Airport Engineering Set 3

Air screw converts the energy given by the engine into speed ✘ The propellers which are driven by turbine engines, are technically called turboprops ✘ The aircrafts which obtain the thrust directly from turbine engine, are called turbo-jets ✘ All the above ✔

Approach zone survey is carried out to determine the elevations of the protruding obstructions above horizontal, conical and transitional surfaces ✘ The wind data of an air port is depicted in the form of a chart known as wind rose ✘ The landing and takeoff of the air craft is made against the wind direction ✘ All the above ✔

Approximate geometric centre of the landing area, is called air port reference point ✘ The boundaries of horizontal surface and conical surface are marked with reference to air port reference point ✘ The location of the air port on a map is the position of air port reference point ✘ All the above ✔

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 ✔

F.I.R. stands for flight information regions ✘ Radius of control area is 160 km ✘ Radius of control zone is 40 km ✘ All the above ✔

In single engine aeroplanes, the engine is provided in the nose of the aircraft ✘ In double engine aeroplanes, one engine on either wing is placed symmetrically ✘ In three engine aeroplanes, two engines are placed on both wings and one engine is placed in the tail ✘ None of these ✔

L.M.M. (low powered middle marker) ✘ V.H.F. (very high frequency) ✘ L.O.M. (low powered outer marker) ✘ All the above ✔

L.O.M. is installed at 7.2 km from the threshold ✘ L.M.M. is installed at 1.0 km from the threshold ✘ Localizer antenna is installed at 300 m from the other end of the runway ✘ Glide slope antenna is installed at the centre of the runway about 150 m on one side ✔

Landing speed is directly proportional to the wing loading ✘ Wing loading remaining constant, the take off distance is directly proportional to the powder loading ✘ Neither (A) nor (B) ✘ Both (A) and (B) ✔

Minimum turning radius of aircrafts decides the size of the apron and the radius of the curves at taxi-ends ✘ Take off and landing distances for an aircraft, determine the minimum runway length ✘ The length of the normal haul of the air craft decides the frequency of operation ✘ All the above ✔