Jul 6
Jul 5
How it Works: Sieve Analysis (Gradation Testing)
What Is A Sieve Analysis? Sieve analysis, or gradation testing, is a method used to determine the particle size distribution of granular materials, such as crushed rock, sand, clay, granite, etc. Sieve analysis is used in civil engineering because the distribution of... Read more
Jun 28
What is an Arc Flash Analysis?
An arc flash is the rapid release of energy produced from an unintended fault (short circuit) in an electrical system. Huge currents form during an electrical arc fault and can cause copper and other metals to vaporize, resulting in an explosion! An arc flash analysis... Read more
Jun 21
Case Study: N95 Mask Machine Modification
Case Summary: A doctor’s office purchased a Chinese-manufactured machine to make N95 masks with bands to go around the head. The unit was designed so that the operator could switch the configuration to around-the-ear bands, but this feature was not working. Purpose... Read more
Jun 14