Read pages 34 – 35 of the Industrial Technology Handbook and then do the quiz.
Click for the Handbook
https://mrfrancis123.files.wordpress.com/2019/09/industrial-technology-core-handbook.pdf
Click to do the quiz https://docs.google.com/forms/d/e/1FAIpQLSerWSQNmUkH7LRpka4MArHckN32hYZzQduw7nQcekdeNAEN9Q/viewform?usp=sf_link
Metal Work Plus 