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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 is chain dimensioning?

It show dimension of given dig. Ex. length meter etc.

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chain dimensioning as opposed to datum dimensioning.

chain dimensioning:

4 holes in line on a drawing, first hole position dimensioned from the edge,

remainder dimensioned from the centre of the previous hole.

datum dimensioning:

all holes dimensioned from the edge.

the cumulative tolerance build up on the chain dimensioning allows for greater overall tolerance build up.

What is the difference between alternators and dynamos?

Alternators produce AC, which is rectified by diodes if DC is needed. Dynamos produce DC by using a commutator.

Where do you attach the snapper arm to a mousetrap car?

The snapper arm, is the long thin stick thing, right? Ok then. You attach that snapper arm, to the little semi-curved rectangle, the small one. So when you pull the snapper arm across the mousetrap, it hits it. You just slide it in there, with the more hook part facing up. But you have to kind release the bar you pulled down, just slightly so that the snapper arm will stay in place.

What is the role of engineers in society?

1. Research- searches for new knowledge and the practical application for the new knowledge.

2. Development - produces a working model based on newly discovered idea or working concept and new theory to demonstrate the workability of a new idea.

3. Designing - transforms a model into a full sized and improve product for implementation and mass production.

4. manufacturing/ production - translates design into a physical product for mass production.

5. Construction - counter-part of manufacturer in the construction industry.

6. Operations

7. Testing

8. Consulting

9. Training......etc

bwarutere@gmail.com.

Engineering student.

How does a raft float?

A raft is very buoyant, and displaces very little water, the material it is made from is lighter than water, which makes them float very well.

How you can calcine the kaolin?

By heating kaolin below its meltig point we can have calcination of kaolin.

What types of engineers are there?

there are many types of engineer such as mechnical,civil,electronics ,electrical ,IT,computer ,aeronautics ,biomedical,telecommunication etc

What is an equivalent to Shell livona grease?

Shell Rhodina EP it is an equivalent to Shell Livona. Currently Rhodina EP out of production.

What is different between torque wrench and impact wrench?

There's a world of difference. A torque wrench is a hand tool used to tighten fasteners to a preset torque specification. An impact wrench is a power tool which uses power actuated hammers to tighten a fastener for high torque applications.

Why not build cars that can run on alcohol then you could make your own fuel?

From an auto manufacturing scale it seems like it would be a major risk to the major auto manufactures. While the extensive infrastructure exists for gasoline powered vehicles the same cannot be said for pure alcohol run vehicles. So it is a catch 22 the infrastructure (the production, refining, and distribution) for alcohol run vehicles doesn't exist because alcohol run vehicles aren't really produced on a large scale, and they won't be produced on a large scale because the fuel infrastructure is non existent. So the technology exists, however the demand and availability to refuel make it undesirable for auto manufacturers to produce them.

Why does the moon move away from the earth each year when the earths gravity was supposed to pull the moon back?

This one's slightly complicated, so bear with me! I find diagrams help a lot, so since I can't put them in here, get a pencil and paper out and see if you can sketch what's going on in steps 1-4 if it helps you understand.

1) The Moon's gravity causes tides on Earth. In theory, the tidal bulge (where the water piles up) should be directly under the Moon.

2) However, Earth is spinning, which carries the tidal bulge forward a bit. So in reality, the tidal bulge is slightly ahead of the Moon.

3) The tidal bulge has a very small gravitational pull of its own, which pulls the Moon forwards in its orbit. This causes the Moon to speed up.

4) Newton's laws show that anything in an orbit that speeds up will move out higher into a bigger orbit, so the Moon gradually moves away.

This effect isn't much, only about 3cm a year - that's about the same speed the plates drift across the Earth, or that your fingernails grow. However, it does mean that when the Moon formed, around 4.6 billion years ago, it was 20 times closer to Earth than it is now!

This has even more implications, however:

5) At the same time as the bulge pulls the Moon forward and speeds it up, the Moon pulls the tidal bulge backwards, and slows it down. Friction between the ocean and the Earth beneath causes the Earth's rotation to slow down, too.

So in effect, energy is being transferred from Earth to the Moon. Earth slows down, the Moon speeds up, and moves further away.

What is era in computer?

We are currently in Fourth generation Era(1971 - Today)

What is a geometric constraint?

It is a non-numerical relationships between the parts of a geometric figure. Examples include parallelism, perpendicularity, and concentricity.

What is teletraffic engineering?

Teletraffic engineering is the application of traffic engineering theory to telecommunications.

Why is there no reduction in the capacity of wire rope sling when the flemish eye is forced to bend around a pin that does not allow for a 251 Dd ratio?

I think one reason why nobody has answered this question yet is that it should read 25:1 instead of 251 and D/d instead of Dd. But here is my answer: On the one side of the sleeve, you pull with one rope fall. On the other side the load is taken by two rope falls. This means that in the rope section where the bending and the bearing pressure on the pin occurs you can reduce the capacity of the rope by almost 50% before the flemish eye as a whole will have a capacity of less than 100%. For more reading, look at my website: www.ropetechnology.com under rope end connections.

Do all scientist work together in lab or individually?

depends..... if they want equipment and knowledge to see if its accurate ... But mostly dont

How hot can a soldering iron get?

Hot enough to melt solder onto electrical connections, and the skin off your finger.

Euan Russells answer: it can reach approximately 250 degrees, that is hot enough to burn your finger and possibly even leave a scar, so be careful and watch out!

What is terotechnology in maintenance engineering?

it is a definite question in ptu exam-rupinder singh khalsa GNE wale

What is GRIP CERP?

GRIP CERP is an acronym for a problem solving method. It stands for Goal, Research, Ideation, Plan, Create, Evaluate, Refine, and Present. This method was created by the Magnet High School Freshman Technology Teacher in Union County, NJ.