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Computer Aided Design
Computer Aided Design (CAD) is the act of using computers to design an object. CAD techniques follow standard engineering design and drafting procedures, but use a computer to help speed up the process.
1,069 Questions
How many years of college does it take to be an aerospace engineer?
A bachelor's degree in most areas can require between 124 to 128 college credits particular to a specific program of study. This would be based on a college or university that operates on a regular two semester academic year which is the most common. For institutions that operate on a tri-semester or quarter-semester it would be quite different. That being said, the Bachelor's degree - in most cases - is designed as a four year program of study, provided the student is full-time and follows their chosen program of study as prescribed by the college or university, and also provided the individual does not require prerequisite or developmental coursework as a result of basic skills testing. The minimum credit load for a full-time student is no less than 12 credits per semester. However, to complete the degree within the four years, a credit load of approximately 15 to 18 credits is recommended. For individuals who work or who have other responsibilities that would prohibit them from attending full-time, completion of the degree may take twice as long. Still, some of this time can be cut down by attending summer sessions and/or interim sessions. In addition, the bachelors and associate degrees are referred to as undergraduate degrees while the masters and doctorate degrees referred to as graduate degrees.
Characteristics of a good computer program?
The following are the characteristics of a programming language
1. Readability: A good high-level language will allow programs to be written in some ways that resemble a quite-English description of the underlying algorithms. If care is taken, the coding may be done in a way that is essentially self-documenting.
2. Portability: High-level languages, being essentially machine independent, should be able to develop portable software.
3. Generality: Most high-level languages allow the writing of a wide variety of programs, thus relieving the programmer of the need to become expert in many diverse languages.
4. Brevity: Language should have the ability to implement the algorithm with less amount of code. Programs expressed in high-level languages are often considerably shorter than their low-level equivalents.
5. Error checking: Being human, a programmer is likely to make many mistakes in the development of a computer program. Many high-level languages enforce a great deal of error checking both at compile-time and at run-time.
6. Cost: The ultimate cost of a programming language is a function of many of its characteristics.
7. Familiar notation: A language should have familiar notation, so it can be understood by most of the programmers.
8. Quick translation: It should admit quick translation.
9. Efficiency: It should permit the generation of efficient object code.
10. Modularity: It is desirable that programs can be developed in the language as a collection of separately compiled modules, with appropriate mechanisms for ensuring self-consistency between these modules.
11. Widely available: Language should be widely available and it should be possible to provide translators for all the major machines and for all the major operating systems.
What is the unit weight of steel?
Steel is very strong. Our society is built of concrete and steel. The world as we know it would not exist without steel. Are there any military aircraft carriers that are not built of steel? But there are some lighter materials out there. What that means is that if you use aluminum to make, say, a seatpost for a bicycle, you'll have to make a thicker one out of aluminum to make it as strong as a steel one, but the aluminum one will be lighter while being as strong as the steel one. There are always trade offs when designing and engineering things and considering what metal to use.
Think about the bottom bracket on a bike with a 3-piece crank set. The axle is steel, or maybe titanium (same strength, but less weight - and more $'s!). Loads are so high here that this critical component is not made of aluminum 'cause it isn't tough enough to handle the stresses put on the part. And steel is the metal of choice for ball and roller bearings, particularly ones that take lots of abuse. Ceramics and carbide are harder, but they're more brittle, and can shatter under severe loading. It is most unusual to see bearings made out of something other than steel.
There are a couple of ways of measuring the strength of a metal, but the numbers don't make sense unless you compare one metal to another. Additionally, steel comes in many different alloy forms, and their characteristics will vary. Throw in the different techniques used to harden or otherwise heat treat the steel and you'll be here all day talking about how strong steel is. Yield strength and tensile strength of steel are, in general, pretty high, though. Steel is tough and strong.
Advantages of file organization?
File organization is the methodology which is applied to structured computer files. Files contain computer records which can be documents or information which is stored in a certain way for later retrieval.
cad stands for computer aided design bet u new =]) and cam is as u can guess.... its generally used to build things before you do like to test structures to see if they are stable that king of thing
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Actually a CAD program is used to design anything from a simple part to a complex assembly. It is also used to generate a solid model of the part in question. When you finish with the design work the CAM program will take the part and this is where you generate the tool paths for cutting the part on a CNC machine. Once the tool paths are completed the CAM program will then run the tool paths through a translater known as a post processor which interpolates the tool paths into actual code the CNC machine can understand. With the material loaded into the CNC machine (with aluminum, steel, plastic, etc) the machine operator then starts the process and when completed you will either have a completed part or a completed component of a more complex assembly.
Which winding is characterized by a large number of turns of thin wire?
shunt field winding are made with many turn of small wire.
What is the differences between electronic and digital textbooks?
eBooks are still "published" by publishing companies; while electronic references are just things like online encyclopedias.
