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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 the importance of casing?

Precedents cases a case previously decided that serves as a legal guide for the resolution of subsequent cases.

What design Differences between Rolls-Royce engine and general electric?

Rolls-Royce engines typically feature a unique, modular design that allows for easier maintenance and upgrades, with a focus on noise reduction and fuel efficiency. In contrast, General Electric engines often emphasize high thrust-to-weight ratios and advanced materials for durability and performance. Additionally, Rolls-Royce engines may incorporate a more streamlined nacelle design, while GE engines often utilize larger, more robust fan blades for enhanced performance. Overall, these design philosophies reflect each company's engineering priorities and target markets.

What is warpage in hypermesh?

waprage is distortion of elements when there is curvature the elements are not perfectly along the curves

What is the different between centrifugal and positive displacement compressor?

compressor work on two principles

1)reduce volume of a constant amount of gas

2)adding more gas in a constant amount of volume

positive displacement compressor works on first principle it reduces the volume of gas by applying force on it but gas amount is constant in every stroke or rotation thus increasing the pressure.

centrifugal compressor work on second principle it adds more amount of gas in a given constant volume thus the pressure increase.

What is the full form of lbf?

foot-pound. That is the application of one pound(al) of force to an object with a lever at 1 foot distance from the point of application. Usually, a torque wrench is used to apply a specific force to a bolt, measured in foot-pounds.

What are the duties and responsibilities of an auto mechanics?

Three duties are to make sure they don't mess up any thing that was not wrong with it

To make sure you fix what was wrong with it

Not to charge to much

What purpose does the ignition coil serve?

The ignition coil increases the voltage to the spark plugs. Without this increase in voltage the spark would not be formed in the gap of the spark plug as it would not have enough voltage to jump from one electrode to the other. All spark plugs have two electrodes, a positive in the center of the plug, surrounded by a ceramic insulator and connected to the coil through a distributor, and the negative attached to the screw threads of the plug and grounded to the engine block to complete the electrical circuit.

How do you convert the analog fuel level indicator into digital in cars?

A: By adding an ADC analog digital converter but then again false triggering and monotonic and other errors makes this approach not desirable. unless heavily filtered the numbers will just rolls by filtering you get back again to analog response.

How do you calculate compression of metals if they cooled under -73 degree temperature?

Either the question is misworded, or more information is needed. Compression implies load; in order for a peice of metal to be loaded by a temperature change, it would need to be rigidly restrained by something with a different coefficient of thermal expansion. If you mean what is the dimensional change, that is answerable. It is as follows: (original size) X (coefficient of thermal expansion) X (temperature difference) = (change in length) You need to look up the coefficient of thermal expansion, and make sure you get the units right: /°C or /°F

What is 4stroke engine?

A 4 stroke engine takes 4 strokes to complete a cycle. 1, intake. 2, compression. 3, ignition/power. 4, exhaust.

What is relative equilibrium?

sort of trajectory, solutions of eqaution of motion of a mechanical system,

What is combination set?

System with several different mechanisms are made ​​with different devices.

How do you build a pneumatic air cannon to shoot out t shirts?

build an air cannon with a big air tank then attach it to a ball valve then make the barrel big enough for a t shirt

What ia the applicatoin of slew rate?

A: The application is for DAC ADC converters where the fastest slew rate is desirable for fast conversion

What is SAE Grade of Bolt?

SAE grade of a bolt refers to the classification system established by the Society of Automotive Engineers (SAE) that indicates the strength and material properties of the bolt. The grades range from 1 to 8, with higher numbers indicating stronger bolts, typically made from alloy steel with specific heat treatment processes. Each grade has a specified minimum tensile strength, which helps in determining the appropriate bolt for various applications. Common grades include Grade 2, Grade 5, and Grade 8, with Grade 8 being the strongest.

What is the spring back in bending process?

Spring back is the amount (could be measured both linearly or angulary )that the material has returned back to its original position after the bending process.

How do you interpret first and third angle projection?

The front elevation is in the centre in both projections.

In 1st angle projection the end elevation is on the opposite side of the front elevation and the plan view is below the front elevation.

In 3rd angle projection the plan view is above the front elevation and the end elevations are on the same side as viewed

What hydraulic oil to be used for denyers operating room table?

The specific hydraulic oil to be used for a Denyers operating room table may vary depending on the manufacturer's recommendations. It is important to consult the table's user manual or contact the manufacturer directly to determine the appropriate hydraulic oil specification, such as viscosity grade and compatibility with the table's hydraulic system. Using the recommended hydraulic oil will ensure optimal performance and longevity of the operating room table.

Why external magnets are used during pipeline MFL tool run?

We use them as an alignment point of reference in the 3 and 9 o'clock position to provide a hard identifying feature where no existing ones, such as valves or taps, are present to maintain a high degree of accuracy from the IMU. The IMU is capable of producing sub-centimeter GPS coordinates for any point on the pipeline as long as it's data can be aligned to features located by the MFL that have known and highly accurate GPS coordinates. When the MFL tool with the IMU passes the magnets, it recognizes the "artifical" anomaly which we have placed on the pipeline. We then align those points from the ILI data to our GIS for accurate location data.