bending 90's and offsets

what mark on the bender do we use to indicate the back side of a 90 degree bend

(a)  

the notch is also sometimes called the (a)  

the shrinkage amount for a 1/2 90 degree bend is (a)   inches

what is the shrinkage amount for a 22.5 degree bend ?

(a)  

what is the constant multiplier for a 22.5 degree offset

(a)  

what is the constant multiplier for a 30 degree offset

(a)  

what is the shrinkage amount for a 30 degree offset

(a)  

what is the total shrink of a pipe when using a 30 degree offset to overcome a 14 inch obstruction

• 3.5 inches

• 2.625 inches

• 28 inches

• 36.4 inches

what is the distance between bends when using a 22.5 degree offset to overcome a 12 inch obstacle

• 3 inches

• 2.25 feet

• 31.2 inches

• 24 inches

Scenario: you have a 10 inch obstruction that is approximately 32 inches away from your starting point. You are using a 30 degree bend. at what distance would you place your first mark?

• 20"

• 32"

• 34.5"

• 62.25"