Hardware FYI

Topic	Replies	Views	Activity
How do you change the cross-section of a beam to minimize deflection? Cantilever Beams apple , tesla , facebook , spacex	1	5317	March 6, 2022
What does open-drain & push-pull mean? Electrical Engineering gpio , analog-design	2	7719	January 31, 2023
How would you tolerance a touch screen assembly to the mounting chassis of a smart phone? Mechanical Design apple	5	5323	August 16, 2025
What are the advantages & disadvantages between a buck converter and a LDO? Electrical Engineering apple , power-electronics	2	7489	May 24, 2022
What are the different types of stress & force a material can endure? Mechanical Design	1	9070	August 3, 2021
What are the key components in a consumer electronic laptop? Mechanical Design general , apple	2	3965	October 3, 2020
Given a point-load at the end of a wall-mounted cantilever beam, what is the shear stress at the wall? Cantilever Beams amazon	4	5428	April 5, 2021
Additional Useful Resources Online Consumer Hardware Guide	0	2138	May 6, 2021
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	6569	April 22, 2022
Two cars are at the top of a hill. One car is just a simple wheel axle car (not power), one car has a spring suspension system. Which one will reach first? Free Body Diagrams spacex	3	5550	June 3, 2023
Your friend is coming over soon and you made them coffee. You want this coffee to be as hot as possible by the time they get to you. You can use creamer to affect the coffee, what should you do to make the coffee as hot as possible when they arrive? Heat Transfer synapse , heat-transfer	4	4761	October 30, 2024
How do the strength-to-weight ratio of aluminum vs. steel compare? Materials Science materials , tesla	1	7448	August 7, 2020
What's the working principle behind common analog sensors? (strain gauge, thermocouples, etc.) Aerospace Engineering	0	1752	December 23, 2023
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	5635	March 27, 2022
How do you test for waterproofing on consumer electronic products (smart phone, tablet, etc)? Mechanical Design apple	3	4805	August 28, 2023
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	5530	May 28, 2022
Basics of Compression Molding Consumer Hardware Guide plastics	1	6698	September 6, 2020
Two cylindrical tanks are full of water, where one is oriented horizontally and another vertically. If a hole is drilled in the bottom of the tank, which one empties first? General ME Questions general	1	3702	September 24, 2023
Take-Home Design Challenges Guide Consumer Hardware Guide	1	6535	December 8, 2023
Can you describe the two-shot injection molding process? Manufacturing & Consumer Product Design apple	2	5330	May 3, 2022
What's the difference between a true stress-strain curve and a traditional stress-strain curve? Materials Science waymo , materials	1	6469	August 5, 2020
If you had designed this rear cover, what are 5 tests that you would conduct on the completed iPod Touch assembly to ensure that your rear cover design met all applicable requirements? Why? Reliability & Mechanical Test apple	2	5003	February 15, 2022
What are design for manufacturability (DFM) considerations you would assess while designing an injection molded part? Manufacturing & Consumer Product Design manufacturing	1	3304	August 8, 2020
Can you draw the block diagram for an inverting operational amplifier and derive the gain equation? Electrical Engineering apple	2	4695	April 4, 2022
When selecting a material what would you take into consideration more, tensile strength or yield strength? Materials Science	3	4001	November 29, 2021
How can you reduce moisture absorption in nylon? Materials Science tesla , materials	1	5587	September 28, 2020
Barrel Connector Concentricity Mechanical Design apple	2	2435	July 14, 2025
Engineering Builds: EVT, DVT, PVT Consumer Hardware Guide	1	5255	October 12, 2023
A beam is made from two cylinders, where the inner cylinder is steel and the outer cylinder is aluminum. Which cylinder will yield first if beam is a simply supported cantilever beam? Cantilever Beams general	1	2923	April 2, 2024
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	4110	April 24, 2022
What's the optimal size rock to throw if you want to throw it as far as possible? Free Body Diagrams apple	1	4884	February 10, 2021
What are some important characteristics for material selection? Materials Science materials , apple	2	3880	October 27, 2024
Basics of Plastic Extrusion Consumer Hardware Guide plastics	1	4747	September 3, 2020
For a simply supported beam, which beam would have less deflection: a single stacked or double stacked beam? Cantilever Beams	3	3354	January 30, 2023
Can you apply MMC to a profile of surface call out in GD&T? Manufacturing & Consumer Product Design	1	2662	August 12, 2021
You have a concentrated load at the center of a beam with two point supports on either end. Describe the shear force and bending moment diagram Cantilever Beams general , zoox	2	3844	March 3, 2024
What's the difference between thermoset plastics and thermoplastics? Materials Science tesla , apple , materials	1	4633	April 25, 2022
What are some differences between aluminum and steel in terms of material properties? Materials Science materials	1	2585	August 6, 2020
What are the three common communication protocols? How do they (I2C, SPI, UART) work? Electrical Engineering apple , google , nvidia	1	4593	July 31, 2022
Why is a manhole cover round? General ME Questions microsoft	1	4498	March 22, 2022
Basics of Blow Molding Consumer Hardware Guide plastics	1	4435	September 6, 2020
What are common grades of stainless steel used in manufacturing? Materials Science general , waymo	1	4416	July 27, 2020
Testing 101: Reliability, Design Validation, Component-Level Testing, & Factory Testing Consumer Hardware Guide	2	3577	August 13, 2020
Basics of Injection Molding Consumer Hardware Guide plastics	1	4322	September 3, 2020
What are the equations of motion for a mass-spring damper system? Free Body Diagrams zoox , amazon	1	4265	October 4, 2020
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	4247	March 3, 2022
What are the key parameters to consider when selecting a fan for forced airflow? Mechanical Design heat-transfer	2	3449	February 17, 2022
What are the three main properties of an ideal operational amplifier? Electrical Engineering op-amps	1	4204	May 18, 2024
If you have an enclosed room and I open the refrigerator, how will room temperature change? Heat Transfer thermodynamics , htc	1	4173	August 4, 2020
Given an adjustable crescent wrench, which cross-sections would you use for different parts of the wrench? Mechanical Design mechanical-design , apple	2	3394	July 31, 2021