Welding Safety Flashcards
Light rays are dangerous for what distance?
They are dangerous for up to 50 ft including reflections.
What are the 3 types of light rays?
Visible Light.
Ultraviolet Rays.
Infra-red Rays.
What are visible Light Rays?
Visible light rays are those that you can see. From the source or reflected.
What are Ultraviolet Rays?
Ultraviolet rays are invisible. Cause burns to exposed skin and blister eyeballs.
What are Infra-red Rays?
Infrared rays are invisible. They penetrate deeply and can cause temperature increases and burns to exposed skin.
What is natural general ventilation?
Unlimited fresh air supply, outdoors.
What is mechanical general ventilation?
Occurs when air is pumped into the shop, passes through and is vented outdoors through ductwork, doors or windows.
What is local ventilation?
Exhaust fans that capture fumes at the source and exhaust them outdoors.
What are the three basic malfunctions you can experience with oxygen equipment?
Backfires.
Burnbacks.
Flashbacks.
