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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
What is the difference between formula and function in Excel?
A formula is statement written by the user to be calculated. Formulas can be as simple or as complex as the user wants. A formula can contain values, references to cells, defined names, and functions.
All formulas must start with the equals sign.
=1+2+3
A function is a piece of code designed to calculate specific values and are used inside formulas. Functions to sum values, calculate a trigonometric cosine, and to calculate the current time are built into excel. Additional functions can be defined using Visual Basic.
Functions are typed alongside parenthesizes, where in the arguments if any are listed in between. To use functions in a formula, for example
=COS(3.14) will return the calculated cosine.
=NOW() returns the current time.
=SUM(1+2+3) *2 will multiply the sum by 2
What rating of capacitor is used on single phase motor?
If a capacitor is directly connected across a motor then the capacitance of the capacitor will be calculated as under.
Q = 0.9 * Sqrt (3) * V * I0.
Here "V" = Supply voltage & I0 = No Load Current of Motor.
AnswerThere is no need to connect capacitors across a three-phase motor.
What are the various applications of computer?
Computers have their application or utility everywhere. We find their applications in almost every sphere of life-particularly in fields where computations are required to be done at a very fast speed and where data is so complicated that the human brain finds it difficult to cope up with.
As you must be aware, computer now-a-days are being used almost in every department to do the work at a greater speed and accuracy. They can keep the record of all the employees and prepare their pay bill in a matter of minutes every month. They can keep automatic checks on the stock of a particular item. Some of the prominent areas of computer applications are:
In Tourism: Hotels use computers to speed up billing and checkout the availability of rooms. So is the case with railways and airline reservations for booking tickets. Architects can display their scale models on a computer and study them from various angles and perspectives. Structural problems can now be solved quickly and
accurately.
In Banks: Banks also have started using computers extensively. Terminals are provided in the branch and the main computer is located centrally. This enables the branches to use the central computer system for information on things such as current balance,deposits, overdrafts, interest charges, etc. MICR encoded cheques can be read and sorted out with a speed of 3000 cheques per minute by computers as compared to hours taken by manual sorting. Electronic funds transfer (EFT) allows a person to transfer funds through computer signals over wires and telephone lines making
the work possible in a very short time.
In Industry: Computers are finding their greatest use in factories and industries of all kinds. They have taken over the work ranging from monotonous and risky jobs like welding to highly complex jobs such as process control. Drills, saws and entire assembly lines can be computerized. Moreover, quality control tests and the manufacturing of products, which require a lot of refinement, are done with the help of computers. Not only this, Thermal Power Plants, Oil refineries and chemical industries fully depend on
computerized control systems because in such industries the lag between two major events may be just a fraction of a second.
In Transportation: Today computers have made it possible for planes to land in foggy and stormy atmosphere also. The aircraft has a variety of sensors, which measure the plane's altitude, position, speed, height and direction. Computer use all this information to keep the plane flying in the right direction. In fact, the Auto-pilot feature has made the work of pilot much easy.
In Education: Computers have proved to be excellent teachers. They can possess the knowledge given to them by the experts and teach you with all the patience in the world. You may like to repeat a lesson hundred times, go ahead, you may get tired but the computer will keep on teaching you. Computer based instructions (CBI) and Computer Aided Learning (CAL) are common tools used for teaching. Computer based encyclopedia such as Britannica provide you enormous amount of information on anything.
In Entertainment: Computers are also great entertainers. Many computer games are available which are like the traditional games like Chess, football, cricket, etc. Dungeons and dragons provide the opportunity to test your memory and ability to think. Other games like Braino and Volcano test your knowledge.
What is the tallest bridge in the UK?
The longest suspension bridge in the UK is the Humber Bridge which has a total length of 2,220m and a span length of 1,140m (making it the fifth largest span for a suspension bridge in the world).
Please see the related links and question.
What are the advantages of the finite element method?
Models Bodies of Complex Shape
- Can Handle General Loading/Boundary Conditions
- Models Bodies Composed of Composite and Multiphase Materials
- Model is Easily Refined for Improved Accuracy by Varying
Element Size and Type
What is one way in which nuclear chemistry is used to diagnose or treat diseases?
Various forms of nuclear medicine are utilized in medical imaging and treatment. NMRI allows for advanced and 3D anatomical imaging. Nuclear medicine also involves interventional therapies such as the use of isotopes to treat cancers.
"Haphazard" in this context means something like "disorganized".
What is the working conditions of ocean engineering?
An oceanographer likely spends most of the time in an office collating data collected. However, time will also be spent on the ocean, perhaps diving, in the pursuit of information.
How do you calculate Lift in aircraft?
Lift is calculated using the following equation:
L = 1/2 p V2ACL
Where:
L = Lift which is typically the weight of the aircraft
p = air density (altitude and temperature effect this variable)
V = velocity of the aircraft (this is the airspeed)
A = wing area (including the section of the wing that is inside the fuselage)
CL = is specific to each aircraft. This coefficient is calculated in a wind tunnel and is typically provided as a graph relative to the angle of attack.
What kind of additive and subtractive processes are used to manufacture actual physical objects?
