62 Shielded Metal Arc Welding Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website. Figure 11-7. Characteristics of welds made under various conditions. The conditions are accentuated to illustrate differences. A—Current, voltage, and speed normal. B—Current too low. C—Current too high. D—Arc too short. E—Arc too long. F—Speed too low. G—Speed too high. Lincoln Electric Co. Warning: Warning: Never attempt to observe the weld pool or arc without having your head shield in place. Common mistakes made when learning to weld are shown in Figure 11-7. Study them care- fully so you can identify mistakes in your welding. A B C D E F G