Mechanical engineering intern Interview Questions


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Mechanical Engineering Intern was asked...May 4, 2010

You are in a boat in a pool with a rock in your hand. You throw the rock into the pool. Does the water level rise, drop, or stay the same?

13 Answers

If the rock were neutrally buoyant the water level would remain the same. It is heavier than water which causes it to displace more than its own volume while in the boat compared to at the bottom of the lake. Therefore the water level of the lake would go down. Less

These answers are troubling. The only correct answer so far is Ben. The water level goes down. Less

The weight of the boat plus you plus the rock has already displaced the height of the water. The only time the water level will change will be when the rock is mid air. Less

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Endeavor Energy Resources

What was a time you couldn't deliver on a project or assignment?

7 Answers

Such situation arose twice, and in both the cases I informed my seniors who helped me to complete the project / assignment. Less

I work 14 years for endeavor energy rust about Hand work for bill Turner

Get some work for Mr. Stevenson's house

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NASA Jet Propulsion Laboratory

If you tie a string around a bike pedal that is at the bottom of its rotation and pull backwards, will the bike move forwards or backwards?

5 Answers


This is a question NASA asks? This is like one of those fake genius tests from facebook. Less

Neither - the force from pulling only one bike pedal would cause the bike to keel over....before it even has a chance to move forward Less

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What would you do when your asked to do something that you don't like?

3 Answers


i would simple tell the person that i dont klike to do that

I would ask questions like; Personally or professionally, Legal and ethical, Does it harm others, Less


How would you determine how many pianos are in a given town. Problem solving, describing interest in company, interest in major, past projects worked on, work experience.

3 Answers

Try to get 30 sets of data: how many people own piano out of 100 Get the mean value and standard deviation base on dataset Answer: mean +/- 3*StDev It is just kinda of data analysis question... Less

Send out a flyer claiming free piano cleaning since most end up dusty anyway. You could get more info on the pianos as well using this method (model, usage, type, etc.) . Less

Just broadcast through the town that there is free update to all the pianos with new foot covers, won't cost much but will get the number, people like free staff. Less

Los Angeles Water and Power

How do you conduct analysis of a system/customer site to determine what kind of solutions can be implemented

3 Answers

First round Campus interview was back in November 2019. I applied for 2019 Fall Mechanical Engineering Associate 1 Campus interview. 2nd/final interview happened November 2020. The pandemic really stifled the interview process Less

Wow, that was crazy long wait. Anyway Congrats.

When did you had your first interview? Early 2020?

Innovative Engineering Systems

What was a time when you struggled

2 Answers

time when i was working some jobs but some equipment not supporting

When data are not complete yet.


How many yellow cars are there in Waterloo, Ontario?

2 Answers


Show your thought process and clearly voice any assumptions.


A ping pong ball falls in to a pipe with a close fit within a room. On a desk is a hammer and a box of Wheaties. You must remove the ball without damaging it or the pipe.

2 Answers

I suggested searching the room for tape or gum and attaching it to a string made from the Wheaties bag. Using that I hoped I could get the string stuck to the ball to remove it. Other answers could include: -leaving the room to get water so that you could float the ball out. -grinding the Wheaties into a fine powder and slowly pour it into the pipe, vibrating the pipe with a hammer so that the granular flow could be used to lift the ball out. Less

The question does not indicate the pipe is attached to anything, I would just turn the pipe upside down and let the ball fall out. Less

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