Chapter 3: Hand Bending - Offsets and Kicks

Questions and Answers

What is the distance multiplier for a 5 degree bend?

11.4

What is the distance multiplier for a 10 degree bend?

5.76

What is the distance multiplier for a 15 degree bend?

3.86

What is the distance multiplier for a 22.5 degree bend?

2.61 Signup and view all the answers

What is the distance multiplier for a 30 degree bend?

2 Signup and view all the answers

What is the distance multiplier for a 45 degree bend?

1.41 Signup and view all the answers

What is the shrink constant for a 5 degree bend?

.044 or 1/16 Signup and view all the answers

What is the shrink constant for a 10 degree bend?

.087 or 1/16 Signup and view all the answers

What is the shrink constant for a 15 degree bend?

.132 or 1/8 Signup and view all the answers

What is the shrink constant for a 22.5 degree bend?

.199 or 3/16 Signup and view all the answers

What is the shrink constant for a 30 degree bend?

.268 or 1/4 Signup and view all the answers

What is the shrink constant for a 45 degree bend?

.414 or 3/8 Signup and view all the answers

What is the formula used to find the shrink in a run of conduit?

shrink = constant x offset rise (S = C x O) Signup and view all the answers

What is the formula used to find the distance between bends on a piece of conduit?

distance between bends = offset rise x distance multiplier (D = M x O) Signup and view all the answers

What is the formula used for finding the amount of adjustment needed when making parallel offsets?

adjustment = constant x distance between centerlines (A = C x D) Signup and view all the answers

What is an offset bend?

A double conduit bend formed with two equal angles in opposite directions that is used to make a bend in a conduit run. Signup and view all the answers

What is shrink in the context of conduit bending?

The amount the run length is reduced when conduit is bent around an obstacle. Signup and view all the answers

For parallel offsets that are exposed to view, the bends must be adjusted relative to the first conduit.

True Signup and view all the answers

What is a kick in conduit bending?

A bend used to change direction in a conduit run. Signup and view all the answers

Parallel offsets can be made with conduit of different sizes by marking and bending at the center of each bend.

True Signup and view all the answers

Study Notes

Bend Distance Multipliers

5 degree bend distance multiplier: 11.4
10 degree bend distance multiplier: 5.76
15 degree bend distance multiplier: 3.86
22.5 degree bend distance multiplier: 2.61
30 degree bend distance multiplier: 2
45 degree bend distance multiplier: 1.41

Bend Shrink Constants

5 degree bend shrink constant: .044 or 1/16
10 degree bend shrink constant: .087 or 1/16
15 degree bend shrink constant: .132 or 1/8
22.5 degree bend shrink constant: .199 or 3/16
30 degree bend shrink constant: .268 or 1/4
45 degree bend shrink constant: .414 or 3/8

Formulas for Conduit Bending

Shrink Formula: shrink = constant x offset rise (S = C x O)
Distance Between Bends Formula: distance between bends = offset rise x distance multiplier (D = M x O)
Adjustment for Parallel Offsets Formula: adjustment = constant x distance between centerlines (A = C x D)

Key Concepts

Offset Bend: A double conduit bend formed with two equal angles in opposite directions, used to navigate around obstacles.
Shrink: The reduction in run length when conduit is bent around an obstacle.
Kick: A bend that changes direction in a conduit run.

True or False Insights

For visible parallel offsets, bends must be adjusted relative to the first conduit (True).
Parallel offsets can be accomplished with conduit of different sizes by marking and bending at the centers of each bend (True).

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Description

Test your knowledge on the distance multipliers for various bends in hand bending techniques. This quiz covers angle bends from 5 to 22.5 degrees, helping you to understand important measurements needed for precise work. Perfect for electrical or construction training.