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How do you change the cross-section of a beam to minimize deflection?
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1
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4581
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March 6, 2022
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What are the advantages & disadvantages between a buck converter and a LDO?
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2
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6512
|
May 24, 2022
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Given a point-load at the end of a wall-mounted cantilever beam, what is the shear stress at the wall?
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4
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4831
|
April 5, 2021
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Additional Useful Resources Online
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0
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1843
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May 6, 2021
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What are the different types of stress & force a material can endure?
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1
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7219
|
August 3, 2021
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What are the key components in a consumer electronic laptop?
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2
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3297
|
October 3, 2020
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How would you tolerance a touch screen assembly to the mounting chassis of a smart phone?
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5
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3959
|
August 16, 2025
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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?
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3
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4746
|
June 3, 2023
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Is it faster to cook pasta if you add it in before or after a pot of water starts boiling?
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2
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5437
|
April 22, 2022
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How do the strength-to-weight ratio of aluminum vs. steel compare?
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1
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6651
|
August 7, 2020
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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?
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4
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3983
|
October 30, 2024
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A disk with the hole in the middle is heated. Does the hole get bigger, smaller, or stay the same size?
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2
|
4812
|
March 27, 2022
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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?
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2
|
4773
|
May 28, 2022
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What's the difference between a true stress-strain curve and a traditional stress-strain curve?
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1
|
5680
|
August 5, 2020
|
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What are seven ways to bond plastic and metal?
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2
|
4602
|
June 15, 2023
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Basics of Compression Molding
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1
|
5610
|
September 6, 2020
|
|
What does open-drain & push-pull mean?
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2
|
4446
|
January 31, 2023
|
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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?
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1
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3016
|
September 24, 2023
|
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Can you describe the two-shot injection molding process?
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2
|
4363
|
May 3, 2022
|
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What's the working principle behind common analog sensors? (strain gauge, thermocouples, etc.)
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0
|
1342
|
December 23, 2023
|
|
How do you test for waterproofing on consumer electronic products (smart phone, tablet, etc)?
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3
|
3667
|
August 28, 2023
|
|
When selecting a material what would you take into consideration more, tensile strength or yield strength?
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3
|
3567
|
November 29, 2021
|
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What are design for manufacturability (DFM) considerations you would assess while designing an injection molded part?
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1
|
2784
|
August 8, 2020
|
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How can you reduce moisture absorption in nylon?
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1
|
4944
|
September 28, 2020
|
|
Take-Home Design Challenges Guide
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1
|
4815
|
December 8, 2023
|
|
Can you draw the block diagram for an inverting operational amplifier and derive the gain equation?
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2
|
3918
|
April 4, 2022
|
|
What's the optimal size rock to throw if you want to throw it as far as possible?
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1
|
4280
|
February 10, 2021
|
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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?
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2
|
3369
|
April 24, 2022
|
|
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
|
|
2
|
3322
|
March 3, 2024
|
|
Can you apply MMC to a profile of surface call out in GD&T?
|
|
1
|
2285
|
August 12, 2021
|
|
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?
|
|
1
|
2238
|
April 2, 2024
|
|
What's the difference between thermoset plastics and thermoplastics?
|
|
1
|
3914
|
April 25, 2022
|
|
What are some important characteristics for material selection?
|
|
2
|
3194
|
October 27, 2024
|
|
For a simply supported beam, which beam would have less deflection: a single stacked or double stacked beam?
|
|
3
|
2765
|
January 30, 2023
|
|
What are the equations of motion for a mass-spring damper system?
|
|
1
|
3837
|
October 4, 2020
|
|
Basics of Plastic Extrusion
|
|
1
|
3742
|
September 3, 2020
|
|
What are some differences between aluminum and steel in terms of material properties?
|
|
1
|
2096
|
August 6, 2020
|
|
Why is a manhole cover round?
|
|
1
|
3689
|
March 22, 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?
|
|
1
|
3683
|
March 3, 2022
|
|
Basics of Injection Molding
|
|
1
|
3662
|
September 3, 2020
|
|
Given an adjustable crescent wrench, which cross-sections would you use for different parts of the wrench?
|
|
2
|
2955
|
July 31, 2021
|
|
What are the three main properties of an ideal operational amplifier?
|
|
1
|
3617
|
May 18, 2024
|
|
Testing 101: Reliability, Design Validation, Component-Level Testing, & Factory Testing
|
|
2
|
2948
|
August 13, 2020
|
|
Basics of Blow Molding
|
|
1
|
3565
|
September 6, 2020
|
|
What are the three common communication protocols? How do they (I2C, SPI, UART) work?
|
|
1
|
3458
|
July 31, 2022
|
|
What are the key parameters to consider when selecting a fan for forced airflow?
|
|
2
|
2805
|
February 17, 2022
|
|
If you have an enclosed room and I open the refrigerator, how will room temperature change?
|
|
1
|
3435
|
August 4, 2020
|
|
Engineering Builds: EVT, DVT, PVT
|
|
1
|
3436
|
October 12, 2023
|
|
What DFMA considerations would you have when switching the material of a machined component from aluminum to steel?
|
|
2
|
2793
|
March 8, 2022
|
|
Basics of Thermoforming
|
|
1
|
3413
|
September 6, 2020
|