0
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
The fumes will depend upon the following: The type of fuel you are using, the type of engine, weight of vehicle, etc. It can contain the following: Carbon monoxide, Sulphur Oxide, Nitrogen Oxide, water vapor.
A 2-pole motor has about 1.5 ft-lbs of torque per horsepower where a 4-pole motor has 3 ft-lbs of torque. also the speed of a 2-pole motor is twice that of a 4-pole motor. The speed of a motor is determined by: speed=(120 x freq)/no. of poles At 60 Hz, a 4-pole motor is about 1800 rpm where a 2-pole motor is 3600
Who designed a steamboat capable of carrying heavy loads up stream?
Robert Fulton's first steamboat was the Clermont. He and a partner, Robert R. Livingston, later designed the NewOrleans, which was used to carry passengers and freight up and down the Mississippi River.
What are the differences between Galvanized pipe and black steel pipes?
Answer These are different descriptions for a part. Tubular Steel describes the shape. Steel can be ordered in different sizes and shapes and material properties. Tubular Steel is one type of shape and the process for making the tube will cause the properties for that steel to be slightly different. Galvanized Steel describes a type of finish that protects the steel from corrosion. This process alters the surface of the steel that keeps it protected and thus can be used for construction where it is exposed to the elements. I'm sure you can order a steel tube that has a galvanized finish. Many chain-link fences are made from galvanized steel, including the round posts. Custermen
What are the personality requirements of an mechanical engineer?
Engineers should be creative, inquisitive, analytical, and detail oriented. They should be able to work as part of a team and to communicate well, both orally and in writing. Communication abilities are becoming increasingly important as engineers frequently interact with specialists in a wide range of fields outside engineering.
How did the wheel help mesopotamia?
It helped them alot it was there first innventio which is still succsessfull now!
A brittle material fractures without haven a large strain on beforehand. Examples are most ceramics, of extremely hard steel.
The opposite is ductile.
A chain hoist uses gears to multiply force.
A chain hoist is operated by hand. An operator pulls the light loop chain on the side of the chain hoist. This turns a gear mechanism inside the chain hoist housing to turn the chain pulley. When this pulley turns, it raises the heavy chain which usually has a hook on the end. By pulling the light chain loop, the manual hoist is actually able to increase the force that is being applied by the heavy chain. This is caused by the gear ratios inside the manual chain hoist. The mechanical work done by the operator is the same as the work done by the heavy lifting chain.
What benefits do normal auto mechanics receive?
there are many different benefits but a few of the main ones are ,
You can have the skills to fix your vehicle cheaper, and faster, won't need to take your car into an auto repair shop, you basically choose your own work hours most of the time,
What do you mean by turbine synchronization?
During a typical power plant startup, all components of the power plant are started slowly. The turbine is first rolled at a slow rpm. Then the rpm is increased gradually to a point where it can match the frequency of the grid. At this point, the turbine can be synchronized with the grid and start outputting electricity into the grid.
How the knuckle joint is made?
Do you mean the ball joint in an automotive that is connected to the knuckle? Please write to 2459473@gmail.com for answer.
What is turbine windage protection?
when steam flow blockage occured in steam turbine due to damage of blades/nozzles than steam temperature will increase so protect the turbine from high temperature this protection is introduced.
Why should a mechanical engineer study tecnical drawing?
Technical drawings are tools to transfer technical information between colleagues, customers and contractors. It is vital for an engineer to be able to interpret and understand the essence of the drawing and also convey information to others.
A good example is the interaction between the design and production department in a manufacturing organisation. The production engineer should be able to interpret the drawing and produce the required components of the required dimension and tolerance. Likewise the design engineer should be able to generate legible and comprehensive drawings that does not leave room for ambiguity.
What makes more a architect or civil engineer?
The average annual pay for an architect is higher than that of a civil engineer. The average annual income for an architect is $102,000. The average annual income for a civil engineer is $79,000.
Do real gases behave like ideal gases except at very high temperatures?
Gases behave most ideally at low pressure and high temperatures. At low pressures, the average distance of separation among atoms or molecules is greatest, minimizing interactive forces. At high temperatures, the atoms and molecules are in rapid motion and are able to overcome interactive forces more easily.
Welding temperature of tig and mig?
Tig, or tungsten inert gas welding used to be known as Heliarc welding when it was first developed in 1941, because helium was then used as the inert gas. As the process has developed and progressed the name was changed to Tungsten Inert Gas welding. Argon or a combination including argon is now more widely used as the inert gas for this process.
