Test Engineer Intern
Posted Sep 8, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
You'd update documentation in the quality system, and the posting says training will be provided. How do you write a procedure someone else can follow?
What they are checking: Whether they write procedures clear enough for someone else to follow, because quality system documents only work when others can use them.
The stated goal of this program is developing future engineers for the company. What do you want to be able to do by the end of the summer?
What they are checking: Whether they have a concrete development goal, because the program exists to grow future engineers and wants interns who know what to learn.
What would you do
A stand fails startup control and the troubleshooting guide does not cover what you are seeing. What do you do?
What they are checking: Whether they work methodically and ask for help when the guide runs out, because guessing on test equipment can damage parts or people.
A test result looks wrong but the stand says it passed. How do you work out which to believe?
What they are checking: Whether they question the test system itself when results look wrong, because a stand can pass bad parts if its readings drift.
About the work
This internship works on hydraulic test stands in Vernon Hills, troubleshooting and repairing circuits and tooling across the plant. What hands-on troubleshooting have you done?
What they are checking: Whether they have actually fixed real equipment, because this internship involves troubleshooting and repairing test stands and tooling across the plant.
The posting names reviewing hydraulic, electrical and pneumatic schematics to troubleshoot test setups. Walk me through how you read a schematic you have not seen before.
What they are checking: Whether they can read hydraulic, electrical and pneumatic schematics methodically, because that skill drives almost every troubleshooting task in this role.
You'd calibrate pressure transducers, flow meter displays, heat and current sensors. Why does calibration matter to what the test tells you?
What they are checking: Whether they understand that calibration is what makes test data trustworthy, because pass or fail decisions rest on accurate sensors.
The posting names gauge repeatability and reproducibility studies for qualifying stands. What does a repeatability study actually tell you about a measurement?
What they are checking: Whether they know repeatability shows if the same operator and gauge get consistent readings, which decides if the stand can be trusted.
The posting asks for knowledge of programmable logic controller programming and says fluid power knowledge is a plus. Where do you stand on each?
What they are checking: Whether they are honest about their PLC and fluid power knowledge, because the work relies on both and gaps show quickly.
The posting requires commitment to an engineering undergraduate program and a minimum 3.0 grade point average. Where are you in your program?
What they are checking: Whether they are enrolled in an engineering degree and meet the grade minimum, because both are firm requirements for this internship.
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As published by Bosch.