MOD #9 - WELDING INSPECTION PRACTICE TEST QUESTIONS AND ANSWERS.

Groove welds on pipe and tube can be positioned in the 1G. 2G, 3G _____ and _______ 5G & 6G An elongated hole made on one overlapping member is the preparation required for a ________ weld. Slot 6 Ways to Show Appreciation for Your Child's Teacher 0:01 / 0:54 Surfacing welds can be used to (3): 1. Build up a worn part 2. Create a wear resistant surface 3. Create a corrosion resistant surface The point of connection between 2 work places being welded Joint Root The outermost surface of a weld Weld face The dimension that determines the actual strength of a fillet weld: Throat ________ fillet welds measure smaller than the leg dimensions would indicate Concave A groove melted alongside the toe of a weld Undercut A section of a groove weld face that measures less than 1/32" would be considered: Underfill The discontinuity is only considered serious if it is larger than 1/8" or the sum exceeds 1/4" per inch of weld Porosity The discontinuity is often caused by making a weld with too long an arc Undercut Improperly ending a weld can cause: Cracks Cracks Improper cleaning between passes when using SMAW or FCAW can lead to: Slag inclusions A material defect that often is discovered after a weld is made Laminations The discontinuity that is common when welding with GMAW short arc Incomplete fusion Increasing the carbon content or the carbon equivalent in steels makes welds: More likely to crack The area on either side of a weld that has the crystalline structure change y the heat cycle Heat affected zone Undercut is an example of a: Linear Discontinuity Water or cutting fluid on the work piece before welding can lead to: Porosity Tungsten inclusions are most common when: GTAW Aluminum Under-bead cracks are normally caused by (3): 1. A heat affected zone due to too much heat input 2. Improper pre-heating of thick material 3. Improper pre-heating of high carbon steels Slag inclusions are most common with which processes (2) SMAW FCAW Starting the arc outside the groove or weld path causes: Arc strikes