Which pollutants are monitored in urban atmosphere?

Which pollutants are monitored in urban atmosphere? Nitrogen dioxide, ground-level ozone and particulate matter are the three main air pollutants in modern cities and the health effects of these are well-documented. What are the six pollutants monitored by the EPA? EPA has established national ambient air quality standards (NAAQS) for six of the most common […]

What is lot sizing techniques?

What is lot sizing techniques? Static lot sizing methods consist of ordering a fixed quantity or the exact amount of requirements for the date needed. 1. Fixed Order Quantity: This method involves ordering a fixed quantity when the reorder point is reached. The quantity often depends on the supplier-specific constraints. What are the trade offs […]

What is slip deformation?

What is slip deformation? Slip is the prominent mechanism of plastic deformation in metals. It involves sliding of blocks of crystal over one other along definite crystallographic planes, called slip planes. • it is analogous to a deck of cards when it is pushed from one end. Slip occurs when shear stress applied exceeds a […]

What is meant by hydraulic gradient line?

What is meant by hydraulic gradient line? : a line joining the points of highest elevation of water in a series of vertical open pipes rising from a pipeline in which water flows under pressure. What is Hgl and TGL? Total energy line is basically defined as the line which will give the sum of […]

Why is engineering economics important for engineers?

Why is engineering economics important for engineers? Engineering economics poses numerous benefits because it allows those in industry to make strategic decisions for their companies. These subjects are essential for engineering economics because they provide the foundation for engineers to make good decisions in the business environment. What are the important principles of engineering economics? […]

Why do carbonated drinks go flat?

Why do carbonated drinks go flat? Sodas go flat after being opened and even lose a bit of taste. When you pop the top, the pressure inside the can decreases, causing the CO2 to convert to gas and escape in bubbles . … Would the carbonated drink ever go flat if the bottle remains sealed […]

What is the example of thermoplastic?

What is the example of thermoplastic? Examples of thermoplastic materials are polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyamides, polyesters, and polyurethanes. High-temperature thermoplastics include polyetherether ketones, liquid crystalline polymers, polysulfones, and polyphenylene sulfide. Is acrylic a thermoforming? One of the most useful properties of Plexiglas® acrylic sheet is its thermoformability. Being thermoplastic, it becomes soft and […]

Does a neutron carry a positive charge?

Does a neutron carry a positive charge? Protons have a positive charge. Electrons have a negative charge. The charge on the proton and electron are exactly the same size but opposite. Neutrons have no charge. What is the effect of the neutrons on the charge of an atom? Neutrons do not carry an electrical charge […]

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