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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
The maximum stress induced in a body due to suddenly applied load is twice the stress induced when the same load is applied gradually
Is it welt the metal or weld the metal?
Weld is a verb which means joining two pieces of metal together.
What would cause clucth fluid to leak out of front of tranny?
A hydraulic clutch is a sealed system with a small amount of fluid, and if it were to be leaking, almost immediately the clutch would be rendered inoperable.
The front end of a manual transmission, is called the bell housing, and typically the casing is all one piece, so the front section, or bellhousing, is what encases the actual clutch kit and should have no fluid in it at all, as typical automotive clutches are dry. Fluid leaking from the front of the transmission, where it is bolted to the motor, is likely motor oil from the rear main seal, which is where the transmission shaft enters the motor, within the center of the clutch. This is one of the few leaks that need to be addressed immediately, if the vehicle is still operable, it wont be for long. Once the clutch plates are saturated with the leaking motor oil, they are compromised, and the entire clutch kit will need to be replaced, in addition to the failed rear main seal. In both cases, the transmission needs to be removed so it is labor extensive, and not a job for a novice mechanic. Reinstalling the transmission is even more difficult than removing it. "It's just a minor leak" does not apply here.
Give reason for using a drawing in preference to written and spoken communication in engineering?
In: http://wiki.answers.com/Q/FAQ/1766 [Edit categories]
What are the basic different between the petrol and diesel engine?
Well gasoline engines have a spark plug that ignites the gasoline as it is injected into the engine. Diesel engines have no spark plugs because the high compression ignites the fuel as it is injected. Because it releases higher energy density, diesels get better fuel economy.
The main difference between a diesel and a gasoline (petrol) engine are the way the fuel is ignited. In a gasoline engine, a fuel/air mixture is introduced into the cylinder either through a carburetor or fuel injection system, where it is then compressed and ignited with a spark. In a diesel engine, air is compressed in the cylinder which heats it to about 1000 degrees F (550 degrees C), then fuel is injected under high pressure and ignited by the superheated air. To accomplish this, diesel engines also have higher compression ratios than gasoline engines.
What does the word cupola mean?
Cupola has several meanings. It is a roof or ceiling in the form of a dome, a small roof structure sometimes protecting a skylight or ventilator on the roof of a building, or an observation dome on a passenger car or caboose of a railway train, or on a military vehicle. It also is a name for a vertical cylindrical blast furnace for melting iron for casting, and a gun turret on a warship.
Are pneumatic tools intrinsically safe?
Yes, very safe as long as not used in a explosive atmosphere.
Aircraft reciprocating engine indentification?
All certified airworthy aircraft engines have data plates attached that gives all the identifying info. If the plate is missing, the engine is not legally airworthy no matter what the actual condition.
What makes gauges flip flop up and down?
Could be the sending unit or a problem with the wiring if electrical.
In which process is the electrode used in welding?
Manual Metal Arc Welding(MMAW) Also GTAW (TIG) and GMAW (MIG) The MIG wire carries electric current so it is considered the electrode. TIG the Tungsten is considered an electrode.
What did Frederick W Taylor do?
Fredrick W. Taylor studied work patterns and efficiency in the early 20th century and developed a method that doubled efficiency in his factory. he published his findings in 1911 titled: The Principals of Scientific Management. His legacy sparked an interest in applying scientific concepts to the work place and added credibility to the young feild of I/O psychology
How are casts and splints used for immobilization?
Casts are applied by a physician, a nurse, or an assistant. They are custom-made to fit each person, and are usually made of plaster or fiberglass. Fiberglass weighs less than plaster, is more durable, and allows the skin more adequate airflow.
How can you reduce spatters in welding process?
by having the machine properly set and good consumables.
Why do some positive displacement compressors have unloader valves?
A positive displacement (reciprocating) compressor has at least 4 valves on each cylinder. 2 intakes and 2 exhaust valves. Unloader valves on these compressors close the intake valves on these compressors so that they do not continue to draw air (or gas) into the system when the operating pressure of the system is reached. These unloaders are typical pressure switch controlled solenoids that hold the valves shut until released. They prevent overpressurizing the system which would result in safety valves being activated or damage to the system.
With the intakes shut no additional air is added to the system and the compressor continues running unloaded, alternately compressing and uncompressing the air remaining in the cylinders.
A positive displacement (screw) compressor unloader valve operates similarly, shutting off the intake air to prevent overpressurizing the system.
A centrifugal compressor does not require the unloader valve as it will not continue building pressure beyond its rated capacity.
To avoid slugging nozzles and blades inside the turbine with condensate on start-up; this can break these components from impact. The blades were designed to handle steam, not water.
What is the difference between tube and pipe?
Tube is measured by outside diameter, pipe is measured by inside diameter.
A hearing aid invented by a man named Miller Reese Hutchison.
What are the two types of stress a truss member can experience?
Compression or tension, the top chord will always experience compression and the bottom chord will always experience tension. The other members can experience either.
What is full form KKS code used in the power plant equipment codification?
Kraftwerk-Kennzeichen System
What is the difference between a Butt weld and a socket weld?
A butt weld is where the diameter of the pipes welded together are the same, a socket weld is where a larger diameter pipe is fitted into a smaller one. In making a butt weld, the pipes (or pipe and fitting) usually have an angle machined or ground into the outside corner, so when they are placed together face-face, there is a circumferential V shaped gap serving as the weld prep. In a socket weld, the pipe is inserted into the socket, backed off slightly to make a gap between the end of the pipe and the bottom of the socket, and the weld is made around the outside diameter of the socket to the outside diameter of the pipe. The gap at the bottom of the pipe prevents thermal expansion from stressing the joint during or after welding.
What is the difference between ultrasonic welding and radio frequency welding?
what is the difference between ultrasonic welding & radiographic welding