Additive processes involve adding material to the piece. Subtractive processes involve taking material from the piece. Painting is additive because you add paint. Carving is subtractive because you take away pieces from your original block.
What is the ASTM standard that is equivalent to BS 6319-3?
Carburize (Materials) BS 4360 43C is a structural grade like ASTM A 36 but with guranteed charpy properties:
C .19 max, Si .5 max, Mn 1.5 max
UTS 62,400 psi
Yield Strength depends on thickness but up to 1.5-inch would be 35,000 psi
Charpy impact tested at 0 degrees C (-32 Degrees F)minimum average impact toughness 27 J (20 ft lb)
A junction is formed when two or more roads, pathways, or circuits meet or intersect. In the context of electrical circuits, a junction occurs where multiple components connect, allowing for the flow of current through various paths. Junctions are essential for directing traffic, both in transportation systems and electrical networks, facilitating movement and connectivity. The design and configuration of a junction can significantly impact efficiency and safety in both domains.
How do you find ultimate bending moment of steel beams?
Assuming linear elastic bending with small deformations and planes perpendicular to the neutral axis remain plane after bending, then for a rectangular beam:
Moment = (Yield Stress)*(Second Moment of Area)/(Distance of surface to Neutral Axis)
For Ultimate Bending Moment, assume stress is uniform throughout the beam, and acting through half the distance from surface to neutral axis, then:
Moment = Stress * (Area/2)*(h/4 + h/4)
For a better visualization check out Popov's textbook, Engineering Mechanics of Solids, Chapter 6, Section 6.10
The Verrazano-Narrows bridge connects Brooklyn and Staten Island and is named for Giovanni da Verrazzano. The bridge is constructed from concrete pilings, steel wire cables, iron eyebars, steel girders, and steel towers.
How is a line different from a line segment?
A line is basically a combination of two joined rays pointing in opposite directions. A line has no endpoints and a line segment has two.
<--------------> line
---------------> or <------------ ray
.________. line segment (It's supposed to be a line with dots at the end to signify endpoint)
How do you reset the security code on a Nokia 6030?
You can try 12345,1234,0000 are some default codes for nokia.
If these codes do not work for you,you can get master reset code from Unlocking4free.com for your Nokia 6030 phone.
Where are you getting this specific heat number. With the other numbers there is no cancellation.
What jobs can you have with a degree in engineering?
It depends on what specific field of engineering your degree is in. For instance, you could be a mechanical engineer, a computer engineer or an aerospace engineer. There is nearly always a demand for computer engineers, who tend to make higher salaries.
What are the effects of water quality on water related diseases?
Water related diseases fall into two broad categories.
* The first is water born infectious diseases (cholera, PSA infections etc.) These are directly related to water contaminated with pathogens from sewage. Related diseases caused by larger organisms like amoebae and worms can be considered in the same group. In this case the incidence of disease increases as the amount of contaminated water rises and sources of clean water become limited * The second group is water born diseases caused by toxic contaminants (mercury, other heavy metals, benzene, antibiotics etc) As the levels of these materials increase they pass the "no effect" concentrations and stat to overwhelm the bodies ability to handle them (excrete or metabolize) and sicknes occurs. In some cases the body absorbs the contaminant until toxic levels are reached (e.g. bio accumulation of mercury). In these cases as water quality decreases the incidence of impacts increases.
How does the water purification systems work?
Depending on what kind you get some of them work different. If you get a whole house filter than its gonna be a basic carbon & sediment filtration. If your on city water than that should be the best choice. Though if you want max filtration and if your water is very hard for example: water spots on dishes, on the shower then you might need a water softener which will eliminate that effect.
What are some engineering careers that start with the letter k?
Kinetic Engineer - Kinetic engineering focuses in on types of movement.
What is the voltage of telephone line?
I'd say it wouldn't be -40 volt, but in fact 40 volt. I'm guessing you measured it with a multimeter and had your polarity (positive/negative) mixed up when you placed the leads on the telephone line.
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The nominal voltage between tip and ring on the telephone line is 48 VDC (it is provided by a 24 cell lead acid battery in the central office) but this can be reduced by line drop by as much as 9 VDC depending on how far you are from the central office. Tip is connected to the positive side of the battery and ring is connected to the negative side of the battery. The tip and ring twisted pair is isolated from ground, so either can be used as your multimeter reference as long as you are aware of polarity so the reading of the multimeter will make sense.
What is the weight of 1 cubic meter of soil?
Approximately 2,205.84 pounds.
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Exactly 1,000 kilograms [1 metric ton] at 4*C. (the temperature of maximum density of water). This is equivalent to 2204.62 pounds. This will decrease if the water is heated [or cooled], as the density changes.
What are the Cutting tools on Lathe machine?
Now a days verities of materials are using for making lathe cutting tools. In earlier days Hardened high carbon steelswere used. High Speed Steel (HSS) came next to HCS. Ordinary carbide inserts of different grades came after HSS. Coated carbide inserts of various grades suitable for machining different metals and alloys are predominant now. Ceramic and diamond inserts are the latest cutting tool materials using for the machining of materials having very high hardness.
