16. which of the following test is used to ch...

16. which of the following test is used to checked the external discontinuities of a weldment?\na. radiographic test\nb. ultrasonic test\nc. bend test\nd. visual test\n17. which electrode is required to be stored in their original factory sealed container or an acceptable storage oven.\na. e - 6011\nb. e - 7018\nc. e - 7024\nd. all of the above\n18. the designation\ e - 7028\denotes that the electrode could be used for:\na. all welding position\nb. overhead welding position\nc. vertical welding position\nd. flat and horizontal welding position\n19. which electrode flux covering is generally used when deep penetration is a requirement?\na. cellulose\nb. low hydrogen\nc. rutile\nd. acid\n20. a technique in welding used normally for vertical joints in which the electrode sweeps back and forth in a semi - circular motion.\na. wash welding\nb. layering\nc. weaving\nd. both a & c

Answer

# Answer: 16. D. Visual Test 17. D. All of the above 18. D. Flat and Horizontal welding position 19. A. Cellulose 20. C. Weaving # Brief Explanations: 16. Visual test checks external discontinuities directly. 17. E - 6011, E - 7018, E - 7024 need proper storage. 18. E - 7028 is for flat and horizontal positions. 19. Cellulose flux for deep penetration. 20. Weaving has semi - circular electrode motion for vertical joints.