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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
|
997
|
April 24, 2022
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You have a cantilever beam, to minimize deflection, you add a support elbow. Would you add this to the top or bottom? Why?
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1
|
1627
|
April 24, 2022
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Why does condensation form on the outside of cold glass on a hot day?
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1
|
2687
|
August 5, 2020
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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
|
1747
|
April 22, 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
|
749
|
April 21, 2022
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iPhone Home Button: How would you design the mechanism of the home button?
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0
|
900
|
April 17, 2022
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Draw a commuter bike-label every single part on it. Explain what it’s job is and why it is designed that way
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0
|
542
|
August 6, 2020
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|
You have two pucks that are slid across a frictionless horizontal surface at the same initial speed, one puck passes over a large dip in the surface. Which one reaches the end of the track first?
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6
|
1400
|
April 10, 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
|
1169
|
August 5, 2020
|
|
What are the advantages & disadvantages of different types of motors?
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|
2
|
2020
|
March 14, 2022
|
|
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
|
1841
|
March 27, 2022
|
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Why is a manhole cover round?
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1
|
1160
|
March 22, 2022
|
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Why does plastic become brittle in cold temperature?
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2
|
2598
|
March 10, 2022
|
|
A steel tube and a brass rod are concentrically located. their ends are fixed on both sides using rigid plates. One of these plates is fixed to the wall, the other is free. Heat is applied to the system, explain the stresses that develop in the system
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2
|
2562
|
March 10, 2022
|
|
What are the three different modes of heat transfer?
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1
|
4699
|
July 29, 2020
|
|
You put a glass of water on a record turntable and begin slowly increasing the speed. What happens first? Does the glass slide off or tip over, or does the water splash out?
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|
1
|
4304
|
August 6, 2020
|
|
At what region of a stress-strain curve does strain hardening occur? What does strain hardening do?
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|
1
|
4362
|
July 28, 2020
|
|
What DFMA considerations would you have when switching the material of a machined component from aluminum to steel?
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2
|
1394
|
March 8, 2022
|
|
What are the three laws of thermodynamics?
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|
1
|
10497
|
August 2, 2020
|
|
If you have an enclosed room and I open the refrigerator, how will room temperature change?
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1
|
1162
|
August 4, 2020
|
|
A refrigerator is in a room and you open the door. Will the room get colder or hotter?
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|
2
|
2990
|
February 15, 2022
|
|
How do you change the cross-section of a beam to minimize deflection?
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|
1
|
1262
|
March 6, 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?
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|
1
|
999
|
March 3, 2022
|
|
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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|
4
|
3563
|
February 23, 2022
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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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|
1
|
2990
|
February 22, 2022
|
|
Reliability testing, lifecycle testing, accelerated lifecycle testing. How do you do it?
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|
1
|
991
|
February 21, 2022
|
|
Describe the stress-strain curve between brittle and flexible materials?
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|
1
|
3192
|
August 3, 2021
|
|
What are the key parameters to consider when selecting a fan for forced airflow?
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|
2
|
875
|
February 17, 2022
|
|
What are the major design considerations for optimizing airflow?
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|
0
|
586
|
February 16, 2022
|
|
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?
|
|
1
|
901
|
February 16, 2022
|