CWB Module 16 rev 1 questions well answered rated A+ 2023/2024

CWB Module 16 rev 1To ensure that calipers are accurate you would a) use a vernier b) calibrate them c) always take a reading to three decimal places - correct answer b) calibrate them A high quality measuring instrument. . a) should not be calibrated unless something goes wrong b) should be calibrated by the operator every time it is used c) should be calibrated regularly as specified in a formal calibration program - correct answer c) should be calibrated regulary as specified in a formal calibration program True or False? "When reading a meter with a pointer always stand directly in front to avoid a parallax error." - correct answer True State one reason for measuring dimensions from a single reference line or datum - correct answer To avoid cumulative errors When making accurate measurements with a long steel tape it is important that the tape. a) be held loose so it does not stretch b) be held under the correct tension applied with a tension handle c) be held as tight as possible so there is no slack - correct answer b) be held under the correct tension applied with a tension handle What are two ways of checking if a surface is vertical? - correct answer Use a plumb bob or a spirit level How would you check that a flange is at right angles to the web if a try square could not contact the flange because of the fillet weld? - correct answer Measure with a rule from the flange to the try square at two points. the two reading should be the same True or False? "When using a string as a reference line to measure distortion in a plate always make the measurements horizontally from the string to the plate." - correct answer True What instrument(s) would you use for checking the angle of a weld preparation? - correct answer Bevel gauge and/or protractor According to CSA W59 what is the minimum distance from the weld at which to measure the preheat in plates 44mm thick? a) 75mm b) 44mm c) no minimum - correct answer a) 75mm A 'pipe' is a solidification cavity in steel. Where would you most likely find such a defect when inspecting a rolled plate? a) on the plate suriace b) in the middle of an end section c) large pores throughout the plate thickness - correct answer b) in the middle of an end section True or False? "According to CSA W59 occasional notches on a flame cut surface may be removed by grinding or machining if less than 5mm deep". - correct answer True For two 38mm thick plates to be groove welded without a backing bar what is the maximum misalignment permitted by CSA W59? - correct answer 3mm Why is the preparation of a partial joint preparation groove weld particularly important? - correct answer The depth of preparation determines the weld size