Questions And CORRECT Answers
What is the safety factor for pendants or standing ropes? - CORRECT ANSWER - 3/1 for
normal operations
2.5/1 for boom erection
Safe working load (SWL) is ______ - CORRECT ANSWER - Rated Strength
The effective weight of an erected extension would be higher or lower than its actual weight? -
CORRECT ANSWER - Higher
How much twist is allowed in a crane hook? - CORRECT ANSWER - None
What is the horizontal distance a stand takes for one complete rotation around the ropes core? -
CORRECT ANSWER - Rope lay or lay length
What deficiencies are you looking for in pendants or standing ropes? - CORRECT
ANSWER - More than 2 broken wires in 1 lay length beyond end connections
More than 1 broken wire in a rope lay at an end connection
What deficiencies are cause for removal from service in rotation resistant ropes? - CORRECT
ANSWER - 2 random broken wires in 6 rope diameters
4 broken wires in 30 ropes diameters
2 6 packs at 4:30
What deficiencies would remove a running rope from service - CORRECT ANSWER -6
random broken wires in 1 rope lay
3 broken wires in 1 strand in 1 lay
6-3
, To snub a load would be to _____ - CORRECT ANSWER - Tie it off
How is wire rope oiled? - CORRECT ANSWER - With a mineral based lubricant
How long is the annual inspection report kept? - CORRECT ANSWER - 12 months
How long is a monthly inspection report kept? - CORRECT ANSWER - 3 months
Who does an inspection of a crane that has been idle for 3 months? - CORRECT ANSWER -
Qualified person
What is boom angle minus jib offset? - CORRECT ANSWER - Jib angle to the ground
An inspection after a repair is done by who? - CORRECT ANSWER - Qualified person
Who does an annual inspection? - CORRECT ANSWER - Qualified person
What is the extension hanging on the side of the boom caller? - CORRECT ANSWER -
Stored
What is the effect of a weight on a lever proportionate to its placement on the lever called? -
CORRECT ANSWER - Effective weight
What is the force exerted on a crane by its movement called? - CORRECT ANSWER -
Dynamic load
A bold or solid line on a load chart is used to indicate what? - CORRECT ANSWER -
Separation of structural capacities from a stability capacities