NWSA TT1 EXAM QUESTIONS AND ANSWERS
What is the minimum force that a positioning system anchorage must be able to
withstand? - Answers- 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? - Answers- 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? - Answers- IR can
change cells and molecules in biological organisms
When is a trained signal person necessary - Answers- When a crane can physically
enter a powerline restricted area.
What three ways can a capstan hoist be powered - Answers- Electric Gas and
Hydraulic
When using tape and butyl to weatherproof a ground kit what is a critical step in the
process? - Answers- Always cut the tape with sciccors
What term is used to describe the rules written by the department of labor? - Answers-
Regulations
According to the FAA how tall must each band of obstruction paint on a towers of 700'
and under be? - Answers- Each band must be 1/7th of the total height of the structure
What class of rigging plan is used for demolition work? - Answers- Class IV (4)
What is the importance of identifying cantilever distance? - Answers- To read the gin
pole load chart
What class of rigging plan is required when you are picking a gross load of 300 lbs -
Answers- Class 1
According to regulations, what is the maximum arresting force allowed to the human
body? - Answers- 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 - Answers- 3. (1 at
the top above the hoisting grip. 1 at the base of the tower on the vertical run, 1 at the
cabinet)
how often must a fire extinguisher be inspected by a qualified person? - Answers-
Annually
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