Air Traffic Controller Navy Exam

Minimum distance between centerlines when twin engine prop driven aircraft conducting approaches on parallel runways {Ans: 500 ft}Steady green to aircraft on the ground {Ans: Cleared for takeoff}What clearance abbreviation means cleared to land? {Ans: L}What clearance abbreviation means cleared through (for landing and takeoff through intermediate point) {Ans: T}The standard emergency phraseology for a pilot requesting an arrested landing is {Ans: Barrier Barrier Barrier" or "Cable Cable Cable""}What miscellaneous abbreviation means precision approach? {Ans: PA}