Pipefitting and Welding Period 2 (CND) Flashcards
Who is responsible for the personal safety of everyone in the shop?
The individual worker
Exposure to infrared light without proper eye protection can cause?
Retina damage
Temporary blindness is caused by the eyes being exposed to high levels?
Visible light
Which type of material offers the best protection against sparks and molten slag?
Leather
What type of gloves are recommended for oxyfuel cutting?
Dry-tanned leather gauntlet style
When would you use protective screens if you were performing an oxyfuel cutting operation?
If there were other workers nearby
Which type of radiant energy can cause welding flash?
Ultraviolet light
Permanent eye damage in the form of cataracts or retina damage may result from over exposure to which harmful light ray?
Infrared
Welding with wet gloves increases the risk of?
Electrical shock
When welding on metals plated with cadmium you should have on?
appropriate respiratory protective equipment.
Which metal, when heated or welded, can produce metal fume fever if the fumes are inhaled?
Zinc
Fumes are?
Small condensed particles of metal that have vaporized.
When oxygen reacts with ultraviolet light from welding, the gas produced is?
Ozone
File handles should be on files because?
They reduce the risk of injury.
The most versatile type of square is the?
Combination square
What is the recommended length of a wrap-a-round fro marking a straight line around a pipe?
Twice the pipe circumference.
C-clamps are sized according to the?
Distance the clamp opens.
Files are classified by the?
Length, Shape and Cut.
Why is filling done only on the forward stoke?
Because dragging the file backwards will break the teeth.
A safety specification to consider when selectin a grinding stone or disc is?
The RPM rating of the stone or disc.
Safe cutting of angle iron in a cut-off saw requires?
One vertical leg of the angle iron against the adjustable block of the clamping device.
It is a pictograph used to indicate the desired type of weld?
A Weld Symbol.
It is an assembled symbol giving all the information necessary for preparing and/or welding the joint.
A Welding Symbol
The tail on a welding symbol is used for?
Information that cannot be put into a symbol form.