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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

Can you mill red hot glowing steel?

No machining is advisable when material to be machined is red hot rather it can be forged, extruded. Primary machining only is normally advisable when material is red hot.

How does etching reveal the crystal structure of metal?

Cristal are fundamentally anisotropic. They are geometrically organized in planes that are denser than other direction. When acid etch a crystal, it began where it's easier, by the planes directions where the atoms are the most distant from each other. This process highlight's the crystal planes.

How do tires that contain air absorb some of the energy of bumps on a racing circuit?

The tires absorb very little of this energy. The energy that they do absorb is due to the flexing of the tire, especially of the side wall.

Related Information:

This is a very important safety consideration, affecting the controllability and stability of the car at high speeds. Almost all of this energy is absorbed and controlled by the car's suspension. Depending upon the suspension configuration: the springs, shock absorbers and torsion bars, in various iterations & combinations work in concert to safely absorb this energy.

Longshoreman jobs pay?

The wage rate depends on seniority and the type of cargo that is handled. In Texas, new guys earn $10 - $16 per hour. More experienced workers may earn up to $31 per hour. I am a Longshore lawyer at maritime_injury_lawyer.com and have seen all different wages in that range.

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When they work, casuals make $18.50 to $21.50 an hour. But the goal for most is union membership, with earnings of $60,000 to $100,000 a year, plus a full package of medical and pension benefits.

What steel is used to make a screwdriver blade?

A screwdriver head is normally made of toughened/hardened steel or chromium plated steel. Depending on the quality of the screwdriver.

What is the turning radius of a Mercury Villager?

The turning radius of a Mercury Villager may depend on the year in which it was made. The turning radius is 38.7 feet for vehicles made during the 1993-1998 period.

Who invented the 's' bend pipe and why?

Eli Whitney after he developed the steam engine to allow for the coefficient of expansion per degree of temperature changes also called an expansion loop

Alloying with which metal iron gets fatigue resistance?

There is no one single answer to your question as various alloying materials will achieve this. There are also various forms of fatigue failure, for instance thermal and bending, which will be affected by what alloying material is present.

How do you add oil to any refrigeration system?

you can buy little cans that have 2oz of freon in them and 2oz of oil --add like you was charging system-------or----when you evacuate system and while it is still under vacuum, lower your yellow hose into refrig oil,open gauges until the amount you want to add ,then follow it up with some freon -------try to not add anymore air to system than you have to

What does the parallel axis theorem states?

Angular acceleration is the rate of change of angular velocity over time. In SI units, it is measured in radians per second squared (Rad/s2), and is usually denoted by the Greek letter alpha (α).[1]

Are Dam hydraulic or pneumatic?

It depends on the dam. Some dams are hydraulic and some are pneumatic.

Short answer: Both

How do you design a maize milling machine?

We need to know the processing capacity, such as how much tons per hour, and the maize species(because maize in different areas has different nature) first. Then the engineers will design for the processing capacity the detailed land space, the structure, the technological flow, the single machines integrated and the end products composition and yield rate. For more information, please send e-mail to janefan462@gmail.com

Which one is greater yield strength or breaking strength?

The breaking strength is always greater than the yield strength.

Thread schedule 10 pipe?

Because threading thin wall pipe renders the pressure rating ineffective, as it thins the wall to much to be able to withstand the pressure.

What is spinneret nozzle?

its a nozzzle that makes the substance ejecting from the source pattern itself in a certain way

Is BS 1387 steel equivalent to ANSI Schedule 40 steel?

BS 1387 is UK Standard and ANSI/ASTM are American Standards; both deals in the specifications of Steel or Alloy pipes sizes, BORE, WALL THICKNESS, chemical composition, and manufacturing process.

Both are standard in manufacturing and material process specifications.

For example;

ASTM A 53-90b Carbon-Steel Pipes, Welded (F & E Types) or SEAMLESS (S Type) Grade A & B

BS 1387 Medium (Class B) can be the equivalent etc...etc...

Will the speed of an aeroplane be same which is flying at different altitudes and have same mach number 2?

no mach no is defined as ratio of local speed of aeroplane to speed of sound. As the altitude increases the True speed of aeroplane increases and speed of sound decreases because of reduction of ambient temperature Hence the value of their ratio should increase at an increasing rate with increase in altitude. Keeping the Mach No constant say, 2 means reduction of speed to a large extent so as to maintain constant Mach No. Therefore same Mach no the aeroplane at higher altitude is flying slower

How do you divide the pipes?

im a fresh man also ,there are different ways

and i always divide into seamless pipe and welded pipe ~

more information you can check it by answer~

and if you have any information please share it `

wish you have good mood every day

What is the temperature class PU?

As per API 6A temperature classification, -20 deg F to 250 deg F operating temperature range.

Best diesel engine in the world?

Here's a few million mile pickup truck diesel engines - - - 7.3L IDI International (Ford), 6.9L IDI International (Ford), 7.3L Powerstroke Turbo Diesel (Ford), and the 5.9L Cummins I-6 engine (Dodge.) Of the newest diesel engines offered in the Big 3 trucks, I'd say #1 is the 6.7L Powerstroke Diesel, #2 6.6L Duramax, #3 6.7L Cummins.

Why is pneumatic chemistry important?

Pneumatic chemistry refer to chemistry'physics of gases; this was a stage in the development of chemistry in the 17-18 centuries.

How do you lubricate a rubber or silicone piston sliding inside a cylindrical transparent acryl pipe the piston has an outer diameter of 3mm and the pipe has an inner diameter of 3mm for air pressu?

I would use water based lubricant like the one used with condoms.

Easy to find, environmental friendly, put apart the obvious sex use, otherwise its the best known substance to lubricate rubber and other synthetic materials.

What is the difference between PVC and polypropylene canvas?

PVC is the most common plastic used in book covering materials, and has been used for many years. Polypropylene has become more common recently. Both of these plastics have different handling characteristics. PVC is generally considered to be easier to fold and to conform to the shape of a book more readily, while polypropylene is usually a little more rigid.

Sometimes PVC will stick to itself, particularly in warmer weather. Polypropylene is well known for it's non stick characteristics, in fact it is difficult to glue and even permanent marker can be removed from it, giving it superior life and resistance to damage and marking.

Polypropylene is also acid free, and is considered to be an archival plastic. PVC is known to have a low level of acidity.

PVC is cheaper than PP.