Mechanical Engineering

There are several types of censors:

1 Acoustic, sound, vibration

2 Automotive, transportation

3 Chemical

4 Electric current, electric potential, magnetic, radio

5 Environment, weather

6 Flow

7 Ionising radiation, subatomic particles

8 Navigation instruments

9 Position, angle, displacement, distance, speed, acceleration

10 Optical, light, imaging

11 Pressure, force, density, level

12 Thermal, heat, temperature

13 Proximity, presence

It means, that the Weld Bead/ Weld Metal must be very well blended with the Parent Material/ Base Metal. There shall be a smooth transition between the Base Metal and the Weld ( Face or Root ) Reinforcement without any sharp or sudden changes ( e.g. Sharp Edges- commonly seen on the weld toes-, Peaks, Metal Inclusions- filler wire/metal/material inclusion-, dents, sudden variations or deviations in the weld dimensions...). ..You're gonna be able to see more of this requirements in the aerospace industry.

The Chosen One

to allignGirth gear the min tolerance should be .2mm to 0.9mm

Pelton wheel could be used to lift water from a lower source (lake or something) to pour into a high place. Another use, it could be used to dig into the earth, the wheel have the shape of a milling cutter, it can open channels in the ground or something. It could also be used to measure the speed of a fluid, if connected to a dynamo meter, the speed of flow could be read via voltage. These are some applications.

BY:

FAISAL RAFIQUE

To prevent damage to facilities, for instance a gas pipeline.

back hand welding is when you pull the welding rod or whatever it is that you are using and forehand is when you push it ahead

No, although having the extension makes it easier to inadvertently hold it crooked, which can make it less accurate.

Stop Boiler Valve (or Crown Valve) is installed on an outlet line of a boiler. It's purpose is isolation of a boiler from a downstream steam line. Its position may be either open or close, it cannot be used for throttling of steam.

Attached to a gear are many tires. The tires are used the land the aeroplane. That is why it is called landing gear.

Technically speaking, MIG welding is arc welding because it uses an intensely hot electrical arc to heat and join the metal together. Usually arc welding means stick welding. The difference between the processes is the manner in which the filler metal is applied. With MIG welding, the filler metal is usually applied with a wire fed through a gun type device with an inert gas such as argon shielding the weld. Arc (or stick) welding uses a solid electrode of the same type of metal as is being joined shielded by a layer of flux. The method of welding depends on the user's skill and what is to be welded.

If you are talking about knives, a bolster is the part that connects the handle to the blade. French style bolsters look perfectly round in profile. German style bolsters look oblong, sort of like a flattened French bolster.

The horizontal beam above a door or window is sometimes called a lintel. This part of the door or window is a portion of the frame in most cases.

Viruses self-assemble, but elephants (perhaps) self-organise. Self-assembly doesn't need external input energy perhaps in self-organisation extranal energy input is required to form patterns.

ANSI B18.1.1 is a standard for allowance in the thread of bolts and nuts, in which values of major dia, pitch dia etc is given for different classes of bolts and nuts.

All modern submarines typically have a food stores loadout of 90 days (i.e., enough food onboard for the crew for 90 days), though that's usually not the case unless an extended submerged deployment is ordered. Normal operations for Fast-Attack submarines generally keep them in port often enough to replenish stores used while at sea, and FBM submarines normally deploy for 90 days so they have a 90-120 day loadout before they leave.

For Fast-Attacks going on longer deployments, enough fresh, frozen, and canned stores are brought aboard to cover at least 90 days for all crew members aboard. It can get pretty packed in some boats; there's never enough room for everything, so canned stuff usually gets secured on the decks in various spaces, and you have to walk on them until it gets used.

In extreme circumstances, submarines can be resupplied at sea, though it's a very rare occurrence. If a boat is in an operational area where they can't be resupplied easily, rationing will take place until such time as supplies can be replenished.

As an example, during our '86 trip to the Arctic/North Pole, we lost our freezers about 2 weeks out. One of the Arctic Ice Stations we surfaced near helped us replenish our lost food stores. To this day, I will rarely eat ham and cheese sandwiches, since that's about all we had.

5lb cans of coffee are arguably the most precious item brought aboard, as coffee is just something a sailor can't do without.

In a helocopter, to change from hovering to flying forward, you adjust the cyclic. You push it forward, which increases the pitch of the rotor at the rear, decreasing it at the front, which tilts the aircraft forward, causing it to move forward. You also adjust the collective up, to increase the overall pitch, causing the aircraft to go up, because you want to quickly gain altitude in order to have a safe margin to auto-rotate in case the engine fails.

it is injection moulded

we use water for maching in WJM, and abrasives in AJM.

New Canaan, CT

Fontargen E206 is an electrode for joining and surfacing of pure copper. DIN 1733: El Cu AWS/ASME/SFA 5.6 : E CU Cu = 97.5%, Ni = 1.5%, Mn = 0.5%, Fe = 0.5% Tensile strength 280 N/mm2 Elongation (l=5d) 34% A sufficent pre heating of the parent metal is a necessary condition for obtaining the given values

no

two types of pump

1- Rotodynamic

2- positivedisplacement

The primary element creates a pressure drop across the flow meter by introducing a restriction in the pipe, and this engineered restriction enables Bernoulli's equation to be used for a flow rate calculation.

60,000 btu