Category: Engineering

Who is responsible for training workers about the chemicals they work with and their hazards? The Hazard Communication Standard (HCS), 29 CFR 1910.1200 (h), requires all employers to provide information and training to their employees about the hazardous chemicals to which they may be exposed at the time of their initial assignment and whenever a […]

What is the difference between detonation and deflagration? Deflagration and detonation are two ways energy may be released. If the combustion process propagates outward at subsonic speeds (slower than the speed of sound), it’s a deflagration. If the explosion moves outward at supersonic speeds (faster than the speed of sound), it’s a detonation. What is […]

What are the least commonly modified settings in BIOS? Explanation: One of the least commonly modified setting in BIOS is the CPU clock setting. This is because modern processors automatically detect the bus and properly clock speeds for the processors. The most commonly modified setting in the BIOS include the boot device and boot order […]

How does frontend and backend work together? Three components work together simultaneously in the backend (server side) to make the frontend (client side) work as it does: the server, the database, and the application. The database stores all the data in such a manner that it can be easily located and changed whenever necessary. How […]

What are the supplementary cementitious materials? Supplementary cementitious materials such as fly ash, slag and silica fume enable the concrete industry to use hundreds of millions of tons of byproduct materials that would otherwise be landfilled as waste. Furthermore, their use reduces the consumption of portland cement per unit volume of concrete. What are supplementary […]

How would you solve the N queens problem? 1) Start in the leftmost column 2) If all queens are placed return true 3) Try all rows in the current column. Do following for every tried row. a) If the queen can be placed safely in this row then mark this [row, column] as part of […]

Why efficiency of Otto cycle is greater than diesel cycle? 6 Diesel Cycle Although for a given compression ratio the Otto cycle has higher efficiency, because the Diesel engine can be operated to higher compression ratio, the engine can actually have higher efficiency than an Otto cycle when both are operated at compression ratios that […]

Which process is used to make wall thickness more uniform? Injection molding What is the minimum wall thickness? A 0.7752 inch minimum thickness multiplied by a 15 percent tolerance or 115 becomes 0.7752 x 1.15. This equals 0.89147 inches, or almost 0.9 inch minimum pipe wall thickness. If a safety factor of two was required, […]

How do escape artists escape? Escapologists (also classified as escape artists) escape from handcuffs, straitjackets, cages, coffins, steel boxes, barrels, bags, burning buildings, fish-tanks, and other perils, often in combination. What did Harry Houdini escape from? straitjacket What was Harry Houdini most famous trick? Chinese Water Torture Cell a.k.a. the “Houdini Upside Down” A combination […]

What are the characteristics of ideal operational amplifier? An ideal op amp is usually considered to have the following characteristics: Infinite open-loop gain G = vout / v. Infinite input impedance Rin, and so zero input current. Zero input offset voltage. Infinite output voltage range. Infinite bandwidth with zero phase shift and infinite slew rate. […]