Engineers are responsible for designing and building products. In an interview context, expect to be quizzed on your technical skills, and also evaluated for your ability to work as a part of a team to get things built. The specific questions you are asked will depend on what type of engineering position you are looking for. Try a specific engineering discipline, such as software engineer, electrical engineer, or mechanical engineer.
You have 2 jars and 50 black beads and 50 white beads. How many would you put of each color in each jar so that if a bead was randomly selected from both jars, you had the greatest chance they would match? You have to put all of the beads in the jars.
1 of either color in the first jar (100% chance to get that color), the rest in the 2nd jar (very close to a 50% chance to get a matching color).
If you fill each jar with half black and half white then you will have a 50/50 chance of drawing a match. If you put any more than half of a color in jar number 1, then you will increase your odds of drawing that color from jar 1, but since there will be a smaller number of those beads in jar 2, you will decrease the odds of drawing that color from jar 2. Therefore any configuration other than half of each color in each jar will result in less than 50/50 odds of drawing a match (like in the answer above).
As long as the ratio of black beads to white beads is 1:1 in both jars, it doesn't matter.