration of the metal and prevents local distortion Question 4: A resurfaced soldering iron cannot be used effectively until after the working face has been

Answer:

tinned

Question 5: A very thin and pointed tip on a soldering copper is undesirable because it will

Answer:

cool to rapidly Question 6: Which of the following can normally be welded without adversely affecting strength?

Answer:

SAE 4130 chrome/molybdenum tubing.

Question 7: Which statement best describes magnesium welding?

Answer:

It can be welded successfully using the same type of joints that are used for aluminum.

Question 8: If too much acetylene is used in the welding of stainless steel,

Answer:

the metal will absorb carbon and lose its resistance to corrosion.

Question 9: Why should a carburizing flame be avoided when welding steel?

Answer:

it hardens the surface

Question 10: High pressure cylinders used to transport and store acetylene must

Answer:

contain acetone

Question 11: The oxyacetylene flame used for aluminum welding should

Answer:

be neutral and soft Question 12: Where should the flux be applied when oxyacetylene welding aluminum?

Answer:

Painted on the surface to be welded and applied to the welding rod.

Question 13: Oxides form very rapidly when alloys or metals are hot. It is important, therefore, when welding aluminum to use a

Answer:

flux

Question 14: Oxygen and acetylene cylinders are made of

Answer:

steel Question 15: How should a welding torch flame be adjusted to weld stainless steel?

Answer:

Slightly carburizing Question 16: In selecting a torch tip size to use in welding, the size of the tip opening determines the

Answer:

amount of heat applied to the work

Question 17: Which statement concerning a welding process is true?

Answer:

The inert-arc welding process uses an inert gas to protect the weld zone from the atmosphere.Question 18: When welding or cutting, the acetylene pressure gauge should never be set higher than`

Answer:

15 psi

Question 19: Engine mount members should preferably be repaired by using a

Answer:

larger diameter tube with fishmouth and rosette welds.

Question 20: Annealing of aluminum

Answer:

removes stresses caused by forming

Question 21: A welding torch backfire may be caused by

Answer:

a loose tip