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 […]
Can light from the sun cause the paper to change color?
Can light from the sun cause the paper to change color? The X-ray light can cause the paper to change color. The ultraviolet light can cause the paper to change color. Any of these types of light can cause the paper to change color, because all light carries energy that can cause materials to change. […]
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?
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?
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 […]
What are the reasons for minor head loss in pipe?
What are the reasons for minor head loss in pipe? Major losses occur due to the friction effect between the moving fluid and the walls of the pipe. The minor losses occur due to any disturbance that might occur to the flow, which is mainly caused by the installed fittings on the pipeline. How are […]
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 […]