Grade
What is the minimum force that a positioning system anchorage must be able to withstand?
- correct answer 2 times the MAF(Maximum anticipated force) or 3,000 lbs
If a synthetic rope has a breaking strength of 6,600 lbs and a bowline knot is tied to make a lifting eye
what is the maximum gross load that can be lifted?
- correct answer 660 lbs. Synthetic rope has a safety factor of 10:1. That includes the weakening factor
of the knot
Exposure to ionizing radiation dopes what to the human body?
- correct answer IR can change cells and molecules in biological organisms
When is a trained signal person necessary
- correct answer When a crane can physically enter a powerline restricted area.
What three ways can a capstan hoist be powered
- correct answer Electric Gas and Hydraulic
When using tape and butyl to weatherproof a ground kit what is a critical step in the process?
- correct answer Always cut the tape with sciccors
According to regulations, what is the maximum arresting force allowed to the human body?
- correct answer Maximum arresting force allowed on the body is 1800 lbs. But our y-landyards reduce
the force to half that
What is the minimum number of ground kits installed in a single run
- correct answer 3. (1 at the top above the hoisting grip. 1 at the base of the tower on the vertical run, 1
at the cabinet)