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Engineering

Engineering is an art and profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life.

5,839 Questions

Why are Germans so good in engineering?

The Germans and the Swiss generally work with high-quality materials set within modest limitations. This means that they work with only the necessary amount of high quality materials so they manufacture products that are less likely to break and therefore more likely to function at a high standard.

However, this doesn't mean that other countries do not manufacture equally good products. For example, Japan has found ways to produce reliable products, such as cars, cost effectively while maintaining high engineering standards.

In a tank circuit why can be the energy across the inductor and that of the capacitor not be equal?

When an LC tank is excited at the resonant frequency, the energy across each will be equal (but not necessary equal at a given moment in time). If excited at a frequency other than the resonant frequency, the impedance of the inductor (wjL) and capacitor (1/wjC) will not be equal, therefore energy across each will be different.

To whom do engineers communicate the solution?

Engineers find solutions to the problems faced by the society . Once the solution has been devised the engineers communicate it to the laborers and the workers so the implement it on field or on the work stations.

What is the IMA of lever?

the IMA is the ideal mechanical advantage.

Examples of simple gear with idler?

Most rear wheel drive Pick up trucks with manual transmission have an idler to provide reverse.

What is a small piece of semiconducting material on which integrated circuits are etched?

A printed circuit board. abbrev- PCB. A PCB is thin copper attached to a non-conductive material.

No, a printed circuit board is not a semiconducting material. Integrated circuits are created on a substrate, usually silicon or sapphire.

What is the difference of capillary action and root pressure?

rootprreeskjhjjhkjas fjahjnvjeh nbvahibfhu[bvabbvbv]bjbbb/nkjvjkbfbkhbhhhjkjkj.

Why do engineers use models?

Models give a visionary view to the problem at hand and help catching all the system aspects.

Differences between dumpy and tilting level?

in dumpy level the line of sight is perpendicular to vertical axis.But in tilting level the line of sight need not be perpendicular to vertical axis .the instrument is roughly leveled in a tripod stand with respect to bubble tube & thus making the instrument approximately vertical...then it is tilted with a finely pitched tilting screw which tilts the telescope wrt to vertical...it has advantage that due to tilting levelling can be done quickly and accurately!!

What German engineer built a blimp?

Dr Hugo Eckener at lake Constance or Bodensee

Why condensate pot is used?

whenever steam is utilised as heating media, steam condensate is produced.This steam condensatecan be utilsed for steam generation at some other location and needs to be pumped, for pumping you need some intermediate storage of this condensate. For storing it we use condensate pot whose level can be controlled.

What ITP means in engineering terms?

ITP en términos de ingeniería significa '' Plan de Inspección y Prueba "

What is the purpose of anvil?

Blacksmiths use them as a hard sculpting tool for soft and extremely hot metals. Their shape is so that they can bend them easier.

What State the applications that an oscilloscope can be used for measurements?

Eng Nurudeen Abiola

Frequency measurement

voltage measurement

current measurement

phase angel measurement

What happens when you heat a metal pipe?

of course you have a wide range temperature range left unspecified, but generally as far as the physics of any metal (with variations) would indeed expand in both length and width by a small fraction of an inch. the problem often is that when metal heats then cools rapidly it will inevitably crack - Matt

Why do rain drop undergo total internal reflection?

Simple - they don't. TIR occurs when there is no external angle that corresponds to the internal angle. Since the light has to originate outside of the raindrop, and the geometry is the same every time the light crosses the boundary, there is always an external angle corresponding to the internal one.

Anybody who claims otherwise is confusing "*AN* internal reflection" with "total internal reflection."

How do you make plane invisible to the radar?

It is not possible (with today's technology) to make a plane completely invisible, but there are techniques to reduce the radar energy being reflected to the radar aerial. If reduced enough, the aircraft may appear smaller than it is, or even be classified by the system or operator as a non-aircraft. The aim is to reduce the Radar Cross Sectional Area (RCA) of the plane.

This technology is commonly referred to as 'stealth'. Modern stealth aircraft have an RCA much smaller than 1 square metre and in some circumstances can be as low as that of a large bird.



The most noticeable method of reducing RCA is to eliminate right angles and especially internal angles of 90 degrees. This is because energy entering will be reflected straight back the way it came. By using curves and obtuse or acute angles the energy is instead reflected away from the radar source. Use of clean lines and unbroken surfaces also reduces bumps and protrusions which also increase the RCA. By comparing a modern stealth fighter to older aircraft, it is clear that care has been taken to eliminate any feature which would reflect radar energy.


Another less obvious technique is to use radar absorbent paint. This expensive material works best against specific wavelengths of radar and will dramatically reduce the reflected energy. It works by allowing a proportion (about 50%) of the energy to be reflected and the remainder to penetrate. If the paint is exactly 1/4 of a wavelength think (hence the expense!) it will reflect off the inner paint surface and be 'antiphase' as it emerges again. This cancels out much of the radar energy in the same way that ripples in a pond from two pebbles cause patterns of high and low ripples.


Combinations of techniques such as these can reduce the aircraft RCA to that below the capability of most radars to detect at normal range. As the aircraft approached the radar emitter the radar signal will be increased until it is recognisable as an aircraft. However, by avoiding flying close to radars it may be possible to avoid detection at all, or at the least until it is too late to be a problem for the mission.

Why is it called a moon pool?

its called a moon pool because its like a volcanio when a full moon forms it shines in the top and there is water in side so if you get in the water u will turn in to a mermaid or merman only if there is a full moon no excapions only on a full moon its called mako island its in calforina