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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

Functions of ecosystem?

The ecosystem function has four different categories. These are regulating functions, supporting functions, provisioning functions and cultural functions. Each one plays a different role within the ecosystem.

Why insulated copper wire is used in making solenoid?

If the solenoid wire is not insulated the number of turns will be reduced by the uninsulated wires touching and shorting out the turns.

How do you turn on the traction control?

The location of the traction control switch is dependent upon the make and model of the vehicle. Most vehicles place the traction control switch next to the shifter column.

UNIX may be described as being difficult to use Why?

Traditionally, the UNIX command interface was the only way to communicate within a UNIX system. Today, that is not true, with the graphical interfaces that are available. However, the true power of what you can do within UNIX is still in the command line interface.

The command line interface is not very intuitive, and uses commands that are abbreviated to the point of not necessarily being understandable. Also, system administration tasks in Unix have typically been harder to accomplish because of the amount of background knowledge necessary even to do simple things.

UNIX was developed early on for programmers by programmers, and little thought was given to the end user; as a result, it had a reputation of being difficult to use until you took the time to understand the (admittedly) arcane command line interface.

Why is navigation simpler in a relational data model than in a hierarchical data model?

Actually, Hierarchical model have some disadvantages.

1. If we are at leaf(last table in hierarchy) then we cannot go directly to the another leaf.

2. If we want to go to that another leaf then we have to follow a long path(means we have to access again the intermediate tables).

Due to above disadvantages in Hierarchical model, the navigation in simple in Relational model. Because we can go directly to the another table without accessing the intermediate tables.

What is the half split fault location technique?

half split technique is a fault finding method in which faulty area is compared with one of the similar working area. in hydraulic rig, say if cylinder B is not working, we compare it against another working cylinder, say cylinder A. By comparing we collect data and determine the difference between both working and non working components.

i.e. what is the status of incoming and out going flow in both (working and non working) components?

are both pressurized only when it should?

etc.

AA

Why does your cellphone charge itself without using a charger?

The reason they do that, Is because, You are wasting less energy when it is locked, silent, screen dimmed, Or turned off. That give's it a power serge that needs to be used, So, It turns it into Connetic Energy, that charges your cell-phone. It change's most of your energy back to normal when you turn it on or put everything back to normal. That's mostly it.

Hope this was useful!

---Stuca1---

The advantages and disadvantages all type of power generation system based on the factors cost and fuel availability?

The advantages and disadvantages all type of power generation system based on the factors cost and fuel availability?

How do manufacturers define the size of a 42 or 36 inch television?

Screen size is measured diagonally in inches between opposite corners of the screen.

Why pre emphasis is done after modulation?

No, Pre-emphasis is done before modulation. We need it to do for improving the SNR ratio of the signals of higher frequencies. Actually this boosting of weaker higher frequencies of data signals. (Asked question is a sort of trap question usually asked in viva or interview.... ;) )

How do you keep joints held in place and what tools do you need to do it?

To keep joints held in place, you can use fasteners like screws, bolts, or nails, along with adhesives or wood glue for added stability. Tools necessary for this include a drill or screwdriver for driving in screws, a hammer for nails, and clamps to secure the joint while the adhesive cures. Additionally, a level can help ensure that joints are aligned correctly. For precision, measuring tools like a tape measure or square are also useful.

What lessons have we learned from the space shuttle program about space shuttles?

The main thing learned is that engineers are fallible and can succumb to both political pressure and become complacent about safety hazards when evidence of a problem appears repeatedly but no gross failure of the system happens (until a sudden disaster causes a total loss of the vehicle).

In other words engineers are people like the rest of us.

Will casein stick to steel when hardening?

Yes, casein can stick to steel when hardening, particularly if it is applied as a paint or adhesive. The bonding occurs due to the protein's ability to create a film that adheres to the metal surface. However, the effectiveness of the bond can depend on the surface preparation of the steel and environmental factors like temperature and humidity during the curing process. Properly preparing the steel surface can enhance adhesion.

How do you calculate the maximum weight of a swing from the working load weight?

If a swing has a working load of 300 pounds and the rotation hook has a working load of 1000 pounds, what is the maximum weight of a person that would be allowed on the swing?

Gaelic for Engineering?

Irish is innealtóireacht while Scots Gaelic is einnseanaireachd.

Where can I buy a USB in to 3.5 mm jack Out?

There are USB sound card dongles available on the Web at a variety of places.

What is a blackbox made of?

A blackbox is made of high strength steel and some aluminum.

How do you write a Fibonacci number sequence as a function in assembly language?

The process requires an understanding of the problem, understanding the tool, then the implementation in edit/test cycles.

For example, you would want to understand the task first. Are you required to "write a Fibonacci number sequence" as a series of Fibonacci numbers in a range from A to B (e.g. 0, 1, 1, 2, 3, 5, 8), or are you required to create a tool that can create fib(N) for any argument N? What are the value constraints for N? Is the implementation of fib() required to support any number of N, including very large numbers or even infinity?

The next step would be the selection of a suitable tool and algorithm. For example, one would want to use an assembly language based on its theoretically superior processing speed. (One might want to chose a higher-level programming language, for example in order to support portability of code to other processors.)

The selection of the algorithm is also important. The mathematical definition of the Fibonacci number can be written as fib(N) = fib(N-1) + fib(N-2). These instructions naturally suggest a recursive algorithm, however, recursive algorithms are not suitable for very large arguments due to the resulting recursion depth. Since every recursive algorithm has an iterative equivalent, an iterative approach might be a better solution.

Neither recursive nor iterative "brute force" implementations are suitable for very large arguments N, as the processing time is a function of N itself. Therefore, depending on the exact understanding of the problem, a different algorithm may need inventing.

Once the problem and its preconditions are understood, the algorithm and programming language is chosen, the solution is implemented in edit/test cycles. This process is the same whether an assembly or a higher-level language is chosen.

The exact sequence of the instructions in the chosen language depends on the choice of language, algorithm and the exact understanding of the problem. For assembly languages, the exact sequence of instructions further depend on the choice of one specific assembly language, given that each processor family has its own assembly language.