Pick up the incorrect statement from the following: A. Channelization of pavement is caused by constant use of tri-cycle gears of aircraft B. Blast pads are used over cohesion-less soils to resist erosion due to tremendous speed of the jet blast C. Over-run areas of at least 300 m length on either side of the runway are provided D. None of these

Channelization of pavement is caused by constant use of tri-cycle gears of aircraft
Blast pads are used over cohesion-less soils to resist erosion due to tremendous speed of the jet blast
Over-run areas of at least 300 m length on either side of the runway are provided
None of these

The correct answer is A. Channelization of pavement is caused by constant use of tri-cycle gears of aircraft.

Channelization of pavement is caused by the following:

  • The weight of the aircraft
  • The pressure of the tires
  • The friction between the tires and the pavement
  • The water on the pavement

The tri-cycle gear of an aircraft is a type of landing gear that has two main wheels and a nose wheel. The main wheels are located near the center of the aircraft, and the nose wheel is located at the front of the aircraft. The tri-cycle gear is designed to provide stability and control during takeoff and landing.

The tri-cycle gear does not cause channelization of pavement. Channelization of pavement is caused by the factors listed above.

Blast pads are used over cohesion-less soils to resist erosion due to tremendous speed of the jet blast.

Over-run areas of at least 300 m length on either side of the runway are provided to allow aircraft to come to a safe stop in case of an emergency.