NWSA TT1 2025 Actual exam

What is the minimum force that a positioning system anchorage must be able to withstand? - 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? - 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? - IR can change cells and molecules in biological organisms When is a trained signal person necessary - When a crane can physically enter a powerline restricted area. What three ways can a capstan hoist be powered - Electric Gas and Hydraulic When using tape and butyl to weatherproof a ground kit what is a critical step in the process? - Always cut the tape with sciccors According to regulations, what is the maximum arresting force allowed to the human body? - 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 - 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? - Annually What is a crown block? - Upper sheave assembly attached to the tower. Sheave assembly = pulley or block Exposure to Non IR does what to the human body - Has thermal effects on the body An overhaul ball provides what function in the operations - Provides weight so the load line can travel back down to the ground. Its apart of the load How many olbs of force is one kilo newton? - 225 lbs = 1 kn 5000 = 22.5 kn