A conventional jet engine produces its thrust in large part due to the heated gasses escaping out the rear of the engine. While this is very useful for aircraft which fly at high speeds and high altitudes, it is less desirable for aircraft which are designed to fly at slower speeds and take off from smaller runways.
A turboprop engine is a jet engine which converts the bulk of its thrust into rotational energy for powering a propeller. This allows jet engines, which are a high-rpm low-torque engine to be used in situations where low-rpm and high-torque are needed instead.
The higher reliability and efficiency of a jet or turboprop engine as compared to an internal combustion engine makes them very desirable for aircraft designs which, in the past, would have utilized internal combustion engines.
Answer 2A turboprop is a jet engine with a propellor attached - a jet engine is a turbine (fan) that compresses a large volume of air for combustion in a chamber as a opposed to a piston - a turbo charger on steroids - the propellor is attached to the central shaft of the fan blades - the two exhaust tubes on either side of the front of the turboprop are for the jet exhaust and it actually can add to the speed of the aircraft - the jet engine is usually backwards on a turboprop, the air intake under the engine is sent to the back which is really the front of the jet turbine, compressed by the fan blades (which drive the propellor) then sent to the combustion chamber where it is mixed with fuel and ignited - then exits through the exhaust tubes which bend to point backwards adding to the total thrust of the engineOften the word turboprop is confused with turbo charged which is a regular piston engine that uses a turbo charger (air compressor) - the P-38 lightning twin boom fighter of WW2 is a great example of a turbocharged engine and once you hear the sound the turbo chargers make you never forget it
Turbo prop engines address a need for a compromise between propellor and jet engines - propellors are efficient at slow speeds to about 350 mph (meaning the amount of fuel used for speed and range) and dont have as much power as a jet - jets are effecient from about 300mph up and are more powerful than a piston engine but use more fuel - a turbo prop has nearly the power of a jet without as much fuel use and fills the gap for a mid range speed of about 200 to 400 mph - rarely see turboprops on low speed aircraft because of the extra fuel use with exception of some STOL bush style aircraft like the cessna caravan and the new quest kodiak that need the extra power for short/rough field use
Also turbo props can reverse thrust like a jet engine but do so usually by changing the angle of the propellor blades - another big advantage over piston engines for short runways - also turboprops use jet fuel since they are jet engines so they are being used more frequently in countries outside USA where avgas is becoming hard to find (not much general aviation aircraft but lots of jet airliners in many countries)
A big advantage to using turboprops is how long they can be flown before a complete overhaul - the time can vary a lot by engine but an average time for a piston engine is about 1800 to 2000 hours and a turbo prop about 3000 to 3600 hours - so you can fly a turboprop a whole lot longer between major overhauls.
All matter has the potential to be smelt. Some we can smell easily and other things like Rocks and Metal are more difficult to smell...
But we have no problem smelling rust.
If its made of matter and it vibrates with its own special frequency then it has a smell...
All of the elements and all of the molecules that the elements make up have a smell...
You just may need a really sensitive nose...
But what smell is, is the atoms mixing frequency's as they very slowly evaporate and in-turn release their energy back to the universe.
All of our senses work on the principal of the detection of vibration and frequency.
What are the benefits of pneumatic control system?
nComponents have long working life resulting in longer system reliability nEnvironmentally friendly
nSafety issues are minimized e.g.. Fire hazards; unaffected by overloads (actuators stall or slip)
pneumatic actuators in a system do not produce heat (except for friction)
Where does the high tensile steels are used in the ship?
High Tensile Steel (HTS) is generally used for prestressing tendons.
What did Charles Goodyear invent by accident in 1839?
Charles Goodyear invented the process of vulcanisation of rubber.
Before the mid-19th century, natural or India rubber was limited in its usefulness because it melted in hot weather, froze and cracked in cold weather, and tended to stick to virtually everything. Charles Goodyear was a businessman who experimented with the properties of gum elastic. He accidentally discovered the process of vulcanisation of rubber when he dropped some rubber mixed with sulfur on a hot stove. Goodyear missed out on the financial benefits of his invention as Englishman Thomas Hancock copied his idea and attained a British patent for the process before Goodyear applied for a British patent. However, vulcanised rubber was later was made into tyres emblazoned with Goodyear's name.
I found one patent in the name of the Xerox corporation. United States Patent 3583505
Abstract:
A spring scale comprising, in a preferred embodiment, an upright tripod stand terminating at the upper portion thereof in a tripod head, an open sleeve in said head, a transparent graduated tube inserted therein with a spring in said tube connected at its lower end to a weighing pan.
There would be other patents as to other type or mechanism on another spring scale.
