The Boring Company Mechanical Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 58 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at The Boring Company.
The Boring Company
Mechanical Engineer Intern
Intern Average Neutral experience Accept offer 3 rounds
Interview process
Recruiter call Technical screen
Interview formats
Technical Behavioral
It was one short call with the recruiter to start, then I had two technical interviews. They weren't too intense, mainly focusing on core engineering concepts and how I'd approach problems. There was some hydrodynamics involved. If I didn't know something, I'd talk through my thinking, and that seemed to work out.
Confirmed questions5 questions
- Can you explain basic hydrodynamics principles?
- How would you solve this simple piston-cylinder problem?
- Can you tackle this more complex hydrodynamics question?
The Boring Company
Mechanical Engineer
Mid Difficult Neutral experience No offer 4 rounds
Interview process
Recruiter call Technical screen Panel Panel
Interview formats
Behavioral Technical Technical Technical
the interview process is quite lengthy, involving 4 rounds starting with a screening call that you'll get notified about via email. You'll have to get ready for all the technical questions as well as behavioral ones. There are also couple of panel interviews that last for at least 2 hours.
Confirmed questions2 questions
- Can you explain the basics of motor function?
- How would you approach these mechanical calculations?
The Boring Company
Mechanical Engineer
Mid Difficult Positive experience No offer 3 rounds
Interview process
Recruiter call Phone screen Technical screen
Interview formats
Behavioral Technical
I had a 20-minute phone screen first, then two 45-60 minute phone interviews with an Engineer and a Manager. We started by talking about my interest in the company and my past project experience. Then there were a lot of technical questions. You should be ready for hypothetical questions about your projects and have a strong grasp of physics, statics, solids, and materials. The scheduling was a bit messy with cancellations, but they got back to me really fast after each interview. Overall, it was a good experience.
Confirmed questions1 question
- If you spin a lazy susan with a glass of water in the middle, what will happen to the water as measured radially from the center?
The Boring Company Mechanical Engineer Interview Questions
Quoted word for word from The Boring Company interview reports.
“What is the output rpm if a motor running at 100rpm drives a 1:7 gear ratio?”
Read reports →“Regarding motors and gearboxes: If a motor spins at 100 RPM and has a 1:10 gear ratio, what will the resulting RPM be?”
Read reports →“Regarding strength by weight, which has more: a circular cross-section with thickness or an I beam?”
Read reports →“For a composite rod (steel outer, aluminum inner) fixed at one end with a mass 'm' placed on top, what is the ratio of mass distribution between the steel and aluminum components?”
Read reports →“Given a steel rod and an aluminum rod, both fixed and subjected to the same heat increase, which rod expands more and why?”
Read report →“What would be the torque of the second gear given an input torque of 1000 lb-ft on the first gear?”
Read report →“Regarding materials of the same shape, which one requires more force for elastic deformation?”
Read report →“How would a power of 400 HP in one gear impact the gear train?”
Read report →“Regarding motors and gearboxes: If the horsepower is 100, what would the output be?”
Read report →Formats, difficulty and experience
Across all 58 The Boring Company interview reports.