Pick up the incorrect statement from the following:
Channelization of pavement is caused by constant use of tri-cycle gears of aircraft
Blast pads are used over cohesionless 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
Correct Answer :
D. None of these
Related Questions
Pick up the correct statement from the following:
The speed of the aircraft relative to the ground, is called cruising speed
The speed of the aircraft relative to wind, is called air speed
When wind is blowing the direction of the flight, air speed is less than cruising speed
All the above
The runway orientation is made so that landing and takeoff are
Against the wind direction
Along the wind direction
Perpendicular to wind direction
None of these
In Intrumental landing system, the middle markers are located
Along the extended centre line of runway end
About 1 km. ahead of the runway threshold
At the runway threshold
About 7 km. ahead of the runway threshold
Which of the following is used for servicing and repairs of the aircraft?
Apron
Hanger
Terminal building
Holding apron
According to I.C.A.O. all markings on the runways are painted white and on taxiways
Black
Red
Yellow
Green
The best direction of a runway is along the direction of
Longest line on wind rose diagram
Shortest line on the wind rose diagram
Line clear of wind rose diagram
None of these
According to ICAO, all markings on the runways are
Yellow
White
Black
Red
Total correction for elevation, temperature and gradient for a runway should not be more than
15 %
20 %
25 %
35 %
The slope of the transitional surface for A, B and C type of runway shall be
1 : 5
1 : 7
1 : 10
1 : 12
In approach areas of runways equipped with instrumental landing facilities any object within 4.5 km distance from runway end shall be considered as an obstruction if its height is more than
20 m
30 m
45 m
51 m
The maximum value of the angle of turning of the nose gear large jet aircrafts, is limited to
20°
30°
45°
60°
Calm period is the percentage of time during which wind intensity is less than
4.8 kmph
6.4 kmph
8.0 kmph
9.6 kmph
Speed of
Sound at 0°C is 1190 kmph
Sound varies 2.4 kmph per degree centigrade rise in temperature
Sound at 0°C is called one Mach
All the above
Pick up the correct statement from the following:
The distance between the points of intersection of the extreme tangents to the transition curve is kept greater than 7500 m × sum of grade changes at the point of intersection
The rate of change of grade is limited to 0.3% per 30 m length of the curve
According to I.C.A.O. the maximum longitudinal gradient along a runway is limited to 1.5%
All the above
According to I.C.A.O. the recommended length of air ports is decided on
Sea level elevation
Standard sea level temperature (15°C)
Effective gradient percentage
All the above
Pick up the correct abbreviation from the following:
L.M.M. (low powered middle marker)
V.H.F, (very high frequency)
L.O.M. (low powered outer marker)
All the above
In an airport, if 4 groups of 5 gates each located well separated are considered for traffic and the future to present traffic ratio is 3, then the total requirement of future gates will be
32
36
44
68
Pick up the correct statement from the following:
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
To cope up high temperature of 196°C, the taxi ways and aprons are constructed with
Asphaltic concrete
Rubberised tar concrete
Plain concrete
All the above
International Civil Aviation Organisation (I.C.A.O.) was set up at Montreal (Canada), in
1929
1939
1947
1950
For the taxiways, the following statement is true
The maximum longitudinal grade is 3%
The permissible rate of change of grade is 1%
The permissible transverse grade is 1.5%
All the above
The length of a runway under standard atmospheric conditions is 1800 m. If the actual reduced level of the site is 1200 m, the design length of the runway is
2360 m
2460 m
2560 m
2660 m
Castor angle is defined as the angle
Formed by the longitudinal axis of the aircraft and the direction of movement of the nose gear
Between the direction of wind and the longitudinal axis of the runway
Between the true speed of the aircraft and the crosswind component
Between the horizontal and the fuselage axis
Which of the following is an example of failure in flexible pavements?
Alligator cracking
Mud pumping
Warping cracks
Shrinkage cracks
The air is blowing at a speed of 75 knots in the direction of the aircraft flying at a ground speed of 775 knots. The air speed of the aircraft, is
775 knots
75 knots
850 knots
675 knots
According to the International Civil Aviation Organisation (I.C.A.O.), the runway lengths of aerodromes, have been coded by
Seven English alphabets
Last Seven English alphabets
First Seven English alphabets
First seven natural numbers
For night landing, the thresholds are lighted
Green
Red
White
Yellow
The length of clear zone for none instrument runway of a small aircraft is
150 m
300 m
600 m
750 m
The height of the pilot's eye above the runway surface is assumed
1 m
3 m
4 m
5 m
Pick up the correct statement from the following:
The centre line of the approach area coincides with that of the runway
Approach areas are measured in horizontal surfaces
Obstruction clearance surface and approach surface are same
All the above