2) TO CONVERT FROM RADIANS TO DEGREES: Multiply the number of radians by the conversion factor 180 OVER PI. For instance, to convert from 2 pi over 9 radians into degrees, you would multiply 2 pi over 9 by the fraction quantity 180 degrees over pi radians. There are 360 degrees total in one full circle.

# What is the degree of PI over 9?

## What is the average life expectancy of an underwater welder?

Kyla then took a larger sample, and found the average age of underwater welder deaths between 35 – 40 (not conclusive, but based on her results). Most underwater welders go to diving school at age 20. If welder-divers are dying at ages 35 – 40, they’ve most likely been working in the field for 10 – 15 years.

## How long do you have to go to school to be an underwater welder?

If commercial diving and general welding are a big part of the curriculum, the program will generally be longer—anywhere from two to five years. On the flip side, a more specialized program that concentrates solely on underwater welding skills can sometimes be completed in as few as six months.

## How much does it cost to go to underwater welding school?

The underwater welding school cost comes to an average of $14,901. This rate combines tuition from 16 underwater welding schools around the world. The most expensive three schools cost $21,800 – $23,400, while the least costly range from $2,800 – $4,755.

## What skills do you need to be an underwater welder?

If you believe becoming an underwater welder is right for you, these are the minimum requirements you will need to possess:
High school Diploma or GED.
Ability to swim.
Mechanical aptitude.
Commercial Diving Certification.
AWS Certified Welding Training.

## How Underwater welding is done?

Wet welding. Wet underwater welding directly exposes the diver and electrode to the water and surrounding elements. Divers usually use around 300–400 amps of direct current to power their electrode, and they weld using varied forms of arc welding.

## What kind of education do you need to be an underwater welder?

Essential InformationRequired EducationCompletion of the underwater welding specialist training program offered exclusively by the Commercial Diving AcademyProjected Job Growth (2014-2024)37% for commercial divers*Median Salary (2015)$50,470 for commercial divers*

## How do you become an underwater welder?

Steps
Prepare to spend a substantial amount of money for your education and certification.
Become a certified commercial diver.
Take a dive physical, even if the commercial dive school you apply to doesn’t require one.
Get certified as a welder.
Attend an underwater welding school.

## What is a underwater welder job description?

Underwater welders are required to work with different procedures and types of equipment. Welder-divers are required to perform various duties that include fitting and rigging, inspection and non-destructive testing, drafting, underwater photography and underwater cutting.

## What do you do as an underwater welder?

Instead of the gas weld rods used on dry land, underwater welders use special electric arc welding rods. Most underwater welding is done with the help of a dry chamber system, which is used to keep water from the work area. These are called hyperbaric chambers or habitats.

## What companies hire underwater welders?

Top 10 Diving Companies with Underwater Welding Jobs
Bisso Marine.
Midco Diving & Marine.
Dryden Diving, Inc.
Subsea Global Solutions.
Phoenix International (Underwater Welding Specialty)
Dive-Tech International, Inc.
US Underwater Services.
Logan Diving & Salvage.

## How does an electric arc welder work?

Any arc welding system in which the electrode is melted off to become part of the weld is described as metal-arc. In carbon or tungsten (TIG) welding there are no molten droplets to be forced across the gap and onto the work. Filler metal is melted into the joint from a separate rod or wire.

## What is the difference between MIG and TIG and arc welding?

The major difference between Mig and Tig welding is that one process uses a continuously feeding wire (MIG) and the other you use long welding rods and slowly feed them into the weld puddle (TIG). The technical names for these are metal inert gas (MIG), and tungsten inert gas (TIG).

## What is stick welding called?

Shielded metal arc welding (SMAW), also known as manual metal arc welding (MMA or MMAW), flux shielded arc welding or informally as stick welding, is a manual arc welding process that uses a consumable electrode covered with a flux to lay the weld.

## Is stick welding MIG or TIG?

TIG welding produces quality welds. While costing more than MIG or stick-only welders, a single TIG/stick machine gives the user great flexibility. Shielded Metal Arc Welding (Stick) This process uses a consumable, flux coated electrode containing mild steel, stainless steel, cast iron or various other alloys.

## What is a saw Weld?

Submerged arc welding (SAW) is a common arc welding process. The first patent on the submerged-arc welding (SAW) process was taken out in 1935 and covered an electric arc beneath a bed of granulated flux. When molten, the flux becomes conductive, and provides a current path between the electrode and the work.

## How do you convert degrees to radians in terms of pi?

Steps
Write down the number of degrees you want to convert to radians. Let’s work with a few examples so you really get the concept down.
Multiply the number of degrees by π/180. To understand why you have to do this, you should know that 180 degrees constitute π radians.
Do the math.
Simplify.
Write down your answer.

## How many degrees is pi 6?

Degrees and RadiansAB30 degreespi/6 radians45 degreespi/4 radians60 degreespi/3 radians90 degreespi/2 radians

## How many degrees is pi?

The point is that pi radians is equal to 180 degrees. Radians are a unit of measurement for angles, just like degrees are, and pi is just the number of radians that makes up that angle. Just as one radian is equal to 57.3 degrees (approximately).

## What is 1 radian in terms of pi?

It follows that the magnitude in radians of one complete revolution (360 degrees) is the length of the entire circumference divided by the radius, or 2πr / r, or 2π. Thus 2π radians is equal to 360 degrees, meaning that one radian is equal to 180/π degrees.

## Can linear speed be measured in degrees?

In linear or straight-line motion, we measure speed by looking at how much distance is covered each second. You can do that in circular motion too, but it’s often better to use angular speed, ω. Angular speed measures the angle of a complete circle (measured in radians) covered per second.