Ed's Flux Cored Weld Quiz.
[1] Welding vertical up with that flux cored wire and the weld is too fluid, what three things can you adjust?
Answers.
[2] Welding that single pass 1/4 (6 mm) horizontal fillet weld with an 0.045 E71T-1 wire and an automated carriage, what is the maximum "weld speed" you can attain?
Answer.
[3] Provide a common, optimum volt setting used to weld "vertical up" flux cored welds with an 0.045 1.2mm, or 0.052 1.4 mm E71T-1 wire?
Answer ______volts
[4] If you weld a ¼ (6 mm), horizontal fillet with that 0.045 E71T-1 wire, provide a wire feed setting and voltage setting for that weld.
Answer.
[5] Welding a 15 mm carbon steel plate. You are going to weld a "horizontal vee groove" first fill pass with an 0.045 E71T-1 wire, provide the approx. wire feed and voltage.
Answers.
[6] You set the correct flux core wire feed setting and you get globular, high spatter weld transfer, name two things you should check.
Answers.
[7] Why is the use of a flux cored wire for an open pipe root not recommended?Answer.
[8] Why be concerned with manual flux cored weld weaves wider than 12 mm?Answer.
[9] What effects will a long arc length have on a vertical up E71T-1 weld?
Answer.
[10] How you correct a long arc gap?
Answer.
[11] Welding horizontal stringer cap welds in an 18 mm vee groove, should you use fore hand or back hand?
Answer. Why?
[12] With an 18 mm, horizontal vee groove flux cored weld, what will be the two most common weld defects and where will most defects be located?
Answer:
[13] In manually welding fill passes in any narrow groove welds, which is the logical choice, stringers or a weave?Answer. Why?
[14] Why is a straight or slight back hand the preferred method for welding any root across a a vee groove joint with "ceramic" backing?Answer.
[15] You are ready to weld vertical up a fill pass on a pipe, 12 mm wall thickness, provide a wire feed and voltage start point for that 0.045 1.2 mm E71T-1 wire.
Answer.
[16] You feel that vertical up weld can take more heat, you increase what control and in what increment?
Answer. Why?
[17] You are about to weld the first fill pass in a 30 mm plate vee groove weld. Before welding the first fill pass, what can you do to compensate for the "long wire stick out" required?
Answer.
[18] Excess weld spatter means, Volts too ____ or the are Amps too _____
[19] Why is back hand preferred for that horizontal hot pass?
Answer.
[20] Provide a wire feed and volt setting for any pipe or plate, vertical up stringer cap pass using that 0.045 1.2mm E71T-1 wire.Answer
[21] Provide an optimum wire feed and voltage setting for an 0.052 1.4 mm E71T-1 wire, welding a 1/4 (6mm) fillet weld vertical up.
Answer.
[22] Name three things you can do to minimize flux cored weld porosity?
Answers.
[23] With the 0.045 wire and CO2, most vertical up and overhead welds will be,
[a] 120 to 200 amps
[b] 150 to 200
[c] 200 to 230
[d] 250 to 300 ampsAnswer
[24] Provide three things you can do to minimize slag entrapment in your weld?
Answer.
[25] Welding in the flat position why is it important not to use too high a wire feed rate in that easy to weld vee groove joint?
Answer.
[26] Welding a 5/16 (8 mm) horizontal fillet weld with that 0.045 1.2 mm E71T-1 wire, provide;
[a] The wire feed setting.
[b] The weld voltage.
[28] Why limit the single pass fillet weld size to 5/16?Answers.
[27] You are welding mostly flat and horizontal fillet welds with an 0.045 E71T-1 wire, the weld surface has pock marks, why is this wire not the first flux cored wire choice?
Answer. What wire should be used?
[28] You see the weld wire running into the weld, what weld parameter do you adjust?Answer.
[29] What does a vertical up flux cored filet have in common with an over head flux cored fillet?
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