Category: Engineering

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 […]

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 […]

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 […]

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 […]

When cutting short pieces of wood they should be held? 2. Small pieces should be held in a clamp or jig. Which side of the line should you always make cuts on? Make all cuts on the waste-side of the line. 9. Always keep your hands on the sides of the blade while operating…. never […]

What are the four main components of refrigeration system? Mechanical refrigerators have four basic elements: an evaporator, a compressor, a condenser, and a refrigerant flow control (expansion valve). A refrigerant circulates among the four elements changing from liquid to gas and back to liquid. What part of a fridge makes it cold? evaporator What is […]

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 […]

What is the term for removing refrigerant in any condition from a system and storing it in an external container without necessarily testing and processing it in any way? Recycling is to. Remove refrigerant, in any condition, from a system and store it in an external container, without necessarily testing it or processing it in […]