Given a 210-foot TT bridge. What is the position of launching-nose links? - answer30 feet & 40 feet How many personnel does the routine repair detail consists of? - answer6 How many personnel does the maintenance party usually consist of for important bridges subject to enemy action? - answerThe entire assembly crew What is the required safety setback on an unprepared abutment if the bank height is 6 feet? - answer1.5 x 6 feet = 9 feet Given a 140-foot TS bridge with grillage type 1 on both the near shore (NS) and far shore (FS). The far-bank seat is level with the near-bank seat. What is the position of the launching-nose links? - answer20 feet & 40 feet How is the initial bridge length determined? - answerBy adding the width of the gap, the safety setbacks, and the roller clearances What is the purpose of construction rollers? - answerAid in inserting the launching-nose links and provide clearance between the links and the ground How many NCOs and enlisted members are on the transom crew to construct a TT Bailey bridge? - answer2 NCOs and 28 enlisted members What are the different types of stringers? - answerPlain and Button How many unloading parties are needed for a 100-foot DS bridge? - answer5 unloading parties How far should the extra set of plain rollers (called construction rollers) be placed temporarily behind the rocking rollers when determining longitudinal spacing? - answer12 ½ feet What is the center-to-center roller spacing? - answer14 feet 10 inches Where are all of the measurements taken from for the rollers during site layout? - answerThe center of the roller to the center of the next roller How many total personnel are needed to construct a TD Bailey bridge? (Manpower only) - answer98 personnel How many transoms per bay are required to support vehicles over class 70? - answer4 - two in the middle and one at each end of the panel What is the assembly time for an 80-foot SS bridge during daylight with trained personnel? - answer2 hours What is the longitudinal spacing between plain rollers? - answer25ft What is the maximum lift obtainable using launching-nose links? - answer94 1/2 inches