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Basics of Thermoforming
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1
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2567
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September 6, 2020
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You are machining two plates with identical hole patterns that will bolted together. How do you ensure that they perfectly line up?
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2
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2069
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January 21, 2025
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Basics of Geometric Dimensioning and Tolerancing (GD&T)
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1
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2513
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December 8, 2023
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Is a laminar or turbulent boundary layer better for heat transfer from the surface to the environment?
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1
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2495
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August 5, 2020
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What are the three main properties of an ideal operational amplifier?
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1
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2494
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May 18, 2024
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Your product is within spec at one location, but out of spec in another. Why?
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2
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2033
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January 21, 2025
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When should you counterbore vs. countersink a hole?
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1
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2463
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July 31, 2021
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If you had to pressurize a pressure vessel in testing, would you rather pressurize with liquid or gas and why?
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1
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2459
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January 21, 2024
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You have two objects that mate together, you want to decrease the total linear tolerance stack up. What can you do to decrease the total tolerance stackup?
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2
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1998
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October 30, 2024
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What are common grades of stainless steel used in manufacturing?
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1
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2435
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July 27, 2020
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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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2388
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July 31, 2022
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What is a unity feedback loop and the core components of the system?
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1
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2380
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September 7, 2020
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Name all the ways of actuating an object you can think of. What are the pros and cons of each?
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2
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1891
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February 15, 2022
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Engineering Builds: EVT, DVT, PVT
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1
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2171
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October 12, 2023
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Name all the ways to to lighten a cantilevered I beam with a point load on the end, while minimizing weight and deflection
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2
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1767
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October 30, 2024
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If there is a diving board, how would you half the deflection?
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1
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2151
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July 31, 2021
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5% failure at reliability test, how to solve?
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1
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2148
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June 13, 2023
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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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1724
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April 4, 2022
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What is the difference between a capacitor and an inductor and how are they commonly used?
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2
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1705
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May 23, 2024
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Why does a computer/office chair have fives legs? Why does a chair have four?
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1
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2065
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September 15, 2023
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Manufacturing 101: Plastics
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1
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2041
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October 12, 2023
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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?
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1
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2039
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February 16, 2022
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What is the Nyquist Theorem and how do you define a sufficient sampling rate?
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2
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1659
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April 18, 2022
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On the material datasheet of most polymers, the glass transition temperature, Tg, is provided. What does the glass transition temperature refer to?
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1
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2003
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January 5, 2024
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You have a bench (image), where would you sit to maximize the reaction force on one end?
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2
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1622
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August 12, 2021
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For the following joints (images) describe the forces and failure modes of the bolted connections. Why is pretensioning the bolts important? What would fatigue failure look like for the bolted connections?
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1
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1977
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August 12, 2021
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If you have a cantilevered beam with one end fixed to a wall and the other end free, and there is a moment acting on the free end, where will the beam fail?
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1
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1971
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July 31, 2021
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Imagine a dashed line down a mile length of a straight road. Explain how you would calculate the volume of paint required for this mile stretch of road
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1
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1936
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September 15, 2023
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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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1908
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April 21, 2022
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Identifying Metals
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2
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1499
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February 26, 2025
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CNC vs other techniques
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3
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723
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July 31, 2024
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Is a pressure vessel more likely to fail from repeated cycles of low pressure or a one off high pressure spike?
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1
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1814
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August 12, 2021
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When you use the front brakes on your bicycle, why does your body want to rotate over the front wheel?
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1
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1811
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January 13, 2021
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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?
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1
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1808
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November 29, 2021
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Brainstorm 15-20 ways to remove balloons from a room
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0
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2535
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October 26, 2022
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How does power draw differ between thick and thin cabling?
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1
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1789
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September 11, 2020
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What are diodes and which purpose do they serve in electrical design?
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1
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1782
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March 7, 2022
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What are the differences between MOSFETs and Bi-Polar Junction Transistors?
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1
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1780
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March 7, 2022
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How would you design a satellite that orbits the earth and passively maintains a temperature of 300K +/- 10K?
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2
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1442
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September 12, 2024
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What are the major design considerations for optimizing airflow?
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1
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1747
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September 18, 2023
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Crafting an Effective Engineering Resume
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3
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1211
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November 14, 2023
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When parts are designed, how do you ensure the manufacturer is building what you intended to design?
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1
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1679
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January 5, 2024
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Draw the schematics for a simple first-order low-pass filter
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1
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1678
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May 18, 2024
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Can you describe the injection molding manufacturing process?
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1
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1672
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January 5, 2024
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What are the base and peak loads of a generation system, which methods of power generation and storage are suitable for each?
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0
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418
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July 4, 2024
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Plastic Manufacturing & Identification
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1
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1634
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November 18, 2023
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How would you design an experiment to measure the thermal conductivity of corrugated cardboard?
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1
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1616
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September 12, 2024
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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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2230
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April 17, 2022
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What sensors are used in an Xbox Kinect? Explain how these sensors work and why are they are used
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1
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1576
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October 3, 2020
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What is a PID Controller?
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1
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1564
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September 7, 2020
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