The distance between main gears is 10 m, and the distance of nose gear from centre of main gears is 30 m. If the angle of turning is 60°, the distance of centre of rotation from the nearer main gear, is

A. 78 m B. 150 m C. 300 m D. 450 m

A. Asphaltic concrete B. Rubberised tar concrete C. Plain concrete D. All the above

A. Ends of the runway B. Point of intersection of the obstruction clearance line and the extended plane of the runway surface, and the other end of the runway C. Point of intersection of the glide path and the extended plane of the runway surface and the other end of the runway D. Ends of the clear way on either side

A. 22.5 m × 22.5 m B. 30 m × 30 m C. 22.5 m × 30 m D. 60 m × 120 m