NASCLA PRACTICE EXAM 3 Questions With 100% Correct Answers

NASCLA PRACTICE EXAM 3 Questions With 100% Correct Answers Where lateral restraint is required quickly, a practicable method of supporting the walls of an excavation is to use internal sloping braces. - answerinternal sloping braces A load test shall not be made until that portion of the structure to be subjected to load is at least ___ old. - answer56 days Openings in concrete walls are made by setting ___ into the form at the required position. - answerbucks Bucks should be braced ___ so that concrete pressure will not distort their shape. - answerhorizontally, vertically and diagonally The aggregates used in making concrete usually occupy ___ of the total volume. As a result, the type and quality of the aggregates have a major influence on the properties of concrete. - answer60%-80% A good choice of compaction equipment if you have a wide trench - answerSheepsfoot rollers For deep trenches and unstable ground, a ____ is the best shoring system - answertrench box If it's more than ___ above the pipe, the ditch will be unsafe - answer5 feet