Latest Mechanical Engineering topics

Topic	Replies	Views	Activity
Describe how you approach material selection/design for a component where strength is critical, and how you would approach a different component where stiffness is critical? Mechanical Design apple , spacex	2	3774	May 28, 2022
Can you describe the two-shot injection molding process? Manufacturing & Consumer Product Design apple	2	3271	May 3, 2022
What's the difference between thermoset plastics and thermoplastics? Materials Science tesla , apple , materials	1	2994	April 25, 2022
A garden hose has stopped flow. There is constant static pressure and no water hammer. Why does the hose tear in the axial direction at the end of the hose? Mechanical Design spinlaunch , spacex	2	2491	April 24, 2022
Why does condensation form on the outside of cold glass on a hot day? General ME Questions zoox , thermodynamics	1	8384	August 5, 2020
Is it faster to cook pasta if you add it in before or after a pot of water starts boiling? Heat Transfer heat-transfer , synapse	2	4134	April 22, 2022
How do you interpolate the physical property of one unknown metal among metal sheets of known physical properties? Materials Science apple	1	1814	April 21, 2022
You have two pucks that are slid across a frictionless horizontal surface at the same initial speed, one puck passes over a large dip in the surface. Which one reaches the end of the track first? Free Body Diagrams	6	3429	April 10, 2022
What's the difference between a true stress-strain curve and a traditional stress-strain curve? Materials Science waymo , materials	1	4022	August 5, 2020
What are the advantages & disadvantages of different types of motors? General ME Questions mechatronics	2	6084	March 14, 2022
A disk with the hole in the middle is heated. Does the hole get bigger, smaller, or stay the same size? Heat Transfer apple	2	3846	March 27, 2022
Why is a manhole cover round? General ME Questions microsoft	1	2794	March 22, 2022
Why does plastic become brittle in cold temperature? Materials Science tesla	2	5995	March 10, 2022
A steel tube and a brass rod are concentrically located. their ends are fixed on both sides using rigid plates. One of these plates is fixed to the wall, the other is free. Heat is applied to the system, explain the stresses that develop in the system Cantilever Beams apple , materials	2	4702	March 10, 2022
What are the three different modes of heat transfer? Heat Transfer waymo , heat-transfer	1	8248	July 29, 2020
You put a glass of water on a record turntable and begin slowly increasing the speed. What happens first? Does the glass slide off or tip over, or does the water splash out? Free Body Diagrams apple , general , physics	1	8778	August 6, 2020
At what region of a stress-strain curve does strain hardening occur? What does strain hardening do? Materials Science general , cisco	1	8565	July 28, 2020
What DFMA considerations would you have when switching the material of a machined component from aluminum to steel? Manufacturing & Consumer Product Design	2	2355	March 8, 2022
If you have an enclosed room and I open the refrigerator, how will room temperature change? Heat Transfer thermodynamics , htc	1	2642	August 4, 2020
A refrigerator is in a room and you open the door. Will the room get colder or hotter? Heat Transfer	2	7751	February 15, 2022
How do you change the cross-section of a beam to minimize deflection? Cantilever Beams apple , tesla , facebook , spacex	1	3571	March 6, 2022
Describe a CPU heat sink geometry and why it has that geometry. What would you do to improve or decrease the heat transfer of a heat sink? Heat Transfer	1	2861	March 3, 2022
You're designing a product rated to last for 5 years. How would you validate the design in terms of testing for performance, durability, and reliability? Reliability & Mechanical Test mechanical-testing , zoox , apple , google	1	2527	February 21, 2022
Describe the stress-strain curve between brittle and flexible materials? Materials Science apple , tesla	1	10420	August 3, 2021
What are the key parameters to consider when selecting a fan for forced airflow? Mechanical Design heat-transfer	2	2067	February 17, 2022
How would you design a snap fit? Where are snap fits used most often? How much force does it usually take to insert a snap fit? Mechanical Design	1	1963	February 16, 2022
Name all the ways of actuating an object you can think of. What are the pros and cons of each? Mechanical Design	2	1809	February 15, 2022
You have a long slender vertical member with a compressive force on one end, what if the dominant failure mode? Mechanical Design	2	2197	February 15, 2022
When selecting a material what would you take into consideration more, tensile strength or yield strength? Materials Science	3	3062	November 29, 2021
There are three buckets with water, air, and gasoline. If you put a sensor in the buckets, what type of sensing technology would you use to tell them apart? Mechanical Design	1	1750	November 29, 2021