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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 devices use electromagnetism?
Many electrical and electronic devices use electromagnets, including telephones, sound speakers, maglev trains, junkyard cranes, and doorbells.
Electric motors create an electromagnetic field around a permanent magnet, as do the generators used to create electric power.
Is it true that if you are good at math you will fail chemistry physics and engineering?
The short answer is no. Physics, Chemistry and Engineering are nothing but applying math to the real world. So if you are good at math, you will likely do well. Writing becomes important with things like lab reports in school. In the real world, if you are going into one of these disciplines, writing may become important if you need to put together a technical document or wish to publish a paper on something that you are researching.
What is the chemical equation for the complete combustion of 2-methylbutane?
I get
2C6H14+19O2------->12CO2+14H2O
Describe the types of engineering drawings used and how they interrelate?
We use wiring diagrams, plant layout diagrams, and hydraulic power diagrams. They all interrelate because most tasks will need consideration to all of these things, ie: when working on a piece of machinery you would need to know where it is, what else is in the vicinity that may present problems, what you may need to isolate and consider potential stored energy.
What are the highest paid engineering fields?
Chemical Engineering pays the highest salaries coming out of University, but if one decides to do Industrial/Management Engineering and tries to get their MBA, they are seeing a six figure salary with ease.
What are the required knowledge and skills to pursue the full range of engineering?
Civil Engineer is an engineering professional who specializes in the design and construction of buildings and structures. They are involved with planning the design for structures and supervising the project while it is under construction. According to the U.S. Bureau of Labor Statistics, www.bls.gov, some of the structures they specialize in are roads, buildings, airports, tunnels, dams, bridges, and water and sewage systems. you can make up to (30.00 per hour) the acerage income in 61,000 to 120,000
What is famous company name German electronics and engineering company?
- Engineering (cars, trucks, etc)
- Chemicals
- Pharmaceuticals
void main()
{
int a[10][10],b[10][10],c[10][10],i,j,k,m,n,p,q;
printf("Enter The Rows And Cloumns And Of The First Matrix:");
scanf("%d %d",&m,&n);
printf("\nEnter The Rows And Cloumns And Of The Second Matrix:");
scanf("%d %d",&p,&q);
printf("\nEnter Elements Of The First Matrix:\n");
for(i=0;i< m;i++)
{
for(j=0;j< n;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("\nEnter Elements Of The Second Matrix:\n");
for(i=0;i< p;i++) {
for(j=0;j< q;j++)
scanf("%d",&b[i][j]);
}
printf("The First Matrix Is:\n"); /* Print the first matrix */
for(i=0;i< m;i++) {
for(j=0;j< n;j++)
printf(" %d ",a[i][j]);
printf("\n");
}
printf("The Second Matrix Is:\n"); /* Print the second matrix */
for(i=0;i< p;i++) {
for(j=0;j< q;j++)
printf(" %d ",b[i][j]);
printf("\n");
}
if(n!=p) {
printf("Aborting./nMultiplication Of The Above Matrices Not Possible.");
exit(0);
}
else {
for(i=0;i< m;i++) {
for(j=0;j< q;j++) {
c[i][j] = 0;
for(k=0;k< n;k++) {
c[i][j] = c[i][j] + a[i][k] * b[k][j];
}
}
}
printf("\nThe Product Of The Two Matrices Is:\n\n");
for(i=0;i< m;i++) {
for(j=0;j< q;j++) {
printf(" %d ",c[i][j]);
}
printf("\n");
}
}
return 0;
}
-----------------------------------------------------">-----------------------------------------------------The above code is not the solution of Matrix multiplication using pointers.
the following code is absolutely correct.
void main()
{int *a,*b,*c,row1,col1,row2,col2;
clrscr();
printf("enter rows of 1at matrix");
scanf("%d",&row1);
printf("enter columns of 1at matrix");
scanf("%d",&col1);
printf("enter rows of 2nd matrix");
scanf("%d",&row2);
printf("enter columns of 2nd matrix");
scanf("%d",&col2);
if(col1!=row2)
{
printf("\nsorry\n");
}
else
{
a = (int *) malloc(row1*col1 * 2);
b = (int *) malloc(row2*col2 * 2);
c = (int *) malloc(col1*row2 * 2);
clrscr();
printf("enter 1st matrix \n");
insert(a,row1,col1);
getch();
clrscr();
printf("enter 2st matrix \n");
insert(b,row2,col2);
getch();
clrscr();
printf("1st matrix is\n");
display(a,row1,col1);
printf("\n2nd matrix is\n");
display(b,row2,col2);
prod(a,b,c,row1,col2);
printf("\nafter multiplication \n\n\n");
display(c,row1,col2);
}
getch();
}
insert(int *q,int r,int c)
{int i,j;
for(i=0;i { for(j=0;j { printf("\nEnter [%d][%d] element-- ",i,j); scanf("%d",(q+i*c+j)); } } } display(int *q,int r,int c) {int i,j; for(i=0;i { printf("\n"); for(j=0;j { printf("%d\t",*(q+i*c+j)); } } } prod(int *p,int *q,int *z,int r1,int c2) {int i,j,k; for(i=0;i { for(j=0;j { *(z+i*c2+j)=0; for(k=0;k { *(z+i*c2+j)+=*(p+k*2+j)*(*(q+i*c2+k)); } } } } //Designed by Asjad Farrukh.......
