117) If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in metres is given by the expression

118) If an ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the length of summit curve for a stopping sight distance of 80 m will be

119) Highway facilities are designed for

120) Enoscope is used to find

121) For highway geometric design purposes the speed used is