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CWB Module 10 Questions and Answers Already Passed
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CWB Module 10 Questions and Answers Already Passed
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CWB Module 10 Questions andAnswers Already Passed
Working with CSA Standard Z662 a groove angle specified on a drawing as 60 degrees is required to be
between
(a) 60 - 65 degree
(b) 55 - 70 degree
(c) 55 - 60 degree
(d) 60 - 80 degree ✔✔(d) 60 - 80 degree
CSA Z662 requires that abutting ends be aligned, the maximum allowable offset as specified for
components with the same nominal wall thickness at the bevel is
(a) 2 mm
(b) 1.6 mm
(c) 1 inch
(d) 1/2 inch ✔✔(b) 1.6 mm
Depending on the condition of the shear blades and lubricants used, various foreign materials may be
entrapped leading to
(a) porosity and incomplete joint penetration
(b) insufficient effective throat thickness
(c) porosity, slag entrapment and incomplete fusion
(d) slag entrapment and incomplete fusion ✔✔(c) porosity, slag entrapment and incomplete fusion
, When oxygen is used in oxyfuel cutting, there is the potential for notches and irregularities to occur. Slag
may adhere to these notches and surfaces. If not removed prior to welding the following discontinuities
may occur
(a) slag entrapment and incomplete fusion
(b) porosity and incomplete joint penetration
(c) porosity, incomplete fusion, slag entrapment and chemical composition defects
(d) porosity and chemical defects ✔✔(c) porosity, incomplete fusion, slag entrapment and
chemical composition defects
When cutting high-strength quenched and tempered steel, a localized martensitic microstructure forms
along the edge of the cut surface from the localized heating and fast cooling associated with the cutting
process. It may be necessary to remove up to
(a) 5 mm of material by mechanical means to remove the hard, heat-affected zone
(b) 1 inch of material by mechanical means to remove the hard, heat-affected zone
(c) 1/2 inch of material by mechanical means to remove the hard, heat-affected zone
(d) 2 mm of material by mechanical means to remove the hard, heat-affected zone ✔✔(d) 2 mm
of material by mechanical means to remove the hard, heat-affected zone
According to CSA W59 and Z662, in preparation of material, surfaces and edges to be welded shall be
(a) clean
(b) smooth, uniform and free from fins, tears, cracks, and other defects
(c) clean and constant size
(d) smooth and clean ✔✔(b) smooth, uniform and free from fins, tears, cracks, and other defects
Surfaces to be welded shall be free from loose or thick scale, slag, rust, paint, grease, moisture, and
other foreign material within
(a) 12 mm (1/2 in)
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