TEST BANK COMPLETE QUESTIONS
AND CORRECT ANSWERS
(ALREADY GRADED A+)
What are the 3 basic components of wire rope? - Answer- Strands, wires, and core
When should you check the LMI, anti-two-block, and all crane functions? - Answer-
Before each shift
A person inspecting a crane should have what kind of knowledge? - Answer- Practical
and theoretical
What does RCL stand for? - Answer- Rated capacity limiter
What does LMI stand for? - Answer- Load moment indicator
What inspection documentation must be kept for 3 months? - Answer- Monthly
inspection
What types of slings require tags? - Answer- All slings
Why is it a very dangerous practice to use signs of tipping (seat of the pants operation)
as an overload indicator? - Answer- Modern mobile cranes may produce a structural
failure before any signs of tipping occur
The safety factor for a chain sling is ? - Answer- 4 to 1
What is the safety factor for all other types of rigging? - Answer- 5 to 1
What might be considered as the perfect sling angle? - Answer- 60 degrees
What is the safety factor for pendants or standing ropes? - Answer- 3/1 for normal
operation
2.5/1 for boom erection
Safe working load (SWL) is - Answer- Rated strength
, The effective weight of an erected extension would be higher or lower than its actual
weight? - Answer- Higher
How much twist is allowed in a crane hook? - Answer- None
What is the horizontal distance a stand takes for one complete rotation around the
ropes core? - Answer- Rope lay or lay length
What deficiencies are you looking for in pendants or standing ropes? - Answer- More
than 2 broken wires in 1 rope lay beyond end connections, or more than 1 broken wire
in a rope lay located at an end connection.
2-1
What deficiencies are cause for removal from service in rotation resistant wire ropes? -
Answer- 2 randomly distributed broken wires in 6 rope diameters, or 4 randomly
distributed broken wires in 30 rope diameters.
2 six packs at 4:30
What deficiencies would remove a running rope from service? - Answer- 6 randomly
distributed broken wires in 1 rope lay, or 3 broken wires in a 1 strand in 1 lay
6-3
To snub a load is to ______? - Answer- Tie it off
How is wire rope oiled? - Answer- With a mineral based lubricant
How long is an annual inspection report kept? - Answer- 12 months
How long is a monthly inspection report kept? - Answer- 3 months
Who does an inspection of a crane that has been idle for 3 months? - Answer- Qualified
person
What is boom angle minus jib offset? - Answer- Jib angle to the ground
An inspection after a repair is done by who? - Answer- Qualified person
Who does an annual inspection? - Answer- Qualified person
What is the extension hanging on the side of the boom called? - Answer- Stowed
What is the effect of a weight on a lever proportionate to its placement on the lever
called? - Answer- Effective weight
What is the force exerted on a crane by its movement called? - Answer- Dynamic load