SLB Field Engineer I interview questions

1st round interview included short technical question, and telling about myself and the projects I worked on. Not difficult/or hard, but just need to explain well enough to tell the logic process

The interview process was quite difficult extending over 2 days, more than 10 hours. You will get tests from mathematics, physics and psychology. You had to work also in teams building stuff, to see how you manage working in teams. They assess even how you prioritise food, when they order some.