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
150 m
140 m
160 m
175 m
Correct Answer :
A. 150 m
Related Questions
Consider the following statements: Wind rose diagram is used for the purposes of
1. Runway orientation
2. Estimating the runway capacity
3. Geometric design of holding apron of these statements
1 and 2 are correct
2 and 3 are correct
1 and 3 are correct
1 alone is correct
Total correction for elevation, temperature and gradient for a runway should not be more than
15 %
20 %
25 %
35 %
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
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
From the end of an instrumental runway, the approach surface rises outwards
1 in 20
1 in 30
1 in 40
1 in 50
Pick up the incorrect statement from the following:
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
As per ICAO recommendation, the rate of change of longitudinal gradient per 30 m length of vertical curve for A and B type of airports is limited to a maximum of
0.1 %
0.2 %
0.3 %
0.4 %
The bearing of the runway at threshold is 290°, the runway number is
N 70° W
290°
29°
W 20° N
Conical surface of the approach area rises outwards
1 in 10
1 in 15
1 in 20
1 in 25
International Civil Aviation Organisation (I.C.A.O.) was set up at Montreal (Canada), in
1929
1939
1947
1950
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
The threshold markings are
4 m wide
1 m clear space between adjacent
Placed symmetrically on either side of the runway centre line
All the above
As per ICAO, the minimum basic runway length for A and E type of airport will be
1500 m and 600 m
2100 m and 750 m
1500 m and 750 m
2100 m and 600 m
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
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 component not applicable to aeroplanes
Wings
Engines
Air screw
None of these
The maximum length and pavement strength of the runway is that of
A 1
B 2
B 3
G 7
Assertion A : Airport capacity during IFR conditions is usually less than that during VFR conditions. Reason R: During clear weather condition (VFR), the aircrafts on final approach to runway can be spaced closer during poor visibility conditions. Select your answer based on the coding system given below:
Both A and R is true and R is the correct explanation of A
Both A and R is true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
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
For determining the basic runway length, the landing case requires that aircraft should come to a stop within p % of the landing distance. The value of p is
40 %
50 %
60 %
75 %
The strength of winds is measured with the help of
Beaufort scale
Wind indicator
Barometers
None of these
Two single runways may be arranged so as to have
L-shape
T-shape
X-shape
All the above
The minimum width of clearway is
50 m
100 m
150 m
250 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
For the proposed runway stated in if the aerodrome reference temperature is 17°.2, the net designed length of the runway is
2716 m
2816 m
2916 m
3016 m
The total length of a runway is 1000 m. The elevation at distance 0,200 m, 400 m, 600 m, 800 m and 1000 m are 100.0 m, 99.2 m, 101.0 m, 101.8 m, 101.4 m and 101.0 m respectively. The effective gradient of runway will be.
0.10 %
0.26 %
0.43 %
0.65 %
The size of landing area for multi engine helicopters operating under 1 FR conditions is
22.5 m × 22.5 m
30 m × 30 m
22.5 m × 30 m
60 m × 120 m
The bearing of the longest line of a wind rose is S 45° E, the bearing of the runway will be numbered
135°
31
13
Both (c) and (d)
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
The length of runway under standard conditions is 2000 m. The elevation of airport site is 300 m. Its reference temperature is 33.05°C. If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be
2500 m
2600 m
2700 m
2800 m