RIGGING AND WELDING SAFETY Flashcards
Name the two types of core in wire rope?
IWRC ( wire core )
Fiber Core
Describe regular lay and lang lay.
Regular Lay - wires in strands are laid the opposite direction of the strands.
Lang Lay - wires in strands and strands are laid the same direction.
When selecting wire rope what is the most important thing to consider?
ultimate load breaking strength.
Wire rope 45 tons - 1/2” diameter example D(2) x 45 = BS
1/2 x 1/2 x 45 = 45/4 = 11.25 tons
Fiber rope 42 tons breaking strength D(2)x42= BS
When choosing a sling what sling is more flexible than wire or fiber rope?
Synthetic
Using two slings to lift a load at what angle will each sling hold the equal weight of the load?
A 45deg
B 30deg
C 60deg
D 90deg
Identify the riggers rule formula when considering using two slings for lifting?
the method I prefer is
T= Tension
W= Weight
N= Number of legs
L= Sling length inches
V= Vertical height inches
T=W/N x L/V
What two shackles are most commonly used?
Screw pin Anchor
Screw pin Chain
Name the two best possible protective clothing material for welding?
Leather
Cotton
The two most common types of eye damage when welding?
Arc Flash
Cataracts
Selecting a filter lens when arc welding or oxy fuel cutting for a few minutes lift helmet and if _____ spots are seen use a _____ lens. If ____ spots are seen use a ______ lens.
LIGHT, DARKER
DARK, LIGHTER
For general arc welding what filter lens shade (Lens #) should be used?
shade 10
What type of fumes from ________ metal will create metal fume fever?
Zinc
Galvanized Steel
________and ________ gases is heavier than air, when considering welding and cutting in the shop?
Argon and Acetylene
How much psi is a full cylinder of oxygen. When stored at room temperature?
2200
What color is the hose on oxygen connections?
Green