What is HRC in rockwell testing machine?
HRC stands for Hardness Rockwell C scale. There are different scales; C is probably the most common for hardened materials. See the related link for more information.
What does dependability mean in the systems engineering industry?
-Systems that are unreliable, unsafe or insecure are often rejected by their users
-System failure costs may be very high.
-Untrustworthy systems may cause information loss with a high consequent recovery cost.
What are idler gears and why they are used in the gear train?
a gear in Ur gear box witch allows for a means of reverse
Isolation amplifier are good to reduce common mode noise interference in measurement's, breaking earth loops, isolate signals fx. from sensor to computer, etc.
Isolation amplifiers have application in many fields like:
- R&D and other professional laboratory
- Education
- Field measurements
- ECG, EEG & EMG measurements
Example of a classic isolation amplifier : http://www.h-instruments.com/Isolation_Amplifier__ISO-10___01Hz_to_100KHz/p484050_1774436.aspx
The following information comes from Witold Rybczynski's book: One Good Turn: A Natural History of the Screwdriver and the Screw. ISBN 0-684-86729-X
The threading of the screw was invented by Archimedes (b.~287 BC, d.~212 BC) to create the water screw, used for lifting water for irrigation. This was the first human use of the mechanical helix.
The earliest published evidence found by Rybczynski of screws as we know them, threaded, with heads shaped for driving by a tool, and used to fix two work pieces together, is in a manuscript known as The Mediaeval Housebook, thought to be written in southern Germany between 1475 and 1490. This manuscript shows leg irons and manacles fastened with slotted screws.
Screws, while being difficult to manufacture relative to nails and rivets, have a strong holding capacity even in thin work pieces, and can easily be removed and reused without damage to them or the pieces they fix together.
What is the difference between volumetric analysis and gravimetric analysis?
Volumetric analysis or titration is a common laboratory method of chemical analysis which can be used to determine the concentration of a known reactant; volumetry is a quantitative method of analysis.
Qualitative analysis is used to separate and detect elements, functional groups, molecules etc. in a sample substance, without specifying concentration.
What 6 digit number is a multiple of six?
999984
Another perspective:The above answer is, of course nonsense. since you only need to multiply 6X8, then anything LARGER than that, which is again multiplied by either 6 or 8 or both, becomes the next multiple. As there is no upper limit, you can keep going, making the question itself, nonsense. There is no "largest" number of any kind.May be difficult to customize
Initial investment cost is high
It takes long time to established the system
# it should comply with the available system
Why are blood smears made with a feathered edge?
When a patient needs certain blood work done for testing of potential conditions, one way of testing the blood is by doing a blood smear. A blood smear is done by doing a finger prick, extracting a drop of blood, and placing the drop of blood on a glass laboratory microscope plate. Once the drop of blood is on the glass plate, a separate glass plate is used to spread the drop of blood out. It is done by "smearing" the blood across the bottom plate. The desired and only lab-accepted "smear" results in a feathering of the blood, or a increasingly thinning of the amount of blood across the plate, in turn creating a feathered appearance of the blood on the plate. It helps the lab chemists look at the right amount of blood for determining the results of the blood test.
What device or instrument is used to measure air pressure?
If you're asking about a tool to measure the air pressure in a car tire, that is called a pressure guage.
If you're asking about a scientific instrument to measure atmospheric air pressure, it is called a barometer.
How do you make a airsoft plane?
To make an RC airplane capable for airsoft combat you would need an airsoft machine gun and an RC plane. you would need to find a way to trigger the gun remotely and then mount it to the plane. If you are technicly inclined you could modify the plane to use its radio controll to fire the gun, I would not advise just attaching a gun to a plane because it would be to heavy but taking it apart and mounting the barrel and the motor on the plane.
What is a bus in a microprocessor?
A bus consists of wires which is used to transfer data either in serial or parallel transmission.
