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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

How you check 8 pin IC?

That requires some detective work.

If you know where it is in a circuit, you might be able to figure out its function by context (seeing what it's connected to and what it might do).

You might be able to figure out the manufacturer by looking at subtle details of the package size and shape.

If you have the equipment, there are ways to disassemble and reverse engineer the chip and see the circuitry through a microscope to figure out its internal schematic.

When stress stretches an object it is called?

When stress squeezes an object it is compression. When stress stretches an object it is called tension. The process by which the shape of a rock changes because of stress is called deformation.

Is it necessary to use a torque wrench to repair a car?

There are differences in torque wrenches. One among the wrenches is the click-type torque wrench. It is an easy to handle kit. While applying the wrench and when the torque reaches the desired limit, the device automatically"clicks". This wrench could help you with providing the right amount of torque to be applied. Twisting of torque marks the desired torque to be applied.

What is the advantage of a drainage system?

If you don't have proper drainage it will drown the plant and also cause mold and such and rot the roots.

What is the difference between single core and multi core wires?

Single core has one single piece of metal wire, maybe copper or aluminium, with insulation around it. It is not very good if you want the cable to flex and bend as it is more likely to just bend and stay there in the new position. Multiple-strand cable has lots of thin wires and this makes it more flexible and likely to spring back

Why do engineers use the scientific method?

The scientific method is beneficial for a variety of reasons. Some of these are:

  • The steps are clear, so the experiment can always be repeated
  • Experiments are controlled
  • Allows the results and work to speak for itself
  • Has a clear objective and minimizes bias

What is waste water management?

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Automated reservation system?

Is a system for reservation just like in hotels, restaurants, flight reservations to insure your needs.

Why is the suction pipe of vapour compression refrigeration system insulated?

To minimize sweating of the air around the pipe. When the air comes in contact with a cool surface, its water vapor condenses!

How does temperature affect the physical properties of petrol?

An increase in temperature will reduce the density, reduce the viscosity, reduce thermal conductivity, and increase the specific heat capacity.

A decrease in temperature will have the opposite affect.

A bridge is made of what metal?

The material of choice is stainless steel, because of its cost, abundance, strength, and reliability.

What is void main in C programming?

The main function in C serves as the entry point of your application. A C program is not valid without a main function.

There can only be one main function in your program, but you may use a choice of prototypes:

int main (void);

int main (int argc, char* argv[]);

You use the first version when your program has no need for command line arguments (also known as command line switches). The second version passes the full command line in the argv argument as a null-terminated array of null-terminated strings. The argc argument holds the count of strings in argv and is always at least 1 since the program name is part of the command line (stored in argv[0]). Any switches passed to the program will be found in argv[1] through argv[argc-1]. The last argument, argv[argc], is always the null-terminator (a pointer to null).

The return value allows you to return an integer to the host environment. Typically you will return 0 to indicate success and -1 to indicate failure.

The void main (void); prototype is allowed in most implementations of C (but not in C++). This simply indicates no return value is expected. However, the prototype is non-standard and if your program makes use of the exit() function to terminate, your program will return whatever value you pass to the exit() function.

Your implementation of C may also allow additional prototypes, however only the first two shown above are standard across all implementations. For portability, it is best to use one of these at all times.

What is the timetable for first year engineering backlog papers?

You will have to contact your professor or the admissions department to find this out. Some former students may also have the information.

Top 20 richest countries?

GDP (nominal)

In the world:

1. USA

2. China

3. Japan

4. Germany

5. France

6. United Kingdom

7. Brazil

8. Italy

9. Canada

10. India

11. Russia

12. Spain

13. Australia

14. Mexico

15. South Korea

16. Netherlands

17. Turkey

18. Indonesia

19. Switzerland

20. Belgium

In Europe:

1. Germany

2. France

3. United Kingdom

4. Italy

5. Russia

6. Spain

7. Netherlands

8. Turkey

9. Switzerland

10. Belgium

11. Sweden

12. Norway

13. Austria

14. Denmark

15. Greece

16. Finland

17. Portugal

18. Ireland

19. Romania

20. Ukraine

GDP(PPP)

In the world:

1. USA

2. China

3. Japan

4. India

5. Germany

6. Russia

7. United Kingdom

8. Brazil

9. France

10. Italy

11. Mexico

12. South Korea

13. Spain

14. Canada

15. Indonesia

16. Turkey

17. Australia

18. Taiwan

19. Iran

20. Poland

In Europe:

1. Germany

2. Russia

3. United Kingdom

4. France

5. Italy

6. Spain

7. Turkey

8. Poland

9. Netherlands

10. Belgium

11. Sweden

12. Austria

13. Switzerland

14. Greece

15. Ukraine

16. Czech Republic

17. Norway

18. Romania

19. Portugal

20. Denmark

Dark spot on nucleus?

Not sure, but I`d guess it`s the nucleolus.

What are compound pulleys used for?

Compound pulleys are used in a similar manner to a gearbox. You can select the ratio to suit the load and the power source. With the correct pulley combination one man can lift 10 tons from a truck onto a ship without motorised assistance.

Can people with developmental dyslexia go for engineering?

I knew a mechanical engineer to told us he was dyslexic. He worked a bit slowly and checked his work.

How long does it take to make a pair of jeans?

For a regular person to make a pair of jeans it would take at least 8 hours

What is 90 dB plus 90 dB?

90 dB + 90 dB is not 180 dB. Decibels are not on linear scale, they are on a logarithmic scale, which better approximates how humans perceive loudness. You can get around the math by adding 3 decibels for every doubling of values, so 90 dB + 90 dB = 93 dB.

For example:

The sound pressure level of one person in conversational speech is 60dB.

The maximum sound pressure level achieved in an underground railway is 100dB.

If you have two people speaking, 60dB+60dB=63dB. So the achieved SpL is 63dB. It is not 120dB, which is significantly louder than an underground railway, in fact, it is about the SpL of a rock concert.

The maximum theoretical value of sound is 194dB (which probably cant be achieved since it requires a sound-wave to oscillate into negative pressures (in Pascals))

Are phytoplankton producers?

Yes, the are producers and at the 'bottom' of the food web.

Algorithm to delete?

The only way to delete objects in an object oriented programming language (unless they were created in heap memory) is for the object to go out of scope. If the object is declared in the heap, in c++ you would use delete[] ptr; or delete ptr; where ptr is a pointer to your object.