Sem 1 Review

Test Description: Test 1

Instructions: Answer all questions to get your test result.

1) provides an extra boost of current to help establish an arc when using electrodes that are hard to start

2) is the amount of electron flow through an electrical circuit

3) Torch technique is determined by metal ____ or by depth of bevel

4) The correct diameter filler metal is approximately _________ the thickness of the base metal

5) ________ changes AC current from one level to another

6) When welding with DCEP, electron flow from the _______ to the _______

7) is used to remove slag after the weld is deposited

8) determines whether current flows into the workpieces or toward the electrode in a DC circuit

9) is caused by insufficient gas flow to the welding torch

10) When backhand welding, the torch angle is approximately ____° above the plate

11) The four basic welding positions are

12) The cylinder valve is cracked to remove debris (dust, chips) lodged in the outlet nozzle

13) has a very distinctive, nauseating odor

14) is caused by the flame going out suddenly on the torch

15) a check valve/flash arrestor allows the flow of liquid or gas in one direction only

16) The ______ welding process does not use shielding gas to protect the weld area. In this automated process, the electrode, arc, and weld pool are submerged in a granular flux that is poured on the base metal.

17) _____ arc welding consists of a spool of hollow wire filled with flux that is fed through the gun. This process does not require external shielding gas. It is commonly used to weld carbon, low-alloy and stainless steels, and cast iron.


*select an answer for all questions

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