"I have a compressor rated at 200. How do I tie it into which sections? You have to have a lot of math and science training to figure out those kinds of engineering questions." South High School juniors Terri Guinto and Noor Saba nodded their heads in mild amazement as they listened to Occidental of Elk Hills, Inc. Engineer Kimberly Thomas. Thomas was one of dozens of professional experts who assisted 335 Kern County high school students seeking career information on Feb. 23, Engineering Day at the Kern County Museum. "You may have a great system already in place," Thomas continued, "But you are constantly making it better by doing research. That's why I love being an engineer."