Beaufort scale is used to determine strength of winds direction of winds height

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strength of winds

Airport Engineering problems

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1. Pick up the incorrect statement from the following:
Options
A. Channelization of pavement is caused by constant use of tri-cycle gears of aircraft
B. Blast pads are used over cohesionless 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.

2. According to I.C.A.O. the recommended length of air ports is decided on
Options
A. sea level elevation
B. standard sea level temperature (15�C)
C. effective gradient percentage
D. all the above.

3. A gradient of + 0.08% is followed by a gradient of - 0.07%. If the permissible rate of change of grade is 0.003 per 30 metres, the length of the transition curve, is
Options
A. 150 m
B. 140 m
C. 160 m
D. 175 m

4. For the taxiways, the following statement is true
Options
A. The maximum longitudinal grade is 3%
B. The permissible rate of change of grade is 1%
C. The permissible transverse grade is 1.5%
D. All the above.

5. According to the International Civil Aviation Organisation (I.C.A.O.), the runway lengths of aerodromes, have been coded by
Options
A. Seven English alphabets
B. Last Seven English alphabets
C. First Seven English alphabets
D. First seven natural numbers.

6. Speed of
Options
A. sound at 0�C is 1190 km p.h.
B. sound varies 2.4 km p.h. per degree centrigrade rise in temperature
C. sound at 0�C is called one Mach
D. an aircraft flying at 2975 km p.h., is called 2.5 Mach
E. All the above.

7. Pick up the correct statement from the following:
Options
A. Runway edge from the landing side, is called threshold
B. Localizer indicates to the pilot his position with respect to the proposed alignment
C. The glide slope indicates the correct angle of descent
D. L.O.M. and L.M.M. help the pilot to judge his position for the runway
E. All the above.

8. The depressions and undulations in the pavement, are caused due to
Options
A. improper compaction of subgrade
B. impact of heavy wheel loads
C. punching effect
D. flexible gears
E. all the above.

9. Pick up the correct statement from the following:
Options
A. Air screw converts the energy given by the engine into speed
B. The propellers which are driven by turbine engines, are technically called turboprops
C. The aircrafts which obtain the thrust directly from turbine engine, are called turbo-jets
D. The aircraft which is filled with a fan infront of turbo-jet engine, is called turbofan propelled aeroplane
E. All the above.

10. Pick up the correct statement from the following:
Options
A. The distance between the points of intersection of the extreme tangents to the transition curve is kept greater than 7500 m x sum of grade changes at the point of intersection
B. The rate of change of grade is limited to 0.3% per 30 m length of the curve
C. According to I.C.A.O. the maximum longitudinal gradient along a runway is limited to 1.5%
D. All the above.

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