Define TWIC

On Class 2 pipe, What percentage of pipe must be NDT tested?

Hazard recognition by inspector - slips, trips, falls, pinch points?

Exceptions to installed pipe off shore between 12ft and 200 feet must be installed so that the top is below natural bottom is that it is held in place by___________(Exception , except in Gulf of Mexico) What standard covers this?

Position ___________________, as necessary, to reduce trenchline
erosion and minimize the volume and velocity of trench water flow at
the base of slopes. They are intended to _______ an open trench.