Mechanical Engineering

It depends upon the type of ships. there are ships which are being used and are been used even now for more than 35 years. how ever petrochemical vessels have a lifetime of 12 years,ie all dangerous cargo has 12 years,Air craft carrier has 35 years etc.. jd eby

Modulus is given in pounds per square inch (psi). For steel it is 30,000,000 psi

Belt conveyor are maybe the most ordinarily utilized conveyor type. They are utilized as a part of the food processing business in both the handling and bundling of sustenance items. The smooth constant surface of a belt conveyor is perfect for sustenance dealing with. Belts for sustenance applications must be made of solid, sturdy materials.

£7000000000000000 per gram

Classifications of steam turbines:

According to Principle:

1. Impulse Type

2. Reaction Type.

According to Application:

1. Condensing

2. Non-condensing

Most man- made machines have relatively low efficiency. For instance, a car or aeroplane is very noisy and will get very hot. This noise and heat is wasted energy and makes up a significant proportion of the total energy (fuel) input.

You'll be able to pump twice the volume.

No, even though they both gives energy but they are differ from where they get the energy for us to use. I C energy or Internal Combustion engine is getting the energy from the chemical to turn into a mechanical energy by means of burning the fuel. While closed thermodynamic system is one of the 3 kinds of thermodynamic, can exchange energy as a heat from outside system or from its surroundings, but not matter. Earth is an example of closed thermodynamic energy its getting the source of energy from the sun but no exchanging of mass outside.

Feeler gauges consist of thin slivers of metal which are graduated in thickness, probably from 0.003 ins up to 0.030 ins (ie 3 thou to 30 thou). This is assuming they are calibrated in inches, or they could be in mm. 3 thou would be about 0.075 mm and 30 thou would be 0.75 mm. You just find the appropriate thickness for the gap you have. Start with one thinner than the gap and work up until you find the one that just fits. Don't force the gap by trying to put in one that is too thick.

thermopile

the least count of dial bore guage varries from 0.001 to 0.01mm

thanks & regards

Vishal G. Valvi

Jr. Quality Assurance Engineer

Utcon Engineers Pvt. Ltd.

Bhosari, Pune 411026

The same way that you test the tensile strength of anything - break it in a universal testing machine!

You have to be careful how you hold the rope though - you obviously cannot grip it the way you would grip a metal specimen (since the grips will cut the rope).

Therefore the rope may be locked into special rope-testing grips or tied around a T-bar or pin in a particuar way. As long as the rope breaks n the central "guage length", you have a good result. If it breaks in the region where it is gripped or tied, the result is probably not correct.

The slenderness ratio is the ratio between the height or length of a structural element (such as a column, or strut) and the width or thickness of the element.

For example, if a rectangular column is 6m high, and 400mm by 600mm in cross-section, then its slenderness is 6000/600 = 10 in one direction and 6000/400 = 15 in the other direction.

The higher the slenderness ratio, the more slender the structural element is. How slender a structural element is allowed to be depends upon the material it is made from. Steel can be more slender than concrete, for example.

In structural engineering calculations, the slenderness is often denoted as the element's "effective" length divided by something called the radius of gyration. The radius of gyration is a measure of the average distance of the material from the centroid (centre of gravity) of the element's cross section. This can be calculated as r = (I/A)0.5, where I is the second moment of area, or second moment or inertia, of the cross section and A is the area of the cross section.

The effective length of an element is determined by how it is fixed at its ends. The effective length is the length of the column that will form half a sine wave if it buckles. If it is "pinned", or has hinged ends, the effective length is the true length of the element. If it is a cantilever (fixed at one end but free at the other), the effective length is twice the true length. If it is fully fixed at both ends the effective length is 0.7 times the true length, but this is in reality very difficult to achieve, so often a real structural element is considered to be only nominally fixed and the effective length is taken to be 0.85 times the true length.

A 100 gauge piece of aluminum has a thickness of 0.0010 inches. Gauge is a universal system used to measure the thickness of metal and wire.

A hose is a hollow tube designed to carry fluids from one location to another. Hoses are also sometimes called pipes (the word pipe usually refers to a rigid tube, whereas a hose is usually a flexible one), or more generally tubing. The shape of a hose is usually cylindrical (having a circular cross section).

No. It's a second class lever. A 1st class one has the pivot in the centre.

1. Warren truss
2. King post
3. Queen post
4. Bow string
5. Curved chord
6. Through type
   

1. single acting: actively driven by hydraulic fluid pressure in only one direction, passively returned in the other direction by another force (e.g. springs, gravity)
2. double acting: actively driven hydraulic fluid pressure in both directions

There is many plastic material. All depends on the application of products. You should see the characters of materials and decide material.

I have a list of plastic material with characters introduction. Pls advise me your mail address if you 're interested.

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It is a number that allows the pipe to be traced all the way back to the metal it was made from, important for quality control.