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Crane Operation
Crane Operator Red Seal Certification
Wire Rope & Drum Operations
Knowledge Check
Wire Rope & Drum Operations
Knowledge Check
Knowledge Check
1 / 10
What is fleet angle on a crane drum, and why must it be controlled?
A
Fleet angle is the angle between adjacent drum wraps - excessive angle causes uneven spooling
B
Fleet angle is the angle of the boom from horizontal
C
Fleet angle is the difference in rope diameter between new and worn condition
D
Fleet angle is the angle of the wire rope from the sheave to the drum face - excessive angle causes the rope to spool unevenly, ride up over previous wraps, and suffer accelerated wear at the drum flange
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