What is the safety factor for pendants and standing ropes? - Answer 3/1 for usual
operations.
2.5/1 for Boom Erection
The safe working load (SWL) is ______ - the rated strength.
Will the effective weight of a built extension be greater or less than its actual
weight? - ANSWER Higher
How much twist is allowed in a crane hook? - The answer is none.
What is the horizontal distance a stand travels in one full rotation around the ropes
core? - ANSWER Rope lay or lay length.
What shortcomings do you look for in pendants or standing ropes? - ANSWER
More than two broken wires in a single lay length beyond end connectors.
More than one broken wire in a rope lies at an end connector.
What flaws in rotation-resistant ropes warrant their removal from service? -
ANSWER: Two random broken wires in six rope diameters.
Four broken wires in 30 rope sizes.
Two six-packs at 4:30
What flaws would disqualify a running rope from service? - ANSWER: Six
random damaged wires in one rope lay.
Three damaged wires in one strand, one lay.
,6-3
Snubbing a load is equivalent to _____ - ANSWER. Tie it off!
How are wire ropes oiled? - ANSWER Use a mineral-based lubricant.
How long is the annual inspection report kept? - ANSWER: Twelve months
How long is a monthly inspection report kept? - Answer: three months.
Who inspects a crane that's been idle for three months? - ANSWER Qualified
person
What is the boom angle minus the jib offset? - ANSWER Jib angle towards the
ground
Who performs the post-repair inspection? - ANSWER Qualified person
Who handles the annual inspection? - ANSWER A qualified individual
What is the extension on the side of the boom caller? - The answer has been stored.
What is the effect of weight on a lever concerning its position on the lever called? -
ANSWER Effective weight
What is the term for the force exerted by a crane's movement? - Answer: Dynamic
load.
, What does a bold or solid line on a load chart indicate? - ANSWER Separation of
structural capacities and stability capacities
What exactly is an A-rated fire extinguisher used for? - ANSWER Any material
that leaves behind ashes.
The gross load is the sum of all attachments, rigging, load, and, in some cases,
cable.
Who completes the monthly inspection? - A competent individual
Who performs the shift inspection? - A competent individual
Which is the most frequent duty cycle rating? - ANSWER 80%
Breaking strength is the ultimate strength.
What is the maximum value of an excluded angle? - Answer: 120 degrees.
What is the maximum wear rate on a crane hook? - ANSWER 10%
D is the diameter of the _____ - ANSWER sheave or load.
d is the diameter of the _____ - ANSWER. Wire Rope or Sling
What is the point at which a crane tips? - ANSWER Tipping axis (fulcrum point).
What force does an attachment exert on a crane? - ANSWER Effective weight
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