Conduit Bending Quiz

Dog legs can be avoided when making offset bends by _____.

• maintaining the centerline for all bends

• making sure all bends are 90 degrees

• making sure all bends are 6" from the previous bend

• rebending everything for accuracy

When making bends on short lengths of conduit, the shoe may be prevented from creeping by

• clamping the conduit

• screwing a coupling onto the conduit

• filing a rough surface on the conduit

• wrapping a rag around the conduit

Which of the following will produce an offset in a conduit run?

• Improperly calculated sweep bends

• Two kick bends in opposite directions

• A small obstruction being crossed

• A single change in direction

A 30° kick has a hypotenuse of 10". Given that the cosecant of 30° is 2, determine the side opposite or how far off the surface the end of the kick needs to be.

• 5"

• 10"

• 15"

• 20"

The two dimensions an electrician must know when making a 90° stub bend are the _____.

• conduit diameter and rise

• bend radius and conduit diameter

• desired rise and take-up distance

• take-up distance and conduit diameter

Hydraulic benders are capable of bending rigid pipe up to and including _____.

• 2-1/2" in diameter

• 3" in diameter

• 4" in diameter

• 5" in diameter

A single change in direction of less than 90° is known as a(n) _____.

• elbow

• offset

• saddle

• kick

One of the characteristics of aluminum conduit is that it _____.

• is easy to bend consistently

• is lightweight

• has high ground impedance

• corrodes easily

When making concentric bends in conduit of different sizes, the first step in calculating the radius of a bend is to _____.

• calculate one-half the outside diameter of the innermost conduit

• determine the radius of the innermost bend

• determine the distance between the two runs of conduit

• calculate the outside diameter of the adjacent conduit

Which of the following is a type of bending shoe?

• Concentric

• Radial

• Segmented

• Axial