(If this appears correctly) it should be ÂµA but it's quicker to type uA. Answer: UA stands for Urine Analysis.. When you pee in a cup and the doctors take it and analyze it to see if you or whoever has done any drugs or drank any alcohol in the past two weeks. Microamperes. The u is the closest letter many computer keyboards have to the Greek mu symbol.
Do not blind other drivers with your high beam headlights. Dim your lights by switching to low beams before you are 500 feet from a vehicle coming toward you. If you are following another vehicle, change to low beams when you get closer than 300 feet. Use your high beams whenever possible as long as it is not illegal (i.e., in open country when other cars are not near or on dark city streets when no other traffic would be affected by your high beams).
A big factor in this distance is the relative speeds of the two vehicles. As a point of reference, consider that on a public highway, if the vehicle to be passed is traveling at a speed of 20 or 30 mph, the minimum recommended passing-sight-distance for the passing vehicle is 800 or 1100 feet, respectively.AUL ROAD INSPECTION HANDBOOK Note: Scales are for feet or meters; to extend range, multiply or divide all scales by 10. Example: For a chord of length, C, of 600 feet, and a Middle Ordinate, M, of 20 feet, the radius of the curve is 2260 feet.