Study for the Gas Metal Arc Welding Exam, including GMAW, FCAW, and MCAW methods. Use flashcards and multiple choice questions with hints and explanations for effective learning. Get ready for your welding certification!

Multiple Choice

The root gap for a CWB 2G weld is 8 mm. Which inch value is equivalent?

Converting metric to inches uses 1 inch equals 25.4 mm. So 8 mm is 8 / 25.4 ≈ 0.315 inches. Among the given options, 5/16 inch is 0.3125 inches, which is the closest to 0.315. The other fractions are 1/4 (0.25), 3/16 (0.1875), and 7/32 (0.21875), which are farther away. Therefore, 8 mm is best represented as about 5/16 inch in welding practice.

Converting metric to inches uses 1 inch equals 25.4 mm. So 8 mm is 8 / 25.4 ≈ 0.315 inches. Among the given options, 5/16 inch is 0.3125 inches, which is the closest to 0.315. The other fractions are 1/4 (0.25), 3/16 (0.1875), and 7/32 (0.21875), which are farther away. Therefore, 8 mm is best represented as about 5/16 inch in welding practice.