GD&T: Home Button Placement Problem (Apple)
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1
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3382
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March 2, 2022
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Rank the strength of the following materials from strongest to weakest: carbon fiber, plastic, steel, aluminum
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4
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6973
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June 25, 2023
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Top Mechanical Engineering Interview Questions
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0
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11904
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April 2, 2022
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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?
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7
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8921
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February 5, 2023
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Label and describe the key points on a stress-strain curve
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1
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5100
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July 27, 2020
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Describe/draw the stress-strain curve of aluminum vs. steel on the same graph
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4
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17221
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February 5, 2023
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What are six ways to reduce cantilever beam deflection?
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3
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19066
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February 5, 2023
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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
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3025
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March 10, 2022
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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?
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6
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10658
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February 5, 2023
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Given a wall-mounted cantilever beam and a point load at the free end, describe the shear force diagram and bending moment diagram
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2
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7611
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June 20, 2023
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On which side of a wall-mounted cantilever beam induced with a point load will it fail?
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3
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10191
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April 5, 2021
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What are the three laws of thermodynamics?
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1
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13206
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August 2, 2020
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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
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4353
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February 23, 2022
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Describe/draw the stress-strain curve between aluminum, steel, hardened steel, & plastics on the same graph
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2
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3027
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February 24, 2023
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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?
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7
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5432
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April 17, 2021
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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
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1794
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April 10, 2022
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If you have an 'I' cross section cantilever beam and you want to make it stiffer, do you increase the height or width?
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3
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6993
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June 14, 2023
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How do you calculate the correct sample size for reliability testing?
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3
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6857
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April 15, 2021
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Apple Interviewing Process (Mechanical + Product Design Engineers)
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0
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2239
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August 5, 2020
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Why does condensation form on the outside of cold glass on a hot day?
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1
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3755
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August 5, 2020
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When is a screw better than a nail and the reverse question?
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1
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1841
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November 13, 2020
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What are the three different modes of heat transfer?
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1
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5553
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July 29, 2020
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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
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5280
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August 6, 2020
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At what region of a stress-strain curve does strain hardening occur? What does strain hardening do?
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1
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5247
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July 28, 2020
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What graph would you look at to see whether a material would fail from long-term exposure to vibrations?
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1
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2814
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September 11, 2020
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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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2
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4007
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July 24, 2023
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A refrigerator is in a room and you open the door. Will the room get colder or hotter?
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2
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3984
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February 15, 2022
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Describe the stress-strain curve between brittle and flexible materials?
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1
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4660
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August 3, 2021
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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
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1
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4522
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July 29, 2020
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What are the factors that influence the spring constant?
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1
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4335
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August 3, 2021
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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?
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1
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4278
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July 27, 2020
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Why does plastic become brittle in cold temperature?
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2
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3328
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March 10, 2022
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What are the advantages & disadvantages of different types of motors?
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2
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3200
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March 14, 2022
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Given a point-load at the end of a wall-mounted cantilever beam, what is the shear stress at the wall?
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4
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2453
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April 5, 2021
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What is the difference between stiffness and strength?
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1
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3855
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August 5, 2020
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Basics of Sheet Metal Design
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2
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2861
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September 6, 2020
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Additional Useful Resources Online
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0
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832
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May 6, 2021
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What are the different ways you can identify if a part is steel or aluminum?
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1
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3245
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August 5, 2020
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When selecting a material what would you take into consideration more, tensile strength or yield strength?
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3
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2144
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November 29, 2021
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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?
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3
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2144
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June 3, 2023
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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
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2953
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April 24, 2022
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What are the advantages & disadvantages between a buck converter and a LDO?
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2
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2307
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May 24, 2022
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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
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2285
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April 22, 2022
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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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2277
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March 27, 2022
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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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2629
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August 4, 2020
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How can you reduce moisture absorption in nylon?
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1
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2608
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September 28, 2020
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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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1814
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December 2, 2021
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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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2062
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May 28, 2022
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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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2514
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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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1391
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August 8, 2020
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