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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 are Whitworth spanners?

They are a range of spanners (wrenches) used mainly in the British aircraft industry in the 1930's to the 1960's.

What is the equivalent of stk400 steel?

STK400 steel is equivalent to S235JR in the European standard EN 10025 and ASTM A36 in the American standard. It is a low carbon structural steel commonly used in construction and manufacturing due to its good weldability and machinability. When selecting materials, it's important to consider specific application requirements, as other steel grades may also meet similar performance criteria.

What is a wing in ground craft?

Is a multimodal craft which, when in its main operational mode, flies in close proximity to the surface by utilising surface effect action

What is theFunction of accumulator in hydraulics system?

The function of accumulator in hydraulic system is to receive and store excess oil pumped through the system, which is used to compensate sudden increase in loads.

Cars have engine displacement measured in cc What is this cc?

A cc is one cubic centimeter.

An engine measurement in cc is the total of the volumes displaced by the cylinders of the engine through one revolution.

What is the ratio of the diameter of a table top to the width of the base?

This involves several factors, size of table, intended use, design, there are "GENERAL" formula's out there, for certain designs. It comes down to intended use and its stability. Example: In bowl turning, the general formula is 2/3 bowl area, 1/3 base area, this is for beauty an balance to the eye, that said, I have also seen bowls that shatter that formula and are still beautiful an pleasing. My suggestion is go to a furniture store and find a table that you like that is similar, then take some measurements. Good-Luck

Is the ratio of stress-strain in the region below the proportional limit on the stress-strain curve?

stress is directly proportional to strain up to the proportional limit. Their ratio is young's modulus.

Mechanical engineering can enter aerospace field?

Yes; in fact, a bachelor of mechanical engineering typically branches out into multiple options to allow specialization on the last year of study, and aerospace is often one of them.

Even without choosing this option, though, you may enter the aerospace field with general knowledge of materials and their failure, dynamics, etc. Mechanical engineering is extremely versatile.

How do you determine and engine's bore and stroke?

if standard engine, you could pull specs for engine online, or any dealer of that vehicle could tell you. should also be in owners manuell if you have it

How do you increase cutting tool life?

1) use it on the material it was designed for - Check for hidden nails

2) use them for the task they were designed for - Don't use a chisel to pull staples or to pry with.

3) Don't let cutting edge make contact with other tools - The bottom of the tool box is not the place for a edged tools and drill bits

For lathe and milling machine cutting tools:

* use at the correct speed for the tool and material * use coolant/lubricant to minimise heat where appropriate for the material

What happens when you use petrol in diesel engine?

Your car breaks down and you cant move at all until you find a garage then it costs a fortune!

Running petrol in a diesel engine will destroy that diesel engine.

What is the grip of a bolt?

The grip length of a bolt is the distance from the head of the bolt to the nut or where the threads start.

What grade equivalent is kumon D159?

Kumon level D159 typically corresponds to a grade equivalent of about 3rd to 4th grade, depending on the specific skills and concepts being taught. The Kumon program is designed to help students progress at their own pace, so individual experiences may vary. For precise placement, it's always best to consult with a Kumon instructor.

Can a compression fitting be used in the wall if it has an access pannel?

Not incilvilized parts of the country BUT then again some states have the best politicians money can buy thus anything is possible like two New England states come to mind.

Compression fittings should be exposed if they are even allowed in your area

How to convert angular torque in to linear torquewith Example..?

Firstly could you be so kind to explain to me what "linear torque" is. I'm pretty confident that torque = force x radius at which that force is applied, thus the term linear torque cannot exist. Also torque is simply the angular version of force,

I'm going to take a stab at this and assume that what you really want to know is how to convert torque to force. Since the equation defining torque is T=FR, where T is torque, F is force and R is the radius at which that force is applied, then the force (by simple algebraic rearranging) is simply T/R.

What is closed loop mean as in vehicle?

Closed loop, as applied to engine control, means as control changes are made, some variable is measured to determine whether the setpoint is reached, or whether more or less adjustment is required. For instance, in a typical fuel-injected vehicle, when you first start a cold engine, lots of fuel is required to keep it running until it warms up. The computer simply dumps a predetermined amount of fuel governed only by engine speed, throttle position, and engine temperature. There is no point in trying to fine tune the fuel delivered at this point, since the mixture needs to be soggy rich just to keep the engine running. This is called open-loop control. Once the engine has reached operating temperature, the computer switches to 'closed-loop' control. This means the computer receives feedback from an oxygen sensor as to whether the mixture is too lean or too rich, then it makes adjustments, then checks the sensor again, then makes adjustments, and on and on in an infinite loop. To understand the principle, imagine if you were to close your eyes and type words on your computer keyboard. If you are a good typist, the words are probably correct, but you have no way to know if you made a mistake. That's open loop control. There's no feedback as to whether the desired result was obtained, you simply have to assume that the correct words are there. Now open your eyes. if you mis-typed a word, you now have the feedback that you messed up, and you can type in a correction. That's closed-loop, from your fingers, to the keyboard, to the screen, to your eyes, which control the fingers. See the loop?

What is an inertial reference?

An inertial reference frame is a frame ... a box, a laboratory, a space capsule etc. ... in which Netwon's laws of motion hold true.

Example: My office on the earth is not an inertial reference frame. An object in motion doesn't "remain in constant uniform motion without application of an external force", because of air resistance. Also, an object released in the middle of the air doesn't stay there, it accelerates toward the floor.

Why are plastics used in cars?

Because plastic in today's world is used for nearly everything. From your cell phone, to food containers. Plastic can ultimately take any form, at a cheap price.

Therefor, for certain parts, plastic is a very good alternative to metals. For parts like the radio, and the internal framing of the car. to alowe more ways of styeling

What is the condenser approach?

condenser approach is heat transfer the water to gas of condenser efficiency is good less then below (2 F) the system is working good.