Mechanical Engineering

All the machines are related with electrical energy as well as mechanical energy.. generator converts mechanical energy in to electrical energy and motor converts electrical energy into mechanical.. so this two fields are related with each thereof one have good knowledge of mechanical energy as well as electrical energy.. efficiency of the machines can be improved..

Young's modulus is determined experimentally by applying tensile strain (pulling on the ends) to a number of samples of the material under investigation and plotting the strain versus the elongation and taking the slope of the central part of the plot.

Pressure vessel is designed to withstand circumferential load,known as Hoope Stess, but column takes the axial load.

Venal bloodflow is at relatively low pressure, relative to that of the arteries. Because of this, there is always the risk of blood flowing in the opposite direction. This is where valves come in - they prevent the backflow of blood in the veins.

It actually depends on the type of beam it is. If it is a cantilever, the formula would be PL/2 and for a simply supported beam it would be PL/4

One way is to cut a piece of construction paper, staple equal-sized streamers on one side in a row ( ten is a good amount), then form a circle with the paper and staple it. Make at least 3 (6 would be better), equally spaced holes, with a hole-punch. Attach a string to each hole, tie a knot in all the strings at once, so that all the strings are equal in length and attach it to a pole (the taller, the better).

For home units, the compressor is the outside, large box shaped unit that is usually on the side, or behind the house. It takes the freon gas from inside the home compresses it into a liquid, where it will be pumped back inside to the condensor. Compressing gas creates heat, so a fan draws air through the cooling coils on the side of the unit, and blows it out the top. It is important that these coils are kept clear of debris, and should be periodically sprayed off with a hose to knock off dust that may have accumulated.

Now that the freon gas is compressed, it gets pumped inside the house to the condensor, where the pressure falls, allowing the freon to return to a gas. This creates an endothermic reaction, drawing heat from the air. The condensor unit has a series of coils with fins that get very cold. The warm air in the house is blown over these coils, cooling it, and then through the ductwork of the house, and out through the registers.

That completely depends on the circumstance- size of part, whether it is quenched, allowed to cool in air, or kept at elevated temperature deliberately (post-heat), what metal... There are many, many variables.

1) When preparing materials in readiness for the marking out activities you can use things such as engineers blue to enhance the visibility of the lines and positions you mark on the work piece. You should also make sure that the material has not got any previous marks or lines on it so the ones you draw on are more visible and you do not get mixed up with the previous.

Yes - there are many different formulae but the relationship of hardness to tensile or yield strength is at best very approximate. There is a general increase in hardness with increasing strength for most metals - where hardness has been measured by an indentation method such as Brinell.

all most any thing. including removing your pubs

If the pressure in a steam boiler exceeds a set limit, a safety valve is provided that will open to relieve the pressure. This prevents a boiler explosion. When the pressure is being relieved in this way, very hot steam will be release from the valve. The hot steam is extremely dangerous to people, therefore a discharge is provided. This is a pipe or other means of directing the hot steam to a release point outside, away from where people are likely to be.

.036 inches or .913 mm.

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Multiple reasons to have an electrical engineer in a contrsution company 1. He/she can help the company 'bid' or try to get work for the company. The better an electrical engineer the better she can price the construction work to be done for the client. Also if they are really tricky they can find problems with designs (done by the consultant) and not inform the consulting engineering firm until they realize at which time they will be charged a premium price. Example: Design Engineer forgets a receptacle (plug) in a specific area, which would normally cost $120 with labour; however after the dry-wall or the wall masonry is done, the cost would jump to $1000 and the whole time the constructing firm know about it. 2. If the engineer is very knowledgeable they can find ways to save their client money. For example: a design engineer completes a design, but it's costly to build. In return the construction companies' electrical engineer can find a way to save the client money. This usually happens after the job is awarded, in other words if a design is sent out for tender, and is awarded to constructino company ABC, they say it will cost $20,000 for the construction. However after they convince the client of their design, they can save them $1,000, but in reality the construction firm already priced $1500 for this portion of the work. So they only 'save' the client $1000. This doesn't always happen, but more often than not. 3. Lastly sometimes the construction firm needs local support for certain portions of work which need to be addressed immediately. expecially on oil riggs. Etc. Electrical Engineering Consultant

Integral gear centrifugal compressors represent the latest

technology offering significant advantages over outdated,

less efficient and more costly compressor designs. These

advantages are inherent in the centrifugal design and

enhanced even further by Compression Systems' more

than 50 years of centrifugal expertise

ata = atmosphere absolute

These data depends strongly on the chemical composition.

For gasoline: the freezing point is from -40 0C to -60 0C

For Diesel fuel: the freezing point is from -6 0C to -20 0C

Yes, which is why most machine tool castings are made of cast iron.

There are different amounts of money that different rocket scientists will get. A rocket scientist who has made major discoveries will make more than one who is new.

Fan coil units don't have inherent static pressures, but it has to overcome the static pressures when it will be ducted to a system. Static pressure and pressure losses however can be determined accordingly in ducts. The designer sizes up the ducts to overcomes this losses and give the fan's output to the point of application sizing the duct to overcome frictional losses as much as it could to meet the space requirements cooling load. This value is the amount of resistance the fan will be able to overcome within the system it is ducted to and still be able to provide the designed air flow. For example if your fan coil unit is ducted on the supply side and the total frictional resistance of the ductwork and diffuser is below that of the fan coil units static pressure you won't have a problem. If on the other hand, the frictional resistance is greater, you won't see the design air flow at the diffuser. In general you can calculate a system's resistance with the following rules of thumb: 0.1"/100ft of duct, 0.1" per elbow, 0.1" at the diffuser. The fan will probably rated between 0.3" & 0.7" of water gauge.

strength of material refers to the ability of a material to withstand an applied stress without failure.the material"s strength is dependent on its microstructure.Strength is considered in terms of compresive strength, tensile strength, shear strength,namely the limit states of this strength.The term of strength of materials most often refers to various methods of calculating stesses in structural members, such as beams,columns and shafts.

I found a web site that explains how to do it:

(1st link)

It seems to make sense, but I have not tried it yet.

That is for single phase induction motor

here is for three phase motor

(2nd link)

I tested both links and it works perfectly.

it is an old machine.It can be ised for various operations like turning,taper turning,knurling,slotting,facing,threading etc. But it can be used mostly only for cylindrical jobs. you can find it in many small workshops.