Latest Mechanical Engineering topics

Topic	Replies	Views	Activity
What are seven ways to bond plastic and metal? Mechanical Design	2	994	June 15, 2023
If you have an 'I' cross section cantilever beam and you want to make it stiffer, do you increase the height or width? Cantilever Beams cover	3	8685	June 14, 2023
5% failure at reliability test, how to solve? Reliability & Mechanical Test apple	1	1227	June 13, 2023
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? Free Body Diagrams spacex	3	2542	June 3, 2023
How would you measure repeatability of an arm that needs to swing exactly 180 degrees (with a sensor mounted on the end?) Reliability & Mechanical Test	1	1058	April 26, 2023
What are common grades of stainless steel used in manufacturing? Materials Science general , waymo	1	1531	July 27, 2020
Describe/draw the stress-strain curve between aluminum, steel, hardened steel, & plastics on the same graph Materials Science apple , general , materials Can you draw a Stress-Strain diagram with: aluminum, steel, hardened steel, plastics/ceremics? Any idea on which material to select with better performance in beam problem compared to aluminum?	2	4369	February 24, 2023
What are the factors that influence the spring constant? Free Body Diagrams	1	5501	August 3, 2021
Describe/draw the stress-strain curve of aluminum vs. steel on the same graph Materials Science apple , materials Hint: How do aluminum and steel differ in yield strength and ultimate tensile strength?	4	22508	February 5, 2023
For a simply supported beam, which beam would have less deflection: a single stacked or double stacked beam? Cantilever Beams	3	1339	January 30, 2023
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? Free Body Diagrams general , apple	6	12622	February 5, 2023
A flagpole is mounted to the ground and an eagle is sitting on top with wind causing the pole to sway back and forth. Describe ways to reduce the amount of motion in the flagpole Cantilever Beams general , aurishealth	1	5756	July 29, 2020
What are six ways to reduce cantilever beam deflection? Cantilever Beams general , apple , tesla Fun fact: This is one of the most common technical questions for mechanical engineers. You’ll often see variations of this question phrased in different ways (i.e. case studies, design trade-offs, etc.). Understanding fu…	3	22825	February 5, 2023
GD&T: Home Button Placement Problem (Apple) Manufacturing & Consumer Product Design apple	1	4419	March 2, 2022
How far out do you expect a tape measurer to extend before it begins to fall? What type of failure mode does this encompass? Cantilever Beams spacex	2	2220	June 21, 2022
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? Mechanical Design apple , spacex	2	2460	May 28, 2022
Can you describe the two-shot injection molding process? Manufacturing & Consumer Product Design apple	2	2227	May 3, 2022
What's the difference between thermoset plastics and thermoplastics? Materials Science tesla , apple , materials	1	1977	April 25, 2022
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? Mechanical Design spinlaunch , spacex	2	1524	April 24, 2022
Why does condensation form on the outside of cold glass on a hot day? General ME Questions zoox , thermodynamics	1	4646	August 5, 2020
Is it faster to cook pasta if you add it in before or after a pot of water starts boiling? Heat Transfer heat-transfer , synapse	2	2697	April 22, 2022
How do you interpolate the physical property of one unknown metal among metal sheets of known physical properties? Materials Science apple	1	1133	April 21, 2022
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? Free Body Diagrams	6	2177	April 10, 2022
What's the difference between a true stress-strain curve and a traditional stress-strain curve? Materials Science waymo , materials	1	1911	August 5, 2020
What are the advantages & disadvantages of different types of motors? General ME Questions mechatronics	2	3956	March 14, 2022
A disk with the hole in the middle is heated. Does the hole get bigger, smaller, or stay the same size? Heat Transfer apple	2	2616	March 27, 2022
Why is a manhole cover round? General ME Questions microsoft	1	1779	March 22, 2022
Why does plastic become brittle in cold temperature? Materials Science tesla	2	3919	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 Cantilever Beams apple , materials	2	3469	March 10, 2022
What are the three different modes of heat transfer? Heat Transfer waymo , heat-transfer	1	6286	July 29, 2020

What are seven ways to bond plastic and metal?

Mechanical Design

2

994

June 15, 2023

If you have an 'I' cross section cantilever beam and you want to make it stiffer, do you increase the height or width?

Cantilever Beams

cover

3

8685

June 14, 2023

5% failure at reliability test, how to solve?

Reliability & Mechanical Test

apple

1

1227

June 13, 2023

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?

Free Body Diagrams

spacex

3

2542

June 3, 2023

How would you measure repeatability of an arm that needs to swing exactly 180 degrees (with a sensor mounted on the end?)

Reliability & Mechanical Test

1

1058

April 26, 2023

What are common grades of stainless steel used in manufacturing?

Materials Science

general , waymo

1

1531

July 27, 2020

Describe/draw the stress-strain curve between aluminum, steel, hardened steel, & plastics on the same graph

Materials Science

apple , general , materials

Can you draw a Stress-Strain diagram with: aluminum, steel, hardened steel, plastics/ceremics? Any idea on which material to select with better performance in beam problem compared to aluminum?

2

4369

February 24, 2023

What are the factors that influence the spring constant?

Free Body Diagrams

1

5501

August 3, 2021

Describe/draw the stress-strain curve of aluminum vs. steel on the same graph

Materials Science

apple , materials

Hint: How do aluminum and steel differ in yield strength and ultimate tensile strength?

4

22508

February 5, 2023

For a simply supported beam, which beam would have less deflection: a single stacked or double stacked beam?

Cantilever Beams

3

1339

January 30, 2023

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?

Free Body Diagrams

general , apple

6

12622

February 5, 2023

A flagpole is mounted to the ground and an eagle is sitting on top with wind causing the pole to sway back and forth. Describe ways to reduce the amount of motion in the flagpole

Cantilever Beams

general , aurishealth

1

5756

July 29, 2020

What are six ways to reduce cantilever beam deflection?

Cantilever Beams

general , apple , tesla

Fun fact: This is one of the most common technical questions for mechanical engineers. You’ll often see variations of this question phrased in different ways (i.e. case studies, design trade-offs, etc.). Understanding fu…

3

22825

February 5, 2023

GD&T: Home Button Placement Problem (Apple)

Manufacturing & Consumer Product Design

apple