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Industrial Engineering
Industrial Engineering is the branch of engineering that deals with the creation and management of systems that integrate people and materials and energy in productive ways. An industrial engineer studies industrial productivity and makes and implements recommended changes.
2,298 Questions
Is there required size for a seal weld per AISC?
The required size for a seal weld per AISC is eighteen foot length. AISC also specifies minimum weld size based on the thicknesses of the members joined.
A chlorifer is a hot water tank heated by an external source.
QWERM
What homemade additive can you add to gasoline to get better mileage?
Fuel additives are used to improve an automobile's environmental performance and increase its mileage. Some homemade fuel additives are ethanol and a mixture of acetone, xylene and cycle oil.
What Type of carbon fibers used for aircraft wings?
For Boieng Fiber- carbon fiber or carbon nano tubes
epoxy - kevlar
Airbus
Fiber- carbon fiber
Epoxy - vinyl ester
Answer The MC1458 is a high-performance operational amplifier with high
open-loop gain, internal compensation, high common-mode range
and exceptional temperature stability. The MC1458 is short-circuit
protected. The MC1458/SA1458/MC1558 consists of a pair of 741 operational
amplifiers on a single chip.
The ball mill is widely applied in mineral classification, cement, fireproof materials, glass, pottery, chemical industry and so on. The ball mill can grind all kinds of rocks and grinding materials. There are two ways of grinding: the dry process and the wet process.
A Bourdon Gauge is a pressure indicator, it works with a "C" shaped tube oval in cross section that tries to straighten under pressure. When the tube tries to straighten it pulls on a connecting arm which turns a needle that is against a card that states the pressure. A bourdon gauge lets you know when a stoem is headed your way.It is like a warning tool because it lets you know early so you can prepare for the storm.
What is the relationship between Vickers Hardness and yield strength?
HV = 2.9 * Y Where HV - Vickers hardness Y - Yiekd stress in KG/mm2
What is better a 2-ferrule tube fitting or a 1-ferrule?
I work in this industry. There is really no difference, it all depends on what the end user wants. Someone may tell you that a double ferrule system gives you better leak protection, but it doesn't, it is all about preference. Just a tidbit of info: Many people who know about tube fittings think that swagelok started the industry standard, but tylok's founder, actually was the inventor of the flareless fitting.
Yes, all metals, both pure (element) and alloys, can be melted; though some require large heat inputs at very high temperatures. By contrast the lowest melting point is of a lead-tin-antimony-bismuth mixture called "Wood's Alloy", at about 70ºC.
What is the relationship between boilup ratio and number of contact stages?
The boilup ratio will help determine the bottom operating line of your column. Once you have both your bottom and top operating lines you can step off the number of stages (given the desired compositions at the top and bottom of your column).
What are micromotion study and memomotion study?
Micromotion Study
Micromotion study, which was originated by Frank B. Gilbreth, is one of the most
exacting forms of work analysis available for job improvement. It is an analysis
technique making use of motion pictures (or videotape) taken at a constant and known
speed. The film becomes a permanent record of both the method being used and the
time consumed in doing the work.
Although micromotion study formerly made use of motion pictures, very few companies
today are using them. As indicated earlier, videotape equipment has been developed so
extensively that it has virtually supplanted the use of the motion picture camera. Further
it is so cheap and easy to use that it makes the older approach archaic.
Micromotion study provides a valuable technique for making minute analyses of those
operations that are short in cycle, contain rapid movements, and involve high production
over a long period of time. Thus it is very useful in analyzing operations such as the
sewing of garments, assembly of small parts and similar activities.
Er... you press on it and see. If you can press on the release bar with 90 N of force (basically 9 kg or 20 lb) for 15 seconds without the door opening, it fails. This includes the pressure of the door latch release and any spring/hydraulic door closer. (For the latter, only force to initial travel is an issue, not force to open wide.)
You can often get a statement from a manufacturer, but you can also measure directly: just get a cheap postal scale with enough capacity, turn it on its side, and press with it. Multiply the reading by 9.8 N/kg. That won't be super-accurate, but as long as the measured force is below 90 N with more safety margin than the inaccuracy of your measurement, you've proved it. (Don't forget that the scale will read low, i.e. negative, when turned on its side, so you have to re-zero it or mathematically adjust for the negative starting point of the measurement.)
As a practical matter, most fire door hardware is far enough below the limit that a very crude measurement is sufficient; the fire inspector just presses on it with his or her "calibrated arm" and can tell that there's no need to measure more precisely.
If you're working close to the limit, the NRC probably knows about test procedures.
It is a device that measures the differential pressure between two inputs.
Example:
You have a pressure container where you connect the H-side (high) of the DP-cell. The L-side (low) you leave in the atmosphere (open air). The DP-cell will tell you the pressure in the pressure container relative to atmosphere pressure. Depending on what class the DP-cell is, it will give you feedback with a current signal. Normal in Europe is 4-20 mA, where 4 is lowest and 20 is highest.
English engineer who devised a process for eliminating impurities from pig iron in 1859?
You are in Mr. R's class aren't you?
>__>; You too? It's Henry Bessemer -C.M.
actually this is used in like every AP Euro class... let me guess, you got this on a crossword? a Industrial Revolution crossword (with a 36 by it)
Answer: Bessemer
Plastic deformation of metals above the recrystallization temperature.
What is the difference between a general tolerance and specific tolerance?
when reading a blueprint, a general tolerance would apply for all dimensions that are not individually identified. eg, all tolerances are +\- .030" General tolerances are normally found in the information blocks of the blueprint. If for example a tighter tolerance is required, then a specific tolerance is noted for certain areas of the blueprint. These tolerances are normally found beside the affected area.
Difference between linear and nonlinear data structure?
Linear DS:
1. every item is related to its previous and next time.
2. data is arranged in linear sequence.
3. data items can be traversed in a single run.
4. eg. array, stcks, linked list, queue.
5. implementation is easy
non-linear DS:
1. every item is attached with many other items.
2. data is not arranged in sequence.
3. data cannot be traversed in a single run.
4. eg. tree, graph
5. implementation is difficult.
How did the double action steam engine affect economy?
In a single action steam engine, high pressure steam is introduced into a chamber formed by the cylinder and the piston. The steam entering the cylinder has two jobs to do:
- Push the piston down in the cylinder, which turns the crankshaft, and so provides mechanical energy for powering a locomotive or steamship, or doing other useful work,
- Overcome the frictional loss, mostly of the piston rubbing against the cylinder wall as it is pushed down by the steam and then returned to the top through the inertia of the flywheel. This effort does not provide any useful work and is considered wasted energy.
In a double action steam engine, once the steam in the cylinder has pushed the piston down to the bottom of the stroke, additional steam is introduced at the other end, which pushes the piston back up to the top of the stroke.
The result is that there are two power strokes, but only the same frictional energy loss as in a single action steam engine. In effect, you have cut the frictional loss in half for each power stroke, and this increases the efficiency of the engine, and therefore also increases the fuel economy of the system.
