Category: Engineering

Which materials are commonly used as cutting tool material? 1 Carbon Steels. Carbon steels have been used since the 1880s for cutting tools. 2 High Speed Steel (HSS) HSS tools are so named because they were developed to cut at higher speeds. 3 Cast Cobalt Alloys. 4 Carbides. 5 Coatings. 6 Cermets. 7 Ceramics – […]

What is SLM additive manufacturing? SLM (Selective Laser Melting) is in an additive manufacturing method specially developed for 3D Printing metal alloys. It creates parts additively by fusing metal powder particles together in a full melting process. It fits perfectly for pure metals like titanium or aluminum. What are the main differences between SLM and […]

What percentage of food does the US produce? United States And while agriculture contributes only about one percent to the GDP, the US is the world’s largest producer of maize (corn), the third-largest producer of wheat, fifth-largest producer of potatoes, tenth-largest producer of sugarcane and twelfth-largest producer of rice. What percent of the US population […]

How do you calculate mass flow in a pipe? A units check gives area x length/time x time = area x length = volume. The mass m contained in this volume is simply density r times the volume. To determine the mass flow rate mdot, we divide the mass by the time. The resulting definition […]

Why do you wire pigtails? Pigtails are also useful if you need to extend the length of a circuit wire that is too short. If a circuit wire is too short to easily connect to a device, adding a pigtail extension can lengthen the wire enough to make the connection. Is it better to pigtail […]

Which best describes the similarities and differences between the engineering and technology pathway? The sentence which best describes the similarities and differences between the Engineering and Technology pathway and the Science and Math pathway is: Both pathways require workers to have observational skills while the Engineering and Technology pathway requires CAD knowledge. Which tasks are […]

Is it better to finance a car through bank or dealership? In some cases, however, a dealer may negotiate a higher interest rate with you than what the lender offers and take the difference as compensation for handling the financing. In general, you can usually get lower interest rates on a new car through a […]

How do you calculate the flow rate of a heat exchanger? 4.0 – HEAT EXCHANGERS CALCULATIONS: The main basic Heat Exchanger equation is: Q = U x A x ΔTm = The log mean temperature difference ΔTm is: ΔTm = (T1 – t2) – (T2 – t1) = °F. T1 = Inlet tube side fluid […]

How do you know which vibrational modes are IR active? In order to determine which modes are IR active, a simple check of the irreducible representation that corresponds to x,y and z and a cross check with the reducible representation Γvib is necessary. If they contain the same irreducible representation, the mode is IR active. […]

What does a high Reynolds number indicate? The higher the Reynolds number, the greater the range of scales. The largest eddies will always be the same size; the smallest eddies are determined by the Reynolds number. What is the explanation for this phenomenon? A large Reynolds number indicates that viscous forces are not important at […]