As per ICAO recommendation, the rate of change of longitudinal gradient per 30 m length of vertical curve for A and B type of airports is limited to a maximum of

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