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Quality Engineering Interview Questions

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Quality Engineer at W.L. Gore was asked...

Apr 14, 2010
 You are designing a diving board and it bends too easily. What design changes would you make to fix the problem? 2 AnswersIncrease the thickness. Within the deflection equation is a moment of inertia term. Within this inertia term are the cross sectional dimensions. this term is dominated by the thickness term since it is raised to the cube. Thus, the width of the beam is coupled by the cubic power to the overall deflection.Adding ribs below the board will increase the moment of inertia and stiffen up the board. Just increasing thickness will consume more material and make the board heavier.

Quality Engineer at NetApp was asked...

Feb 17, 2011
 Using a normal justice scale (google for image), what's the minimum number of weighings required to find the heaviest of 9 different balls?2 AnswersMinimum number of weighings is 2: 1.> Put 3 balls in each side of the scale and leave 3 balls on the table in front of you. If either side of the scale tilts to the heavier side then get rid of the other 6 balls and go to step 3. 2.> If both sides of the scale balance equally then you may eliminate that set of 6 balls and focus on the 3 left on the table. 3.> at this point you are down to 3 balls, either the set on the table or the ones that balanced heaviest in the first weighing. Repeat the procedure with the 3 balls. Place one ball each on either side of the scale and one on the table. Either the scale will balance leaving the heaviest ball on the table or the scale will not be balanced and you will have determined the heaviest ball there.That solution would work if all the balls weighed the same except for one. Maybe it was mis-worded, but the original question said 9 "different" balls.

Quality Engineer at SpaceX was asked...

Oct 28, 2010
 They want extensive information for how you performed on your past jobs3 AnswersAn offer was never extended to you and you were not qualified for the position.What does it take to be qualified to be a quality engineer...Having 20 years plus experience in an aerospace industry and certified as an ASQ CQE was not enough to qualify. I was not unhappy in the least that an offer was not extended.

Software Quality Engineer at MicroStrategy was asked...

Apr 12, 2013
 A very hard brain teaser that requires creativity. You don't necessarily have to get the right answer, but you have to come up with some intelligent ways of tackling the problem. Don't be afraid to talk about your thought process, even if it's not right. 2 AnswersCan you provide some details in the brain teasers? Like what is it or how hard is the brain beasers level? And if it is possible, can you more specifically say something about the procedure when you interview? That would be great. Thanks a lot.Hey can you please elaborate as to the kind of questions you faced? Would greatly appreciate it. Thanks!

Quality Engineer at Astronics was asked...

Oct 1, 2010
 What is my personality type and what kind of people do I find difficult to work with?2 AnswersI found this inappropriate. I felt they were phishing for information to see if I would say something negative. My answer was I get along with everyone?This is a common trick question with no 'correct' answer, just like the "what is your greatest flaw" question... The most reliable approach to answering a question like this is to illustrate how you always try to reach a middle ground with people. You divide and compromise rather then enter into a power-struggle with your co-workers.

Quality Assurance Engineer I at SumTotal was asked...

May 7, 2013
 3 person in a room, try to figure out a way to find out their average salaries without knowing others' salaries. 3 AnswersUse three random numbers during the adding process and subtract them in the same manner to get the total numberJust go ask HR.You can't "just ask HR," because salary information is confidential. The only way you're supposed to know is if the person agrees to reveal that information to you.

Quality Engineer at Caterpillar was asked...

Apr 9, 2015
 If someone is being unsafe what would you do?1 AnswerTalk to the person and let them know that what they are doing is unsafe and thank them for listening.

Quality Engineer, Powertrain at Polaris Industries was asked...

Oct 6, 2015
 Tell us about a difficult situation you had to deal with.1 AnswerI responded with a very specific example of a time when severe weather was causing damage to equipment at a previous employer. I described my actions and the successful outcome.

Quality Assurance Engineer at IBM was asked...

Nov 19, 2011
 Describe a project I had in school and what were my roles in the group1 AnswerThis was to get a feel of my previous responsibilities in groups.

Quality Assurance Engineer at IBM was asked...

Nov 19, 2011
 Did I ever have to deal with the changing of plans during a project?1 AnswerThis was to check how flexible I am.
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