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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

What colors absorb shortwave radiation?

If you're talking about "shortwave" as in "shortwave radio", we might as well stop right here; color has nothing to do with it. Otherwise, it's a little more complicated than it sounds because of the way vision works. The shortest waves of visible light are those at the violet end of the spectrum. An object that absorbs violet light will probably appear greenish, though depending on what other wavelengths it absorbs it could appear to be pretty much any color other than violet.

Which is better double wishbone or multi link suspension?

double wishbone probably the better system for the track but in tearms of road cars multi-link by far as it gives all the advantages of duble wishbone but is more comnpact andf can be modified more easily. the multi-link system keeps the camber and castor more solid than double wishbone, but under handling you want more surface area of the tyre in contact withmthe road as this means you will have more grip and as a result of this you can corner quicker.

track - double wishbone

road and track - multilink

What is a hot rolled thread?

It's a thread that's been formed by rolling the piece while hot between two dies.

Gas piping schedule?

I use schedule 40 for natural gas BUT if your talking medical Gases then look up the NFPA 54 or contact the CDA and your local codes

How do you weld stainless steel exhaust?

a few ways the easiest way is to braze it assuming you want it to be the cheepest and most reliable, all you wil need are OAW tools like oxygen and either acetalyene, propane or natural gas. Make sure to use a correct OAW welding tip like a 0 more surface area less heat

What is the difference between traction motor and general motor?

A series motor is employed for traction application which has starting torque and permits intermittent operations by braking, which cannot be expected of a general purpose motor.

Which collecters are used to improve the output of solar water heater?

Black Chrome plated Copper fin Tube Type collectors are best. Contact Solchrome Systems

What are low beams?

the lights that arnt your brights, the main ones that come on when you turn your lights on, usually dual stage but sometimes are not

Comparration diameter size of suction and discharge?

The diameter of the discharge line leaving the ac compressor would be smaller than the suction line, because the compressed gas in the discharge line is more dense.

How to calculate belt conveyor speed with motor RPM and ger rastioc?

we know motor rpm, gearbox ratio, gear spoket no of teeth, conveyor pully spoket no of teeth and conveyor pully O.D.

Exm- we have a motor of 1500 rpm, gearbox ratio 30:1, gear spoket no of teeth 24, conveyor spoket no of teeth 48, and conveyor pully (head pully) od is 200 mm,

Solu- motor speed- 1500 rpm

gear output - 1500/30 = 50 rpm

conveyor pully rpm - 24*50/48 = 25 rpm

conveyor pully cercumfrance - 200*3.14 = 628 mm or 0.628 meter

conveyor speed - 25*0.628 = 15.700 meter per menuts

What is the purpose of having a back pressure valve in marine refrigeration system?

when two refrigerated spaces are severed by only one compresser & condenser but need to be maintained at different temps. a back pressure regulator comes into play. The back pressure regulator will be installed on the outlet of the refrigeration system to maintain a minimum back pressure in the evap coils. Since pressure is directly related to temp. then the temp. desired can be maintained by the pressure you set.

How is mud circulated in drilling operation?

Mud is pumped down the drill pipe, and it flows through the bit, then up the annulus between the drill pipe and formation. Since mud carries rock fragments and possibly contains gas, it must be processed before being pumped down the drill pipe. Also, there may be some losses, so a make up supply of mud must always be available.

See related link.

Is Piano wire the same as music wire?

Yes. Piano wire is tempered high-carbon steel wire, but is not coated so appears dull gray. Music wire is tempered high-carbon steel wire coated and polished for use on stringed instruments (e.g. hammer dulcimer). However, music wire may also refer to the aforementioned piano wire. Their tensile strengths are identical.

What is the use of the Laplace transform in industries?

The use of the Laplace transform in industry:The Laplace transform is one of the most important equations in digital signal processing and electronics. The other major technique used is Fourier Analysis.

Further electronic designs will most likely require improved methods of these techniques.

Where can mechanical cams be found?

On the camshaft of automobiles

Vending machines

What is plasma welding?

Plasma welding is another name for arc welding. It is a process in which electricity super heats air to form a plasma arc. This arc transmits an electrical current to a metal surface and creates heat to melt the metal together thus creating a weld joint.

What is site mechanical engineer scop of mechanical engineer?

Mechanical designer do from basic or concept design to a finish product output to market including these activities: concept design, modelling, simulation, drafting, manufacturing, and after market activities.