RIGGING FINAL EXAM STUDY GUIDE 2026/2027

RIGGING FINAL EXAM STUDY GUIDE
2026/2027


Rigging Final Exam

Sheave and Cable

• The diameter of the sheave should be a minimum of 20 times the size of the cable.

Reeve System

• The most accurate method of determining the lead line pull for a reeve system is line by
line calculation.

Crane Measurement and Capacity

• The point on the crane used to measure the distance to the load is the crane center pin.

• The crane has the most capacity when the outriggers bring the wheels completely off
the ground.

• The best indicator that the outriggers have been properly blocked is when they are
parallel to the frame with three times the area of the bottom of the float.

Lattice Boom Crane Setup

• When setting up a lattice boom crane, the upper pins are installed first when
assembling, and the lower pins are installed first when disassembling.

Jib Capacity and Balance Tipping

• All factors (jib type, length, the offset, angle to horizon) have an effect on the capacity of
the jib.

• The balance tipping-axis of the crane can be described as the focal point of a crane.

Two Block Device and Steel Softeners