0
What else can I help you with?
When welding in confined spaces you must?
dfc
Why test for polarity in welding?
Different material welds differently depending on polarity. There are also different types of welding rods, so polarity must be tested.
How does welding damage eye sight?
An electric welding arc produces ultraviolet light and the UV light will damage the retina. With a good welding helmet, your eyes will be protected, but you must have the proper shade (somewhere between 9 and 14 depending on your amperage) and if using an auto-darkening helmet, it must switch on quickly. (1/25000 of a second)
What is arc welding answer?
Arc welding is a type of welding using electricity to heat and fuse metal together. In order to control the process the heat must be controlled by varying the current. MIG (Metal Inert Gas) welding uses an inert cast to protect the weld from the air at extreme temperatures during the welding process. You can find a more detailed explanation of <a href=" http://www.trade-equip.co.uk/blog/?p=969 ">Arc Welding here</a>
What makes a good welding helmet?
a good welding helmet must be tolerable to very high temperatures. It should be large enough to protect your face and neck. It should be light in weight. It should have a comfortable headband.
What must be done to prevent porosities when there is a high wind velocity?
To prevent porosities in welding when there is high wind velocity, it is important to create a windbreak around the welding area. This can be achieved by using welding screens or windshields to reduce the impact of wind on the molten metal. Additionally, adjusting the welding parameters and techniques to suit the windy conditions can help minimize the formation of porosities.
High wind velocity can cause poroties in weld what must be done to prevent this from happening?
To prevent porosities in welds caused by high wind velocity, you can consider using windshields or barriers to block the wind during welding. Additionally, adjusting the welding parameters such as voltage, current, and shielding gas flow can help improve weld quality in windy conditions. It's also important to ensure proper cleaning of the welding surface and using correct welding techniques to reduce contamination.
How do you weld uranium?
Welding uranium requires special expertise and precautions due to its radioactive properties. It is typically done using a process known as electron beam welding, which minimizes the heat-affected zone and the risk of contamination. Strict safety measures must be followed to protect the welder and prevent the spread of radioactive particles.
When welding in confined spaces you must?
dfc
What can be done to prevent Ozones from hurting people?
To prevent ozone hurting people, CFC's must be banned. They are the ones that deplete ozone.
Why is a transformer rectifier often prefferred for smaw?
SMAW stands for shielded metal arc welding. The rectifier used in the welding machines must be referring to this type welding.
What must be done to waste water collected from landfills that will prevent the pollution of groundwater?
treated before it is used
In order to contain groundwater a layer of subsoil must have porosity that is it must have empty spaces or poorest in order to allow groundwater to easy pass through this up so?
Porosity is the measure of empty spaces or pores in a material like subsoil. A higher porosity allows groundwater to flow more easily through the soil, helping with containment or storage. Coarser materials like sand have higher porosity and permeability than finer materials like clay.
How is the root opening size determined in welding?
the root opening is the distance between joint members at the root of the weld before welding. the root opening must be accurate so that excess welding is not necessary.
Why test for polarity in welding?
Different material welds differently depending on polarity. There are also different types of welding rods, so polarity must be tested.
A welding cable must not have a splice within how many feet of the welder?
5 feet
What must be done if a roof has no ceiling joists?
Better put them in. Something has to hold the roof or roof panels up and prevent them from holding water.
