Contractors License questions with correct answers

A concrete masonry foundation wall extends below grade and will require large coating using Portland cement mortar. What is the minimum allowable thickness? CORRECT ANSWER 3/8 inch How long will it take to excavate a trench that is 8 foot deep by 4 feet wide by 100 feet long? The hourly production rate is 40 BCY and the operator has average ability with an efficiency factor of 75% CORRECT ANSWER 4 hour what is the minimum slope for a swale if it is located within 10 feet of a foundation and and is used as part of the method for diverting water from the foundation CORRECT ANSWER 2% A foundation drain shall extend past the outside edge of the footing at least how far? CORRECT ANSWER 12 inches 750 feet of pipe is being laid at 0.5% slope. On a topographic map that has a 6 inch contour intervals, approximately how many intervals will be depicted on the Mao from one of the pipe to the other? CORRECT ANSWER 6 contour intervals A topographic map is being used to determine cut and fill requirements. The contour intervals is 2 feet. Across a distance of 200 feet there are 10 contours. What is the slope of the grade? CORRECT ANSWER 10:1 Before excavating for a new building, how should subsoil conditions be determined? CORRECT ANSWER Conducting test borings