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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 some examples of reference point?

A reference point is anything that is stationary. So, if you are on a train you know you have left the station because you moved away from the platform. Hence the platform was stationary.

Can you replace a Animatics SM3420D with a SM34205D in a legacy Opto 22 controller system that uses factory floor software?

Difficult to say for certain as there are some minor differences in the specifications of these two motors. The SM34205D replaces the SM3420D, so it would be reasonable to assume they are compatible, however my best advice would be to contact Moog Animatics directly.

Why can we start a shunt motor under no load but why can't a series motor?

The torque on a series motor is determined by the square of the armature current and, so, is very large -much larger than that of a shunt motor. Consequently, on starting, with no back-emf being generated, the torque on a series motor can be dangerously high if the machine has no mechanical load.

What NAS value of oil tells?

NAS value is a standard adopted worldwide to grade the oil contamination, based on particle size. The standard tells how many particles of a particular size are present in that sample.

Higher the NAS value higher is the contamination (bigger particles). Hence the delicate sophisticated type of application like control valves allow oil of NAS value of 5 - 6.

What is the explanation for the working principle of gear motor?

the gear motor is normally worked by induction and DC motor the gears is the worked of change in motor function

Where can a person find tube bending services?

There are multiple tube bending services to be found online on various websites. The most recommended websites are 'Tube-Bending-Service' and 'Barnshaws'.

What are automata in dt?

In the context of discrete mathematics (dt), automata are abstract mathematical models that represent computational systems or processes. They consist of states, transitions between those states, and an input that triggers these transitions, allowing them to process strings of symbols. Automata theory is fundamental in computer science, particularly in designing algorithms, compilers, and understanding formal languages. Common types include finite automata, pushdown automata, and Turing machines, each with varying levels of computational power.

What are the advantages of waste spark?

simplicity of ignition unit, less component, mean cheaper to manufature

Region barren of water?

A desert is an area devoid of water. However, there often is a minimal amount of rainfall, and there may be underground aquifers.

Turn key project?

A turn key project means that when completed the buyer has to do nothing but turn the key and drive away.

What is the minimum weld required on weldolets have welded a CS as the main run pipe is of less thickness?

To be fully welded out plus a fillet of @ 6mm to reduce the stress concentration factor at the bottom toe.

How do you find the diffusion coefficient?

It is possible to calculate the diffusion coefficient of a liquid. You would set up a liquid-liquid diffusion coefficient sample. Use the variables W for solvent molecular weight, F for?æsolvent association factor, V for solvent viscosity, M for solvent molal volume, and T for system temperature.The equation you use is D(A,B) = [7.4T (FW) ^0.5]/ [V (M^0.6) * (10^8)].?æ

What type of material would you use to prevent metal-to-metal contact?

You could use materials such as rubber, plastic, or lubricants like grease or oil to prevent metal-to-metal contact. These materials act as barriers to reduce friction and wear between the metal surfaces.

Formula for maximim tensile stress for cylinder?

This is the highest amount of stress attain within a cylinder or vessel due to forces acting on an area.

How old do you have to be to sign up for You Tube?

1.how old do you have to be in order to sign up for you tube 2.that answer is crap you have to say the age not the question again! p.s i think its 13!

Where can you buy spare parts?

Hi da, Auto Spare Parts USA is one amongst the largest online store where you can find all spare parts for more details visit this link http://www.AutoSparePartsUsa.com

Sensitization of steel?

Sensitization happens when a stainless steel is held at an intermediate temperature (typically ~425 - 815 degrees Celsius) and chromium carbides precipitate at the grain boundaries. This precipitation of chromium carbides at the grain boundaries happens because the carbides are insoluble at these temperatures. In order for the carbide to precipitate, it must get chromium from the surrounding metal. This means that there is a chromium depleted zone around the grain boundaries. It should be apparent that this chromium depleted zone will be less corrosion resistant, specifically to intergranular corrosion.

Sensitization is particularly important in metals that are welded. This is because the welding zone experiences temperatures in the range that can cause sensitization. This can cause localized intergranular corrosion at the weld site.