Hardware FYI

Topic	Replies	Views	Activity
Rank the strength of the following materials from strongest to weakest: carbon fiber, plastic, steel, aluminum Materials Science apple , materials	4	6136	June 25, 2023
GD&T: Home Button Placement Problem (Apple) Manufacturing & Consumer Product Design apple	1	2876	March 2, 2022
If two vehicles are identical, except for one weighing twice as much as the other vehicle, and they roll down a hill, which car reaches the bottom first? Free Body Diagrams physics , tesla	7	8013	February 5, 2023
Label and describe the key points on a stress-strain curve Materials Science general	1	4515	July 27, 2020
What are six ways to reduce cantilever beam deflection? Cantilever Beams general , apple , tesla	3	17211	February 5, 2023
Describe/draw the stress-strain curve of aluminum vs. steel on the same graph Materials Science apple , materials	4	15140	February 5, 2023
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	2797	March 10, 2022
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	9777	February 5, 2023
Given a wall-mounted cantilever beam and a point load at the free end, describe the shear force diagram and bending moment diagram Cantilever Beams htc , zoox , apple	2	6818	June 20, 2023
On which side of a wall-mounted cantilever beam induced with a point load will it fail? Cantilever Beams cisco , spacex	3	9372	April 5, 2021
What are the three laws of thermodynamics? Heat Transfer general	1	11804	August 2, 2020
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? Cantilever Beams general , apple	4	4070	February 23, 2022
You have a stool with four legs identical in size. Two legs are made from aluminum, while the other legs are made from steel. If a load is placed on the stool's seat, will the legs take equal load or not? Mechanical Design spacex	7	5077	April 17, 2021
Describe/draw the stress-strain curve between aluminum, steel, hardened steel, & plastics on the same graph Materials Science apple , general , materials	2	2515	February 24, 2023
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	1613	April 10, 2022
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	6134	June 14, 2023
Apple Interviewing Process (Mechanical + Product Design Engineers) Gold Subscription Level	0	1988	August 5, 2020
How do you calculate the correct sample size for reliability testing? Manufacturing & Consumer Product Design amazon , apple , waymo , google	3	5352	April 15, 2021
Top Mechanical Engineering Interview Questions Mechanical Engineering featured	0	9642	April 2, 2022
Why does condensation form on the outside of cold glass on a hot day? General ME Questions zoox , thermodynamics	1	3307	August 5, 2020
When is a screw better than a nail and the reverse question? Manufacturing & Consumer Product Design general , spacex , cover	1	1682	November 13, 2020
What are the three different modes of heat transfer? Heat Transfer waymo , heat-transfer	1	5211	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? Free Body Diagrams apple , general , physics	1	4873	August 6, 2020
At what region of a stress-strain curve does strain hardening occur? What does strain hardening do? Materials Science general , cisco	1	4850	July 28, 2020
What graph would you look at to see whether a material would fail from long-term exposure to vibrations? Mechanical Design tesla , mechanical-design	1	2587	September 11, 2020
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? Free Body Diagrams apple	2	3573	July 24, 2023
A refrigerator is in a room and you open the door. Will the room get colder or hotter? Heat Transfer	2	3491	February 15, 2022
Describe the stress-strain curve between brittle and flexible materials? Materials Science apple , tesla	1	4030	August 3, 2021
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	3940	July 29, 2020
You are in a rowing boat on a lake. A large heavy rock is also in the boat. You heave the rock overboard. It sinks to the bottom of the lake. What happens to the water level in the lake? Does it rise, fall or stay the same? General ME Questions general	1	3800	July 27, 2020
What are the factors that influence the spring constant? Free Body Diagrams	1	3704	August 3, 2021
Why does plastic become brittle in cold temperature? Materials Science tesla	2	3002	March 10, 2022
Given a point-load at the end of a wall-mounted cantilever beam, what is the shear stress at the wall? Cantilever Beams amazon	4	2240	April 5, 2021
What is the difference between stiffness and strength? Materials Science general , apple , airbnb	1	3431	August 5, 2020
What are the advantages & disadvantages of different types of motors? General ME Questions mechatronics	2	2742	March 14, 2022
Basics of Sheet Metal Design Consumer Hardware Guide general , metals	2	2567	September 6, 2020
What are the different ways you can identify if a part is steel or aluminum? Materials Science apple , materials	1	2990	August 5, 2020
Additional Useful Resources Online Consumer Hardware Guide	0	743	May 6, 2021
When selecting a material what would you take into consideration more, tensile strength or yield strength? Materials Science	3	2004	November 29, 2021
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	1952	June 3, 2023
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	2085	March 27, 2022
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	2070	April 22, 2022
A floating helium balloon is in the backseat of a car. If the car accelerates forward, which direction does the balloon float and why? Free Body Diagrams tesla	1	2429	August 4, 2020
How can you reduce moisture absorption in nylon? Materials Science tesla , materials	1	2419	September 28, 2020
You have a cantilever beam, to minimize deflection, you add a support elbow. Would you add this to the top or bottom? Why? Cantilever Beams general	1	2411	April 24, 2022
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? Heat Transfer synapse , heat-transfer	3	1681	December 2, 2021
What are the advantages & disadvantages between a buck converter and a LDO? Electrical Engineering apple , power-electronics	2	1890	May 24, 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	1838	May 28, 2022
What are design for manufacturability (DFM) considerations you would assess while designing an injection molded part? Manufacturing & Consumer Product Design manufacturing	1	1267	August 8, 2020
What's the optimal size rock to throw if you want to throw it as far as possible? Free Body Diagrams apple	1	2213	February 10, 2021