Question 1 Why does arc welding generate intense heat?
Question 2 Briefly explain the difference between conductive and convective heat transfer. Provide a workplace example of each.
Question 3 Explain the reason for having a grounding wire on portable power tools.
Question 4 One tactic for reducing noise exposure is to set up a barrier between the source and the personnel. What are the characteristics of an effective barrier?
Question 5 Imagine that you coach a track team. You have three athletes who compete in the shot put event. All three have good technique and achieve similar trajectory angles. One can put the shot farther than the others. Using the concepts of energy, work, and power, explain why he can outperform the others.