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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?
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8
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5271
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February 2, 2024
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Walk me through the different materials used on the visible exterior of your phone, why those specific materials might be used, and how they are manufactured
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1
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1372
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January 25, 2024
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What are the different ways you can identify if a part is steel or aluminum?
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1
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3752
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August 5, 2020
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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?
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2
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2175
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February 15, 2022
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Brainstorm 15-20 ways to remove balloons from a room
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0
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1495
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October 26, 2022
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How would you tolerance a touch screen assembly to the mounting chassis of a smart phone?
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0
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1140
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January 17, 2023
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iPhone Home Button: How would you design the mechanism of the home button?
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0
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1396
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April 17, 2022
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How do you test for waterproofing on consumer electronic products (smart phone, tablet, etc)?
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3
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1657
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August 28, 2023
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A car on a hill of constant slope accelerates from rest under gravity to a point on the hill. If you want to maximize the velocity of the car at this point, where along the length of the car (e.g. downhill or uphill) would you fix an additional mass?
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2
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4873
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July 24, 2023
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Find the maximum sum of a subarray
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1
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254
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July 11, 2023
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Merge two sorted linked lists
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1
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286
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July 11, 2023
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Merge overlapping intervals
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1
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233
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July 11, 2023
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Rank the strength of the following materials from strongest to weakest: carbon fiber, plastic, steel, aluminum
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4
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8643
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June 25, 2023
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Given a wall-mounted cantilever beam and a point load at the free end, describe the shear force diagram and bending moment diagram
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2
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9337
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June 20, 2023
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5% failure at reliability test, how to solve?
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1
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1227
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June 13, 2023
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Describe/draw the stress-strain curve between aluminum, steel, hardened steel, & plastics on the same graph
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2
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4363
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February 24, 2023
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Describe/draw the stress-strain curve of aluminum vs. steel on the same graph
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4
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22481
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February 5, 2023
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If I have a solid rod and hollow rod with the same mass and I let them roll down a ramp, which one reaches the bottom first and why?
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6
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12596
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February 5, 2023
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What are six ways to reduce cantilever beam deflection?
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3
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22805
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February 5, 2023
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GD&T: Home Button Placement Problem (Apple)
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1
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4415
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March 2, 2022
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What are the three common communication protocols? How do they (I2C, SPI, UART) work?
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1
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936
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July 31, 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
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2456
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May 28, 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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2946
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May 24, 2022
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What are the common wireless communication protocols in IOT? How do they work?
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0
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435
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May 24, 2022
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Can you describe the two-shot injection molding process?
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2
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2226
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May 3, 2022
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What's the difference between thermoset plastics and thermoplastics?
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1
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1976
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April 25, 2022
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How do you interpolate the physical property of one unknown metal among metal sheets of known physical properties?
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1
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1132
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April 21, 2022
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Can you draw the block diagram for an inverting operational amplifier and derive the gain equation?
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2
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1262
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April 4, 2022
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Can you draw the block diagram for a non-inverting operational amplifier and derive the gain equation?
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2
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664
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April 4, 2022
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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
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2613
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March 27, 2022
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