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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

Why do engineers consider the use of sketching and drawings in perspective important?

A sketch that will help you identify the one you’re meant to be with, so you don’t let them pass you by.

I’ll enter a state of deep trance and “talk” to the universe to give you…

A photorealistic drawing of your perfect match.

A detailed description of their personal characteristics.

And a description of how and when you’ll get acquainted.

Many were completely shocked to see that their ideal partner looked exactly like the sketch they had.

Like Maria from Brazil, who told me…

“I made a new years resolution to finally find my soulmate and settle down. But I wasn’t really sure how to do it. Swiping on Tinder and Bumble just wasn’t getting me anywhere.

So I decided to have my perfect match sketched out for me.

I got a great sketch and prediction of how we’ll meet. Dancing lessons. Then I forgot about it.

A couple of months later I was shocked when I saw him at my salsa class.

The sketch I had gave me the courage and confidence I needed to make things happen.

Now we’re happily married and looking forward to our first child.

Can’t thank you enough!

Maria H.”

Cnc job vacancy in jebelali free zone?

Yes. I am looking for suitable CNC OPERATOR JOB.(MAZAK MACHINES PREFERABLE),

Presently working in WEIR OIL AND GAS .JEBELALI FREE ZONE.

What is GOST 25821-83?

GOST 25821-83 - Fluid PGV

EVP Order Number G2017281

ICS Name Other organic chemicals; Hydraulic fluids

Aqueous solution of glycerin & polyethylene [ polyoxyethylene ] glycol, improved by additives.

Workspace for hydraulic systems.

Does Faraday's law depend on the number of times the coil turns?

Question 2

2 out of 2 points

Faraday\'s law does not depend on the number of times the coil turns.

Answer Selected Answer: False

What are four major components of the Rankine cycle?

The four major components of the rankine cycle are as follows:

1. boiler

2. turbine

3. condenser

4. pump

i.e. in short (B-T-C-P)

Which is better 350 hp 400 tq or 400 hp 350 tq both engines being 425 wt?

350 hp 400 tq hp means nothing it is just what the engine is rated at. torque is the actual measure of power

Who invented the modern submarine?

The modern submarine was invented by John Phillip Holland. He callled it the Holland 1. He tested it in the passaic river in Paterson , New Jersey. Before inventing that he was a teacher in St. John Catholic school.

Effect of pre ignition on engine?

,

Pre-ignition (sometimes called knocking or pinking) is when the fuel is ignited before the desired point in the cycle of the engine.

That is not just before tdc on the cycle, because alost every engine begins ignition momentarily before tdc, and as the engine speeds up - even further before.

In essence pre-ignition is an undesired ignition of fuel vapours which has the effect of slowing down the piston as it rises towards top dead centre.

Because it ignites before the proper time, it can damage the piston surface, cause wear in the bearings/gudgeon pin/little end, big end bearings or cause extra wear on the piston skirt or cylinder bore.

The other place pre-ignition can cause damage is on the valve seats/valve head.

Either way the engine has problems. It could be an advance issue (mechanical - distributor or electronic sensor - most modern engines have a pre-ignition sensor), bad fuel blend (too high octane), it could be as a result of a carbon build up in the head/valve area (which can cause a hot spot - a source of ignition for the incoming fuel)

If it's a modern car - get the pinking sensor checking at your local garage, if its an old car with a mechanical distributor - check the timing.

What is metal use for?

Metal is used for almost everything from cooking, transportation, medical equipment, weapons, parts of hardwares, structures in houses/buildings, industrial equipment, and more.

What is wire welding?

A form of arc welding in which the electrical energy used to weld the metal is conducted through a wire that is fed from a spool to act as a filler metal.

Why is a transformer used?

To step up or step down a particular voltage using the principle of electromagnetic induction. This is a potential transformer.

Transformers are also used to step up or step down current. Current transformers are used extensively in instrumentation applications.

Current and voltage are inversely proportional.

Is bending pipe different than tube bending?

This depends on the thickness of the pipe in question. When bending tubing and pipe one wants to keep the inner diameter consistent through the bend. That's what tube bending kits are designed to do. Exhaust pipes ( wich are thin ) are bent in the same fashion as tubes, only the machines are larger. You can see this if you visit a local muffler shop. If the pipe is thick walled the pipe must be heated to bend it, and then annealed. This process utilizes heavy hydraulic driven machinery. Mandrel bending is a system wich uses two heavy wheels the pipe is fed through. Sand bending is a shade tree mechanics technique where the pipe is packed with dry sand and then heated and bent by hand.

Where can you buy a grappling hook?

Backcountry has a wide array of the best gear on the planet for serious, passionate outdoor enthusiasts. They have the highest quality gear for backpacking, camping, trail running, snowboarding, rock climbing, kayaking, mountaineering & more.

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Three condition of electrode that could affect weld bead shape in sheilded metal arc welding?

The angle of the electrode, the speed of the electrode used to weld and the size of the electrode.

What is grooving in lathe definition?

Grooving in lathe machining refers to the process of creating a narrow, straight, or contoured groove or channel on the surface of a workpiece. This is typically achieved using a specialized tool called a grooving tool, which can cut into the material to form the desired shape. Grooving is often employed for various applications, such as creating space for O-rings, enhancing part functionality, or preparing surfaces for subsequent machining operations. It is a precise operation that requires careful tool selection and setup to ensure accuracy.

What is spur gear?

A Spur gear is a gear and it can change the speed and direction of motion. You have to shift your gears in order to make your gears work. If you don't know how to, ask google or ask Wiki answers for a better answer on what to do. Remember, all gears need to be shifted at a certain period of time.