The three different types of power sources are generator, _________ and _________. 

 DCEP describes the flow of welding current as coming from the work lead and moving towards the electrode holder. 

 A vertical groove weld cannot be welded with which of the following electrodes? 

 When sizing weld cables, the larger the gage number, the smaller the cable diameter size.

 At what temperature does electrical energy convert to heat intense enough to melt, intermix and fuse metal? 

Understanding [BLANK-1] motivation can boost persistence even when tasks are challenging.

Answer this question by speaking out loud, just like you did in question 2.  The directions are the same. Read the following question.  Instead of writing down the answer to the question, speak out loud while looking at the camera.  Your answer should begin within 15 seconds.  Do not look away from the screen while answering.  When you are finished with your answer, then move to the next question. There is no need to type anything into the text box. What is the difference between a sign and a symptom?  Provide one example to illustrate the difference between the two.  

Mixed venous oxygen saturation is normally:

Which equation calculates cardiac output?

Which value best estimates right ventricular preload?