Mechanical Engineering

Very Hard to thread rectangle or square pipe

China

There are no set hours for jobs with different companies.

The second shift is a woman's "shift" of work at home, consisting of housework. (The "first shift" being their job.)

12.7 kg / m

brazing clints head

20 gauge is equel to 0.8mm

... to continue spinning.

Answer:

Boilers were at one time (and some still are) rated in horsepower, where 1 horsepower equals the ability to evaporate 34.5 pounds of water into steam. In this unusual application, 1 horsepower would be equal to 33,472 BTU.

Answer:

Well, it's a bit far fetched to link the two... but... the BTU is a measure of energy, heat energy. The more thermally efficient an engine is, generally speaking, the more horsepower that it will produce.

Answaer:

1hp (british)=2544.434btu/hr

The making of stainless steel pipe is a long and intense process. There is a piece of round bar that is heated at first and then a mandrel is inserted into it giving it a round and hollow shape. Due to its irregular shape the pipe is rolled continuously and cooled down with chilled water for making it hard. And of course the stainless steel pipe is safe for drinking water as it is resistant to corrosion and is much durable.

In Carnot & Stirling cycle there were 2 isothermal processes. but in Stirling engine other 2 processes are constant volume processes whereas in Carnot other 2 processes are isentropic processes.

Stirling engine has low maintenance and easy to built because of there construction.

Both cycle's efficiencies near to same. but operating according to there applications.

Max forging force is not as high as screw or hydraulic presses.

A portable air compressor would be one small enough to carry or has wheels on it

so it can be rolled where you need it , a stationary compressor stays where it is

installed

A simple single pulley enables the applied force to change direction. A pulley at the top of a well is the common example.

In many applications, such as the fan belt on a car, it is used to transfer energy from one shaft to another.

Use the following equation:

y = mx + c

where m = the gradient and c = the point at which the line intercepts the Y axis. M is calculated by Change in Y / Change in X... For example;

The line moves 3 'slots of y' and 5' slot of x' thus M = 3/5 = 0.6

thus y = 0.6*x + c

So if you want to know what y is when x is 5 for example, put five in the place of 'x', and put the point of intercept in as C.

.165"

Can be anything that can clamp to pieces together so they're in the right position to be welded.

Firstly, let us define artillery as a proper military authority would. Artillery is any ground-based external fire support designed to aid and assist ground infantry forces by supressing and destroying enemy units. Conventionally, when we talk artillery, we mean big cannons... but bear in mind that various rockets and missles are categorized as artillery too. For the sake of this, however... we are talking cannons.

Artillery cannons are broadly categorized in three groups:

The Gun: has a low trajectory angle and a very high projectile velocity (we see these mainly on ships)

The Mortar: has a high trajectory angle and a low projectile velocity (lobs rounds up-and-over to fire into defilade and rain rounds overhead, maximizing explosive damage)

The Howitzer: low to high angle, medium velocity (most versatile)

Essentially all of these weapon systems are no different than any other firearm (propellant ignites via a primer, hot gases rapidly expand forcing the round out of the barrel) except that they can be quite large and the rounds are typically explosive. Where the magic happens is how you shoot one accurately at a target you cannot see. I will explain as best as possible without getting overly complicated:

There are 3 elements necessary to accurately deliver artillery fire... the Forward Observers (FOs), the Fire Direction Control Center (FDC), and the guns themselves. FOs embed themselves with infantry and serve AZ the 'eyes'. They are trained to call for fire, knowing how to ID targets, estimate range, and interact with the FDC in general. Standard infantry can often perform this duty in emergencies as well, in fact all ground based military combatants really should know how to at least halfway do it in a pinch.

They contact the FDC, and through mathematical equations (done now by computers but traditionally by chart and sliderule) they convert the raw data from the FO to useable data for the guns in the form of an '11 element order'... when the guns hear it, sounds like this:

FIRE MISSION (warns them that they are receiving data)

BATTERY 2 ROUNDS (tells which guns fire how-can vary)

SPECIAL INSTRUCTIONS _______(gives any spec. Inst. Like if waiting to actually fire on command. Can be left blank)

LOT _____(lot designator for ammo type, to make sure you pull from correct pile

CHARGE ______, ______ BAG (tells propellant bag color and charge strength, determines range)

SHELL ______ (what kind of round type, such as high explosive, smoke, illumination)

FUZE _______ (fuse type- point detonating, timed, proximity)

TIME_______ (if timed fuse, the time comes here, if not, can be skipped)

DEFLECTION_______ (this gets tricky-stay with me. A deflection is an angle off of a known line or" azimuth" that the gun battery has already aligned itself to. This DEFLECTION is a 4 digit number that rotates a sight on the gun. The gunner enters the number and adjusts the gun to bring his known aiming point-which are usually red and white stakes which have been set up-into view.)

QUADRANT_____(number 3 or 4 digit, the assistant gunner puts it in and it turns his 'sight" (called a quadrant) and he simply elevates the gun until the quadrant is leveled again (evidenced by leveling bubbles)

At this point the piece is ready to fire accurately and, barring any special Instructions, is free to do so.

yes there is i recently bought one at a yardsale adn am looking for a manual on it. i am currently taking it apart for cleaning and cann't figure out how to take the main section apart. it is a single shot and has a 3" chamber.

Seam welding- resistance welding process involving the use of (normally) copper or copper alloy rollers to simultaneously pass high current (10^4 amps and usually in pulses) and apply pressure to bond a lap seam between two pieces of sheet metal.

Percussion Welding- arc welding process involving the use of a capacitor bank to bond on the order of milliseconds. A high current electric arc is developed between the items to be joined, and the items are rapidly accelerated together.

hala bira

TDBFP = Turbine Driven Boiler Feed Pump

Nano Technology is a hot Topic.It is being used everywhere .I have and am writing articles on Nano Technology and would be soon publishing.I am a Textile Consultant.Yu can get Jobs anywhere wherever yu want.

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