Week 2 In-Class Activity 116

Multiple-Choice Questions In 4D printing, what is the fourth dimension? A. Space B. Movement C. Time D. Material What inspired the team at the MIT self-assembly lab to conceive the Autonomous Mass Assembly concept? A. The natural growth of viruses B. Japanese architecture C. Islamic patterns in traditional ornaments D. The movie "Avatar" Which of the following are possible applications of 4D printing? Select all correct answers. A. Smart water pipes B. Self-assembled structures C. Ready-made electronic devices D. Superior sound systems What activating energies are used in the 4D products presented in the lesson? A. Heat B. Water C. Microwave D. Sound-waves

What process is used to verify that a manufactured part or hardware component conforms/follows the intent of the design and customer specification? HINT: The answer is one word - not an acronym.

Non destructive testing 1. Give your analysis on how NDT can be use in the current industry. 2. Rank all kinds of NDT from the most expensive to the cheapest. 3. What is the most used NDT process in the industry? check the image below for guide.

Mike and Kelly Kyson were two small city teachers who happen to fall in love and get married. Soon after they were married, children were on the way. Kelly was always involved in crafts and wanted to spend time with her children, so she figured that she could stay home and make leather handbags and purses to earn extra money. After doing this for a while, she grew tired of dealing with the large leather suppliers and jobbers-who were giving heavy discounts to large customers, but were charging near retail prices to mid and small business. She decided to directly source the leather herself. To get the volumes necessary to buy directly from the leather tanners and processors, Kelly needed to buy in higher volumes. Initially, she would order large leather shipments and sell-off the excess on EBay. It did not take long for her to realize that she was making more money selling leather than making and selling handbags and purses. Within a couple of years Kelly and Mike became the largest…

CNC vs additive Manufactoring

For the process shown in the schematic below, which of the statements is/are incorrect? Feed hopper Feed hopper Mold cavity Mold Nozzle K Spreader XXX Heating chamber Ram Hydraulic pressure Plastic pellets Turning screw Barrel Heaters Shaping die Molten plastic Extrudate Tubing and pipes Sheet and film Structural parts Select one or more: O a. The feedstock has to be molten or liquid monomer, the temperature of which will constantly be held above the melting temperature O b. The process can only work with thermoplastics and not with thermosets due to the thermal processing requirements O c. This process is best suited for the large volume production of tubes, bars and beams due to the nature of the extrusion process Od. The mould cavity region is usually temperature controlled so that at the point of injection it is heated and then gradually cooled down until the part is released O e. To release the part, the process typically involves the mould sections opening and the ejector pins…

Kindly solve what is ask, I want a clean and clear solution please so that I can clearly understand. Thank you so much!-

List the main advantages of a microfoam leak detectionsolution over standard bubble solutions.

There may or may not be one or more mistakes in the solution. Go through the solution carefully and then do the following. 1. State if the solution is correct or incorrect 2. If the solution is incorrect, identify what is the mistake in the solution. Be specific and succinct. 3. If the solution is incorrect, provide the final solution with appropriate steps. Problem: A refrigeration cycle uses refrigerant R-134a to cool down water from 40°C to 20°C. The refrigerant R-134a enters the cycle as saturated liquid at -15°C and exits as saturated vapor at the same temperature. The mass flow rate of R-134a is 0.12 kg/s. The overall heat transfer coefficient is 1400 W/m².K. The surface area of the heat exchanger is 1.4 m². What is the rate at which heat is being exchanged between R-134a and water? Assume that the heat exchanger is perfectly insulated from outside (i.e., there is no convection or radiation with the outside/surrounding). Solution: We know, from the definition of overall heat…