What supply voltage does a computer need?
It all depends on the machine PSU(Power Supply Unit), usually 80v-150v or as I have constructed before a 20v computer so it's the same as saying 'How long is a piece of string?'-
The Computer power supply takes in the 120-240 volts coming from the A/C outlet and reduces it to 18 volts D.C. to run the System board and peripheral's in the case, i.e. DVD ROM, CD ROM, HDD, Graphics card and CPU fan. Your monitor as well runs on 18 V.D.C. which is again reduced from the 120 - 240 volts A.C. through the power block, (transformer).
a giraffe ecosystem is a bunch of giraffes living in one place with elephants and lions and lots of grass an trees with lots of other animals.
Difference between analog simulator and digital simulator?
The big difference is inputs and outputs. Digital ICs expect high/low true/false inputs and outputs. Analog ICs take any inputs, and produce outputs of any level. For example, an audio amplifier is an analog IC. It takes an analog input (sound), and produces an analog output (louder sound). A ripple counter is an example of a digital IC. It takes a digital input (clock pulses), and produces a number of digital outputs (the digital outputs of the flip flops, collectively representing a number in binary).
Is civil engineering the same as structural engineering?
Civil engineering covers a broader spectrum. Civil engineering students study Structural engineering, water engineering, Geotechnical engineering (soil mechanics) and Traffic and Transport engineering. With a civil engineering degree, graduates have the opportunity to and are qualified to work in any of the above fields, or they can persue further studies in one particular area, and therefore obtain more thorough and specific qualification in that area, such as structural engineering.
A full adder has three inputs - A, B, and CarryIn from the prior stage. It generates a Result and a Carryout with the truth table...
ABC-RC
000-00
001-10
010-10
011-01
100-10
101-01
110-01
111-11
The adder can be a ripple adder, in which the propogation delay depends on the carry "rippling" through the logic, or it can be a look-ahead-carry type, which has constant propagation delay time, at the expense of more logic.
How must the two transistor junction be biased proper transistor amplifier operation?
A: Actually it is only one transistor required for amplification the other junction can be a diode. As current Begin to flow it causes a bias across one junction which is opposite biasing for the other, A good differential amplifier will have those junction virtually at the same point with a very good current source because any mismatched will cause and output without any input. It is called voltage offset on the other end if the feedback current is very small it will also produce an output voltage offset known as current offset or basically errors
How do you design a half-adder using NOR gate?
Use 4 NOR gates.
For the 1st NOR gate, inputs should be x' and y
For the 2nd NOR gate,inputs should be y' and x
The outputs of NOR 1 and NOR 2 are taken as inputs of NOR gate 3
The output of NOR 3 is the complemented form of the output required, so, just complement the output of NOR gate 3 with another NOR gate and Viola!, you have your HALF ADDER OUTPUT
PS:I have used a double rail logic, where both x:x' and y:y' are available
Difference between positioning and pointing computer devices?
pointing device like mouse because by mouse we can perform operations graphically. and positioning devices like keyboard.....
Answer:- A sorting algorithm that works by first organizing the data to be sorted into a special type of binary tree called a heap. The heap itself has, by definition, the largest value at the top of the tree, so the heap sort algorithm must also reverse the order. It does this with the following steps:
1. Remove the topmost item (the largest) and replace it with the rightmost leaf. The topmost item is stored in an array.
2. Re-establish the heap.
3. Repeat steps 1 and 2 until there are no more items left in the heap.
The sorted elements are now stored in an array.
A heap sort is especially efficient for data that is already stored in a binary tree. In most cases, however, the quick sort algorithm is more efficient.
GOURAV KHARE (CHANDIGARH)
gouravsonu89@gmail.com
CAD has many advantages over drawings, but drawings are still very important.
With CAD it is easy to make changes quickly as the design progresses. You can see in a 3D environment what the part will look like more easily. The model information can be sent to a CAM application or to vendors. You can get mass analysis information with a 3D Solid package. You can, depending on what package you use, put into the model Programming, that will ask for input information and get an updated model based on what you input. Again, depending on the CAD package you are using, you can make multiple parts in the generic part, and get different sizes of a similar part.
You can get drawings from the CAD model, and if changes are made the drawing(s) will update accordingly.
What is the full meaning of spss the answer should be related to computer?
SPSS(originally, Statistical Package for the Social Sciences, later modified to read Statistical Product and Service Solutions) was the first application program written to that the non-programmer user could enter data and specify the processing of the data.
What are the benefits of using automated techniques for manufacturing electric circuits?
I high degree of precision, accuracy and speed as well as reduced waste due to manufacturing errors.
What are the benefits of CYMK Color?
There are 2 benefits of CMYK colors:
- You can preview your work to see how it will look like when printed (preview is very close not exact)
- Files with CMYK colors are ready for professional offset printing.
