NWSA TT1: Questions With Correct Solutions (Pass!)
What is the minimum force that a positioning system anchorage must be able
to withstand? Right Ans - 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?
Right Ans - 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? Right Ans -
IR can change cells and molecules in biological organisms
When is a trained signal person necessary Right Ans - When a crane can
physically enter a powerline restricted area.
What three ways can a capstan hoist be powered Right Ans - Electric Gas
and Hydraulic
When using tape and butyl to weatherproof a ground kit what is a critical step
in the process? Right Ans - Always cut the tape with sciccors
According to regulations, what is the maximum arresting force allowed to the
human body? Right Ans - 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 Right
Ans - 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?
Right Ans - Annually
What is a crown block? Right Ans - Upper sheave assembly attached to the
tower. Sheave assembly = pulley or block
What is the minimum force that a positioning system anchorage must be able
to withstand? Right Ans - 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?
Right Ans - 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? Right Ans -
IR can change cells and molecules in biological organisms
When is a trained signal person necessary Right Ans - When a crane can
physically enter a powerline restricted area.
What three ways can a capstan hoist be powered Right Ans - Electric Gas
and Hydraulic
When using tape and butyl to weatherproof a ground kit what is a critical step
in the process? Right Ans - Always cut the tape with sciccors
According to regulations, what is the maximum arresting force allowed to the
human body? Right Ans - 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 Right
Ans - 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?
Right Ans - Annually
What is a crown block? Right Ans - Upper sheave assembly attached to the
tower. Sheave assembly = pulley or block
