What does porcelain enamel mean? Porcelain enamel, a thin layer of ceramic or glass applied to a substrate of metal, is used to protect surfaces from chemical attack and physical damage, modify the structural characteristics of the substrate, and improve the appearance of the product. What does vitreous enamel mean? : a fired-on opaque glassy […]
What precautions should be taken when using balancing machines?
What precautions should be taken when using balancing machines? How do you mount and balance tires safely? Inspect your machines. Use protective equipment. Match tires to rims correctly. Examine the wheel closely. Body positioning. Don’t loosen beads before the tire has been fully deflated. Don’t force the issue when mounting. Never remove the hood on […]
What does the compressor do in the vapor compression refrigeration system?
What does the compressor do in the vapor compression refrigeration system? The compressor does the work to raise the pressure, and the expansion valve assures that adequate pressure is retained in the condenser for heat transfer. The vapor compression cycle can be used to cool air, liquid, or cold plates. In what condition does the […]
What is a power supply of a computer?
What is a power supply of a computer? A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the mains voltage. […]
What is the process of making a water bottle?
What benefit did the invention of the compass by the Chinese bring society?
What benefit did the invention of the compass by the Chinese bring society? Also, the magnetic compass allowed people to map out the world as they knew it, since they now knew what direction each country was in. Therefore, the magnetic compass effectively allowed Europeans to navigate across oceans and expand their empire, colonizing and […]
What bad has happened in 2020 so far?
What bad has happened in 2020 so far? The worldwide death toll from COVID-19 exceeds 700,000. Harvey Weinstein was convicted of rape and sexual assault in New York. The 2020 Summer Olympics, which were supposed to take place in Tokyo, are postponed until 2021. A Ukrainian flight crashes in Tehran, Iran, killing all 176 passengers […]
What is the process of fractional distillation?
What is the process of fractional distillation? Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It uses distillation to fractionate. What is the process of cracking? Cracking, in […]
When you cut with a table saw about how far above the material should the blade be?
What are the consequences of drinking alcohol?
What are the consequences of drinking alcohol? Over time, excessive alcohol use can lead to the development of chronic diseases and other serious problems including: High blood pressure, heart disease, stroke, liver disease, and digestive problems. Cancer of the breast, mouth, throat, esophagus, liver, and colon. Which of the following is not caused by alcohol? […]