Mechanical Engineering

By the ability of the material of carbon steel, its called as IMPACT tested carbon steel

Back ward curved vanes only suitable for Better centrifugal force, because the pumping medium slip well when it rotating, because of centrifugal force pumping medium throw without restriction by impeller:

In boiler the feed is only liquid but in reboiler the feed may be any liquid. second is that, reboiler do partial vapourization but the boiler does complete vapourization

rotating motion

Nikolavs August Otto,German. The first practical "four-stroke" engine was patented by the Otto and Langen Company of Deutz, Germany. Nikolaus Otto was a salesman with a grocer when he read of Lenoir's two-stroke gas-driven internal combustion engine. Otto started a workshop in Deutz near Cologne, supported by Langen in 1863. He had a model engine built and improved upon the gas engine, making it a practical power source. The four-stroke Otto Engine was invented in 1876, and a large number of engines were produced under the patent of Otto and Langen. It was however, a German engineer named Gottlieb Daimler, who, carried out much of the development work on the engine. Daimler was at the time employed with Otto and Langen, and a substantial credit for the success is due to him.

Quite a mouthful here. First, dendritic inclusions are, by definition "random" when they occur. They can follow any axis of crystal structure, and, depending on the nature of the dendritic intrusion, can work "through" the crystal rather than along any axis of its structure. That kills about half the question. The idea of "equiaxial grain structure" in austenitic stainless steel (or any other kind of steel) is almost certainly incorrectly applied here. The crystalline structure of the steel will be defy ultrasonic tests for grain structure because the grains will be too small, will lie well beyond the resolution powers of ultrasonics. Certainly ultrasonics are used to look for inclusions and flaws as well as cracks and macrostructure deformation. But there are severe limits on what can be seen. Ultrasonics will not show anything on a small scale. Microstructure is best examined with x-rays and electron beam microscopes and other tools of micro-inspection.

Tapping in the furnace means " Taking out the liquid metal/ferro alloy" . It is a cyclic event.

The pipe wrench (in the US), Stillson wrench or Stillsons (inthe UK) is an adjustable wrench used for turning soft iron pipes and fittings with a rounded surface. The design of the adjustable jaw allows it to lock in the diametre frame, in such away that any forward pressure on the handle tends to pull the jaws tighter together. Teeth angled in the direction of turn dig into the soft pipe. They are not intended for use on hardened steel hex nuts or other fittings because they would ruin the the flats cut on to the head. However, if a hex nut is soft enough that it becomes rounded beyond use with standard wrenches, a pipe wrench is sometimes used to break the bolt or nut free of its position

Its Green for water

Sky blue for air

Black for effluent

Brown for diesel

Aluminum for staem

Red for fire extinguisher

There is difference between Indian standards and British standard colour

coding

Fluid pressure.

It matters less what you made and more what tools (ex. software tools) you have experience with, and whether they apply to the new product.

Of course you would have to show that you know something about guitars, so that they know you would make a good product.

Evaporator is said to be flooded type if liquid refrigerant covers the entire heat transfer surface. This type of evaporator uses a float type of expansion valve. An evaporator is called dry type when a portion of the evaporator is used for superheating the refrigerant vapour after its evaporation.

hi i am kashif iqbal, u asekd that how can we calculate the capacity of biler through heating surface its a very simple for example a boiler having heating surface of = 1425 sq ft applying thumb rule = 1425/260=5.48 tons

It all comes under Fluid dynamics/mechanics, and it's the same set of symbols for circuits. Many hydraulic symbols will include a drain to the tank. Pneumatic circuits use the atmosphere as their "tank".

a flathead screwdriver

It's the same thing as a hollow bone. That's one of the characteristics birds posse than enables them to fly (if their bones had the same weight as ours, they wouldn't be able to lift). Some dinosaurs had the same type of bones.

Hope it helped.

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This is a completely unanswerable question, as it depends on several factors: the composition of the steel in question (there are a great many different alloys that go under the colloquial name "steel"), the type of force being applied (tension, compression, etc.), the design geometries of the object in question, and the environmental factors around the steel (primarily, but not exclusively, the temperature)

.001" per 2" of diameter of face of coupling

A ball-peen hammer is a peening hammer used in metalworking. Though the process of peening has become rarer in metal fabrication, the ball-peen hammer remains useful for many tasks such as tapping punches and chisels.

Ball-peen hammers are divided into two classes: hard-faced and soft-faced. The head of a hard-faced hammer is made of heat treated forged high-carbon steel or alloy steel; it is harder than the face of a claw hammer. The soft-faced hammers are made from brass, lead, tightly wound rawhide, or plastic. These hammers usually have replaceable heads or faces, because they will deform, wear out, or break over time. They are used when there is the danger of damaging a striking surface.

The original function of the hammer was to "peen" riveted or welded material but today, the ball end of the hammer is most commonly used to expand and shape the free end of copper roves, light rivets and similarly, "setting" the rivet in place to complete the joint. Peening is also the method by which steel drums are formed and tuned.

A ball-peen hammer is also known as an engineer's hammer or a machinist's hammer and may be graded by the weight of the head. It is the mechanic's hammer of choice when making gaskets or driving drift pins.

This is used differently in different countries. But generally, if a welder is contracted to do say 100 weld joints, of a 1" pipe, then the total work involved is 100" dia welding work. If 100 weld joints of a 2" pipe is 200 weld work and so on.

The question should be not IS 1239 but the pipe. It is approximately 8.3 gm /cc

A sixteenth of an inch (1.5875 mm). Note: you need 16 revolutions to advance 1 inch., so it's obvious that one rev. is 1/16".

A double tube manometer measure pressure. Manometers use liquid in a column and balance it against the pressure that they are measuring.

depending on the diameter of the rod, generally there will be approx. 26 (+/- 1)

welding rods per pound.