The first round was an aptitude test which consisted of Verbal ,Quant and Logical Reasoning sections.The test was similar to that of CAT but the difficulty level was on the lower side.The challenging part was that there was a time limit for every question.The time limit was 90 seconds for most of the questions and 60 seconds for some. So speed and accuracy were imperative for clearing this section.
First round of filtering was done on basis of aptitude test. The second round of filtering was done on basis of technical test.This test consisted of 30 questions with the time limit being 30 minutes.Luckily there was no time limit for every question. This test tested the basic technical knowledge of a person. Most of the questions were from 2nd year sylabbus.There were questions from EDC,DLD,DEVICE MODELLING(2,3 questions from MOSFETs). This section could be cleared if one is thorough with 2nd year electronics.
After two rounds of filtering, finally came the interview.The technical and HR interview was held together.There were two interviewers one from HR department and the other from sales department.When I went inside ,there was only 1 person -the one from sales department(who was to conduct technical interview).He introduced himself and asked me a few general questions to start with like my native place,my hobbies etc.. He was very jovial.He asked me to relax when I went I entered the interview room.He asked me around 6-7 technical questions which were very basic .Some of them are mentioned below:-
1.What is the difference between a microcontroller and a microprocessor?
2.Draw all the parts of microprocessor 8085(registers,buffers...)
3.Draw the circuit diagram of rectifiers I have studied(he gave a sheet to draw).
4.Draw the symbol of NPN transistor
5.What is SCR?
These are the questions I can remember .There were 2 more questions which I cannot recollect but were rather simple.
The interviewer seemed to be in a good mood that day .He kept sayinf 'good' as a token of appreciation whenenver I gave the right answer.In the end ,the HR interviewer came back and asked me if I had any questions to ask about the company.
The first two rounds were crictical so those who are aspiring to work in Siemens will have to start practising aptitude questions atleast 2 months prior to the test.I would recommend you to prepare for this in summer vacations.For the interview you just need to maintain composure and if you are lucky enough then the interviewer will himself make you feel relaxed.Always ask 2 -3 questions at the end of the interview .It would show your eagerness to join the company.