Siemens came to our college and conducted online test for internship for M Tech ( CAD / CAM ). Procedure.. Round 1 -- Online test. ( General aptitude questions 20 marks, C language 15 marks, C++ 15 marks ) It was easy..!! Round 2 -- Telephonic Interview. ( Basic questions like.... tell me something about you, Some basic question about C/C++. Some basic aptitude question. Like, Question related Work and Time problem.) No reply yet..!! Round 3 -- Personal interview.