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Mechanical Engineering

Mechanical Engineering is a branch of engineering that encompasses the generation and application of heat and mechanical power and the design, production, and use of machines and tools. Mechanical engineering involves application of the principles of dynamics, control, thermodynamics and heat transfer, fluid mechanics, strength of materials, materials science, electronics, and mathematics.

10,989 Questions

Do you burn more gas with your air conditioner on?

Do you burn gas when you run your air conditioning in your cae

How EDM wire cut machine works?

in wire cut, a wire is passed through a metal or is placed next to it. the wire works as one of the electrodes while the work piece would be the other one; using andielectric liquid to isolate the wire from the work piece. the electricity is conducted in the wire. as the wire gets closer to the work piece the electricity (electrons) tend to jump from the wire to the work piece in order to create a complete electrical circuit that's when a spark is formed. the dielectric helps us by isolating the wire from the work piece as long as it can, so we can have enough difference in potential between two electrodes before the spark is formed, it works like capacitor stopping the current from going through it until it collapses at a potential and enough current passes through at once. A collateral effect of this passage of current is that material is removed from both the electrodes.

Why bevelling is done?

Beveling is done to proved an smooth tapered edge. This will be done to an edge for the sake of safety or to decrease the amount of wear on the surface.

What do mechanical engineers work with in mines?

The job of a mechanical engineer is to design machines and mechanical installations for major projects. They also evaluate installed equipment, processes and products.

Slam shut valve?

Slam Shut-off valve is installed immediately after the filter & prior to the Regulator. It normally remains open, incase the outlet pressure of the regulator exceeds the permissible limits, the slam shut off the valve senses it through the impulse line & immediately shuts off the flow to the downstream. When the regulator is repaired, the slam shut off is to be open manually by pulling the knob. Once the flow starts through the shut off valve it will remain open till the outlet pressure of the regulator is within limits.

What is the chemical composition of Spring steel?

Spring steel chemical composition

GRED

CARBON

SILICON

SULPHUR

PHOSPHORUS

SULPHUR PHOSPHORUS

COPPER

MANGNESE

1

0.50/0.70

0.15/0.35

0.05 MAX

0.40 MAX

-

0.20

0.30/1.00

2

0.60/0.80

0.15/0.35

0.04

0.04

-

0.50

0.80 MAX

3

0.75/1.00

0.45/0.35

0.03 MAX

0.03 MAX

0.05 MAX

0.12

0.80 MAX

4

0.75/1.00

0.15/0.35

0.25

0.025

0.004

0.12

0.80

What is agricultural mechanisation?

Agricultural mechanization is the use of mechanical technology and engineering in the field of agriculture. Most of these technological advances are meant to increase efficiency in agricultural work, reduce the stress and pressure on farmers and even reduce long term costs.

What is corex technology in steel making and why it is called so?

Corex is a smelting-reduction process developed by Siemens , for the cost-efficient and environmentally friendly production of hot metal from iron ore and coal. The process differs from the conventional blast furnace route in that non-coking coal can be directly used for ore reduction and melting work, eliminating the need for coking plants. The use of lump ore or pellets also dispenses with the need for sinter plants. All metallurgical work is carried out in two separate process reactors - the reduction shaft and the melter gasifier. Lump ore, sinter, pellets or a mixture are charged into a reduction shaft where they are reduced to direct-reduced iron (DRI) by a reduction gas. Discharge screws convey the DRI from the reduction shaft into the melter gasifier where final reduction and melting takes place in addition to all other metallurgical and slag reactions. Corex is a smelting-reduction process developed by Siemens , for the cost-efficient and environmentally friendly production of hot metal from iron ore and coal. The process differs from the conventional blast furnace route in that non-coking coal can be directly used for ore reduction and melting work, eliminating the need for coking plants. The use of lump ore or pellets also dispenses with the need for sinter plants. All metallurgical work is carried out in two separate process reactors - the reduction shaft and the melter gasifier. Lump ore, sinter, pellets or a mixture are charged into a reduction shaft where they are reduced to direct-reduced iron (DRI) by a reduction gas. Discharge screws convey the DRI from the reduction shaft into the melter gasifier where final reduction and melting takes place in addition to all other metallurgical and slag reactions.

Who is No 1 truck maker in the world?

no1:diamler

no2: Volvo

.

.

no5: tata motors.... proud to be Indian...

i dunno about the others....

rony.

What are the functions of container ships?

Container ships are some of the largest ships to cross the oceans. The function is to transport goods from one location to another. The reason containers are used is because the containers can be loaded and unloaded extremely efficiently and shipped with relative ease.

What is Ton of Refrigeration?

Amount of heat required to Melt a Ton of Ice in a 24/h Period This converts to about 12000btu/h.

Full form of TEFC?

It is the housing standard on a motor

Totally Enclosed Fan Cooled

Why stress is a tensor?

Stress is a tensor because it affects the datum plane. When this is affected and it changes, it is then considered a tensor.

How does a isometric drawing paper looks like?

Isometric drawing paper either has dots on it with very minimal distance in between them, or has very small triangles or diamond shape with no distance in between them. It is available in different sizes and varieties.

What is injection molding?

Injection molding is a commonly used manufacturing process for the fabrication of plastic parts. the injection molding process need injection mold and injection machine.

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Injection molding is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the mold cavity.After a product is designed, usually by an industrial designer or an engineer, molds are made by a moldmaker (or toolmaker) from metal, usually either steel or aluminium, and precision-machined to form the features of the desired part. Injection molding is widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars.

the following is a photo of the injection molding process:http://www.vulcanmold.com/article/Plastic-Injection-molding-process.html
A Hollow mould is made from steel in several parts. when the mould is all together the hollow within it is the same shape as the object you wish to produce. The mould is water cooled to keep its temperature under control. molten plastic is forced into the mold at high pressure. it is left to cool for a specified period of time, then the mold is pulled apart in such a way that the object falls out of the mould and the whole thing starts all over.

What are the advantages of flooded type cooler over direct expansion type cooler in chiller?

flooded type cooler is a cooler that is being flooded while direct expansion type is a type that is being directly expanded.

My backwash pool valve will not fully close. Can pine needles get inside?

Mine did the same. The rubber gasket under the valve knob had become messed up. I unscrewed the valve and put the gasket back in place. My local pool place says this happens alot when you turn the valve from backwash to filter while the pump is running.

What is compressor variable vane control?

Compressor variable vane control regards the ability to alter a turbine's fin geometries position ranging from open to closed positions. By mechanically and pneumatically actuating (controlling) these geometries power outputs can be operator managed.

What are the largest commercial airplanes in the world?

In seating and fuselage terms, the Airbus A380 is the largest plane. The Boeing 787 Dreamliner is second.