What is the process of making glass? Making glass is a fairly straightforward process. In a commercial glass plant, sand is mixed with recycled glass, sodium carbonate, and calcium carbonate. These substances are then heated in a furnace. Once in a liquid state, it is poured into molds to shape, or poured on a flat […]
What is urea formaldehyde foam insulation?
What is urea formaldehyde foam insulation? Urea formaldehyde foam insulation is injected as a mixture of urea formaldehyde resin, an acidic foaming agent, and a propellant, such as air. It was commonly used in existing houses by injecting the foam into areas, such as behind walls, where it was impractical to provide conventional insulation. Is […]
What are the two basic methods of arc shielding?
What are the two basic methods of arc shielding? What are the two basic methods of arc shielding? (1) Shielding gas, such as argon and helium; and (2) flux, which covers the welding operation and protects the molten pool from the atmosphere. Why is the shielded metal arc welding process difficult to automate? Why is […]
What is the relationship between voltage and temperature?
What is the relationship between voltage and temperature? Voltage is directly proportional to resistant (V=IR) and resistance increases with temperature due to increased vibrations of the molecules inside the conductor. Therefore voltage increases as temperature increases. What is the relationship between voltage and resistance? Ohm’s law defines the relationship between the voltage, current, and resistance […]
Is Max load rating a tire?
What is aerobic pond?
What is aerobic pond? A lagoon that forms the third treatment stage in waste stabilization ponds (WSP). It is a shallow pond with large surface area to enable light penetration and oxygenation by wind mixing. The effluent is generally free of pathogens but rich in nutrients and can be reused for fertigation or aquaculture. What […]
What are hydraulic shears used for?
What are hydraulic shears used for? Hydraulic shears are used in high volume metal fabricating operations that require the ability to accurately and quickly cut and score sheets of metal. Hydraulic shears, contrary to their name, look nothing at all like shears. How does a hydraulic shear work? With shear machining, the tool’s cutting edge […]
What is the impact of externalities?
What is the impact of externalities? Technical externalities have an impact on the consumption and production opportunities of unrelated third parties, but the price of consumption does not include the externalities. This exclusion creates a gap between the gain or loss of private individuals and the aggregate gain or loss of society as a whole. […]
How do you find a and b/in van der Waals equation?
What do chemical engineers contribute to society?
What do chemical engineers contribute to society? Chemical engineers have made so many important contributions to society, in such a short span of history, that it is hard to visualize modern life without the large-scale production of antibiotics and other drugs, fertilizers, agricultural chemicals, physiological-compatible polymers for biomedical devices, high- … What industries do chemical […]