There is a refrigerator in a perfectly insulated room. The door is then opened. Is it an open or closed system? After a long time has passed, has the temperature in the room increased or decreased?
Product Design Interview Questions
13,785 product design interview questions shared by candidates
Show me the back of an iPhone and asked me how it might have been manufactured.
If I have a solid rod and hollow rod with the same mass and I let them slide in a ramp. Which one reaches the bottom first and why?
Many people cannot afford public transport. How would you solve this?
You have 5kg of Aluminum and 5kg of Steel. You can make whatever cross section beam you want with these materials. If you have to make a cantilever beam 1m long with a load at the end. And you want to minimize the deflection. What material would you use?
If you and a large brick are in a boat floating in a pool, will the water level rise or fall when the brick is tossed into the water? What if the brick is a large piece of Styrofoam and thrown into the water?
Brainteaser: 4 people have to cross a rope bridge at night. Only 2 can cross at a time and they only have 1 flashlight. The people cross at different speeds - 10 mins, 5 mins, 2 mins, 1 min - and they cross at the speed of the slowest person. What's the fastest way to get everyone across?
We have a cup of hot coffee and a small cold milk out of the fridge. The room temperature is in between these two. When should we add milk to coffee to get the coolest combination earliest ( at the beginning, in the middle, or at the end)?
If I need to make a cantilever beam 1mm thick and I only have 0.5mm sheet stock. How can I make a beam that has the same properties as the 1mm.
What are the different ways you can you tell if this part is steel or aluminium.
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