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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 are the uses of tissue engineering?

1) To create the product to improve tissue function or heal tissue defects.

2) To replace damaged or diseased tissue.

What is satellite surveying?

Satellite surveying is a form of land survey that uses location information provided by the GPS satellite system to track the location of each reference point.

What is the time complexity of adding three matrices of size NXN cell-by-cell?

O(N^2)..

Explanation :

For this question its going to use 2 for loop;

so it vil be executed n^2 time,

Ex:

n=5; then that vil be executed 25 time;

So answer is O(N^2)

What is difference between Earned Value and VOWD?

Earned value is the physical percent complete x the approved budget. Value of work done is the percent complete x the estimate at completion. VOWD is used as an accrual mechanism which is dependent on the forecast - thus the figure will be adjusted upon receiving an invoice/actual being realised, earned value is a physical percent complete represented in terms of the budget applied universally and is absolute.

What are the most buoyant materials?

The most buoyant material is a material China discovered made out of metal(s).

If you want more info go to google and search up the same question and when you see Super Buoyant Material can hold up a Horse click on it and YEAH you found what you were looking for!

What is span of an instrument?

it is defined as difference between upper and lower range values. eg if range of pressure sensor is 2 to 10 bar then span will be 10-2= 8 bar

What is the world's largest wheel tractor earth moving scraper?

The world's largest construction scraper is the Caterpillar 657G Wheel Tractor Scraper. It is longer than some family homes.

How do we write an autobiography of a non living thing?

find info on that thing , cut out major points and frame them like its life journey

Why askerals not used as transformer or capacitor insulation?

because they decompose easily giving out toxic gases.............

Answer

They are cancer-causing.

What does A992Fy50 steel mean?

From wiki

ASTM A992 steel is a structural steel alloy often used in the USA for steel wide-flange beams (previously known as I-beams). Like other carbon steels, the density of ASTM A992 steel is approximately 7850 kg/m3. ASTM A992 steel has the following minimum mechanical properties, according to ASTM specification A992/A992M. Tensile yield strength, 345 MPa (50 ksi); tensile ultimate strength, 450 MPa (65 ksi); strain to rupture (sometimes called elongation) in a 200-mm-long test specimen, 18 %; strain to rupture in a 50-mm-long test specimen, 21 %.

ASTM A992 is the industry standard for all structural wide-flange beams.

From the American Institute of Steel Construction: "ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) is the preferred material specification for wide-flange shapes, having replaced ASTM A36 and A572 grade 50. There are a couple of noteworthy enhancements with ASTM A992. Material ductility is well defined since a maximum yield-to-tensile strength ratio of 0.85 is specified. Additionally, weldability is improved since a maximum carbon equivalent value of 0.45 (0.47 for Group 4 and 5 shapes) is required. ASTM A992 is written to cover all hot-rolled shapes.

Is gear cycle better or normal?

gear cycles are better than normal cycles because gear cycles are comfotable for riding as compared to normal cycles

What does for reference only mean on an engineering drawing?

It means you can't look at it or you'll go catatonic

Cute.

Actually, it means that the entity that is being "referenced", usually a dimension, should NOT be inspected. It might be an overall length of the part. This might be a "cut length" for the machinist where the actual required dimension is shown elsewhere on the drawing.

How do you use center punches?

A centre punch is just like a hard, thick nail. If you put it against metal and hit it with a hammer you get a little dot, a small pit with a raised edge. It's useful if you're drilling a hole and want to control where it goes. You put the punch where the centre of the hole is supposed to be and then the raised ridges will help center the drill.

What are the advantages of Daniel cell?

It is free of local action, because its negative terminal, the zinc rod is amalgamated.

What is theoretical engineering?

Speaking as a young, self taught software engineer, Googling the issue it seems that there is no straight answer yet. Lots of people shoot the idea down as it being physics but that isn't really true since:

  1. Physics is mostly about studying how the world works, not getting the most out of it
  2. Genetic engineering, highway engineering, software engineering, social engineering etc... All have little to no direct use of "pure" physics to my knowledge.

Personally I think that when theoretical engineering is defined it will have a general thinking process that goes as follows:

  • We have this starting point and this desired outcome. The relationship can be explained by this piece of notation that looks like maths but isn't.
  • We will need components that follow these not exactly mathematical behaviors.
  • And we'll combine them as described here.

How can you tell how much weight a jack can lift?

Depends on the type and how big.

Some jacks can carry up to 1,000 lbs.

It all depends on the size and quality my friend.

Why Indian temples are designed in a cone shaped way?

its such to maximize the amount of cosmic energy that comes in temple..

learn about cosmic energy on youtube

it is the basic energy that we "spend" to do all our tasks spiritual or physical

also to collect cosmic energy ,,is the basic reason why our body needs sleep

How can thermocouple measure the temperature?

Thermocouples are two junctions of two dissimilar metal conductors. One junction is the sensing junction and the other is the reference junction. The voltage between the two junctions depends on the temperature difference between the junctions (Seebeck effect). The voltage can be measured and the temperature difference determined based on known readings of the voltage produced by the metals. If the temperature of the reference junction is known, then the temperature of the sensing junction can be calculated.

What happens when you heat a metal pipe?

of course you have a wide range temperature range left unspecified, but generally as far as the physics of any metal (with variations) would indeed expand in both length and width by a small fraction of an inch. the problem often is that when metal heats then cools rapidly it will inevitably crack - Matt