What is meant by Schottky defect? A Schottky defect is an excitation of the site occupations in a crystal lattice leading to point defects named after Walter H. In ionic crystals, this defect forms when oppositely charged ions leave their lattice sites and become incorporated for instance at the surface, creating oppositely charged vacancies. What […]
What factors affect lift and drag?
What factors affect lift and drag? Lift and drag also vary directly with the density of the air. Density is affected by several factors: pressure, temperature, and humidity. At an altitude of 18,000 feet, the density of the air has one-half the density of air at sea level. What factors affect drag force? Which are […]
Which cycle is more efficient for electricity generation plant?
Which cycle is more efficient for electricity generation plant? A combined-cycle power plant uses both a gas and a steam turbine together to produce up to 50 percent more electricity from the same fuel than a traditional simple-cycle plant. The waste heat from the gas turbine is routed to the nearby steam turbine, which generates […]
Why do metals typically have larger thermal expansion coefficients than ceramics?
Why do metals typically have larger thermal expansion coefficients than ceramics? In contrast, materials such as stainless steel possess weaker bonds between atoms, resulting in much higher coefficients of thermal expansion in comparison with Fine Ceramics. Why do ceramic materials have small coefficients of expansion? In ceramic materials, the atoms are not free to move […]
Which is correct Please find attached or please find the attached?
Which is correct Please find attached or please find the attached? For example, say “Please, find the attached file you requested yesterday.” When you don’t want to specify any particular file, avoid using “the”. You can simply write, “Please, find attached.” or its abbreviated form: PFA. “Attached” is the correct word for electronic communications. How […]
How do you find the forces in the method of section?
How much entropy is in the universe?
How much entropy is in the universe? The total entropy of the observable universe is correspondingly higher, and is Sobs = 3.1+3.0−1.7 × 10104 k. Will the universe end? If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over […]
What type of lubricant is used on bearing?
What type of lubricant is used on bearing? A lithium-based grease, whose base oil is mineral oil, is commonly used as a lubricant for rolling bearings, as it is compatible with the working surface of the bearing. How are bearings lubricated? The air/oil method of lubrication, also known as the oil-spot method, uses a similar […]
What should not be in business letter?
What should not be in business letter? Which of these should not be present in a business letter? Explanation: A business letter should be free of business or technical jargon or stereotyped expressions which convey nothing. Explanation: There is a need to place the letter on the sheet as per accepted norms. What are the […]
Does multithreading always provide better performance than single-threaded system?
Does multithreading always provide better performance than single-threaded system? Threading is about taking advantage of idle resources to handle more work. If you have no idle resources, multi-threading has no advantages, so the overhead would actually make your overall runtime longer. For example, if you have a collection of tasks to perform and they are […]