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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2651
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March 27, 2022
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Top Electrical Engineering Interview Questions
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3
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1233
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July 12, 2023
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A floating helium balloon is in the backseat of a car. If the car accelerates forward, which direction does the balloon float and why?
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1
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3080
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August 4, 2020
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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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2502
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May 28, 2022
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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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3
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2130
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December 2, 2021
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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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2974
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August 7, 2020
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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
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1664
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August 8, 2020
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How can you reduce moisture absorption in nylon?
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1
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2925
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September 28, 2020
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Can you describe the two-shot injection molding process?
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2
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2258
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May 3, 2022
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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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2200
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February 15, 2022
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What's the optimal size rock to throw if you want to throw it as far as possible?
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1
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2661
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February 10, 2021
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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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1682
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August 28, 2023
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Given an adjustable crescent wrench, which cross-sections would you use for different parts of the wrench?
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2
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1938
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July 31, 2021
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Basics of Compression Molding
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1
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2235
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September 6, 2020
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What DFMA considerations would you have when switching the material of a machined component from aluminum to steel?
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2
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1814
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March 8, 2022
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What are the equations of motion for a mass-spring damper system?
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1
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2210
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October 4, 2020
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What are the key components in a consumer electronic laptop?
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2
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1767
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October 3, 2020
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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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2147
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August 3, 2021
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The buckle on your backpack is breaking. How would you redesign the part to ensure this doesn't happen?
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1
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2017
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August 10, 2020
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What's the difference between thermoset plastics and thermoplastics?
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1
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2008
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April 25, 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
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1946
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August 5, 2020
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You have a long slender vertical member with a compressive force on one end, what if the dominant failure mode?
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2
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1570
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February 15, 2022
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For a simply supported beam, which beam would have less deflection: a single stacked or double stacked beam?
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3
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1357
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January 30, 2023
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Basics of Injection Molding
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1
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1912
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September 3, 2020
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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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1071
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September 24, 2023
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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
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1544
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April 24, 2022
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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?
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1
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1884
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March 3, 2022
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Why is a manhole cover round?
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1
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1802
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March 22, 2022
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Types of Thermal Cooling for Consumer Electronics
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2
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1466
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October 4, 2020
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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
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2
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1429
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March 3, 2024
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What are the key parameters to consider when selecting a fan for forced airflow?
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2
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1408
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February 17, 2022
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If I have sealed tubing subjected to its maximum pressure rating, where would it fail and why?
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1
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1723
|
October 3, 2020
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When should you counterbore vs. countersink a hole?
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1
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1684
|
July 31, 2021
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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?
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1
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1663
|
February 21, 2022
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If you have an enclosed room and I open the refrigerator, how will room temperature change?
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1
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1641
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August 4, 2020
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You have two identical bolts and nuts torqued to the same spec clamping two faces together. One bolt is lubricated while the other is not. What is the clamp load of each bolt?
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2
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1325
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February 14, 2024
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Basics of Blow Molding
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1
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1601
|
September 6, 2020
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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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1301
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April 4, 2022
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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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1275
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February 15, 2022
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What are common grades of stainless steel used in manufacturing?
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1
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1559
|
July 27, 2020
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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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1553
|
August 5, 2020
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Testing 101: Reliability, Design Validation, Component-Level Testing, & Factory Testing
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2
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1255
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August 13, 2020
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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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1516
|
July 31, 2021
|
Basics of Plastic Extrusion
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1
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1510
|
September 3, 2020
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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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1492
|
July 31, 2021
|
What are some important characteristics for material selection?
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1
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1479
|
August 5, 2020
|
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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1455
|
January 21, 2024
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Basics of Thermoforming
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1
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1418
|
September 6, 2020
|
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?
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1
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801
|
April 2, 2024
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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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1409
|
February 16, 2022
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