Caterpillar Associative Engineer interview questions

the interview process had 3 divisions first one was the online test that had aptitude ,verbal and reasoning also technical questions. then second round was GD my topic was Make In India.Third round was a technical round where there were questions on my area of interest and skill set.

Caterpillar interview questions Duration: 30 mins Hr: self intro Area of interest why electrical? Why AC and not DC? Technical: 1. As my project consisted a word bjt, he started with operation of BJT and When it will act as a current amplifier? 2. He asked me are you comfortable with LIC? I replied s but I didn't revise so I'll try Then he asked ideal charactersitics of opamp Slew rate Schmitt trigger 3.Then he asked since u mentioned c tools can I ask questions from that I told yes 4. How proficient are u in c? I'm not a hackerrank coder but I know to decode and basic stuff (He didn't ask any questions from that) 5. are you comfortable with power amplifiers? No obviously 6. Then from machines Difference between single phase Im and 3phase Im Electrical vehicle ( He told I don't force you if u know reply) Which is better ac or DC? 7. Difference between microprocessor and microcontroller Real world applications 8. Matlab 9. Pi,p,pid controller Hr: 1. Do you have any questions?