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
Correct Answer :
D. 675 knots
Related Questions
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
Total correction for elevation, temperature and gradient for a runway should not be more than
15 %
20 %
25 %
35 %
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
Airport elevation is the reduced level above M.S.L. of
Control tower
Highest point of the landing area
Lowest point of the landing area
None of these
Pick up the correct statement from the following:
Runway edge from the landing side, is called threshold
Localizer indicates to the pilot his position with respect to the proposed alignment
The glide slope indicates the correct angle of descent
All the above
Which of the following factors are taken into account for estimating the runway length required for aircraft landing?
1. Normal maximum temperature
2. Airport elevation
3. Maximum landing weight
4. Effective runway gradient Select the correct answer using the codes given below Codes:
1, 2, 3 and 4
1, 3 and 4
2 and 3
1, 2 and 4
Beaufort scale is used to determine
Strength of winds
Direction of winds
Height of air-crafts
None of these
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
An airport has 4 gates. If the weighted average gate occupancy time is 30 minutes and gate utilisation factor is 0.5, then the capacity of the gate will be
1 aircraft per hour
2 aircrafts per hour
4 aircrafts per hour
16 aircrafts per hour
The length of clear zone for none instrument runway of a small aircraft is
150 m
300 m
600 m
750 m
The lift off distance is the distance along the centre of the runway between the starting point and
End of the runway
End of stop-way
Point where air craft becomes air borne
Point where air craft attains a height of 10.7 m
The thickness design of the pavement, is decided on the load carried by
Main gears
Nose wheel
Tail wheel
All the above
The landing and takeoff of the air craft is made against the direction of wind. In no case the centre line of the runway should make an angle with the wind direction exceeding
10°
20°
30°
40°
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
If lift off distance of an craft is 2000 m, the clear way at the end of the runway should not be less than
145 m
152.5 m
162.5 m
172.5 m
The main disadvantage of angle nose out parking configuration of aircraft is that the
Aircraft rear loading door is far away from terminal building.
Hot blast is directed towards the terminal building
Overall apron area required is more
All the above
The cruising speed of the aircraft is 500 kmph. If there is a head wind of 50 kmph, then the air speed and ground speed of the aircraft respectively will be
450 kmph and 500 kmph
500 kmph and 450 kmph
450 kmph and 450 kmph
500 kmph and 500 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
The slope of the transitional surface for A, B and C type of runway shall be
1 : 5
1 : 7
1 : 10
1 : 12
The length of runway is increased per 300 m rise above M.S.L.
3 %
4 %
5 %
7 %
If the width of the approach area near the runway end is 150 m, the width of the approach area at a distance of 3 kilometres from runway end will be
1500 m
1200 m
1000 m
800 m
The maximum value of the angle of turning of the nose gear large jet aircrafts, is limited to
20°
30°
45°
60°
Pick up the correct statement from the following:
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
Pick up the correct statement from the following:
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
If the monthly mean of average daily temperature for the hottest month of the year is 25°C and the monthly mean of the maximum daily temperature of the same month of the year is 46°C, the airport reference temperature is
32°C
35.5°C
48°C
25°C
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 engine failure case for determining the basic runway length may require
Only clearway
Only stop way
Either a clearway or a stop-way
Either a clearway or a stop-way or both
Pick up the correct statement from the following:
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)
The distance between main gears is 10 m, and the distance of nose gear from centre of main gears is 30 m. If the angle of turning is 60°, the distance of centre of rotation from the nearer main gear, is
12.30 m
11.30 m
10.30 m
9.30 m