Tricky Airport Engineering Objective typeQuestions and Answers

41. 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
a) 1 and 2 are correct
b) 2 and 3 are correct
c) 1 and 3 are correct
d) 1 alone is correct
Ans: d

42. 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:
a) 1,2,3 and 4
b) 1,3, and 4
c) 2 and 3
d) 1,2 and 4
Ans: d

43. 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
a) 32
b) 36
c) 44
d) 68
Ans: b

44. Castor angle is defined as the angle
a) formed by the longitudinal axis of the aircraft and the direction of movement of the nose gear
b) between the direction of wind and the longitudinal axis of the runway
c) between the true speed of the aircraft and the crosswind component
d) between the horizontal and the fuselage axis
Ans: a

45. The runway length after correcting for elevation and temperature is 2845 m. If the effective gradient on runway is 0.5 percent then the revised runway length will be
a) 2845 m
b) 2910 m
c) 3030 m
d) 3130m
Ans: c

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Selected Airport Engineering Objective typeQuestions and Answers

11. Consider the following statements regarding iCAO recommendation for correction to basic runway length
1. The basic runway length should be increased at the rate of 7 percent per 300 m rise in elevation above the mean sea level.
2. The basic runway length after having been corrected for elevation should be further increased at the rate of 1 percent for every 1°C rise in airport reference temperature above the standard atmospheric temperature at that elevation.
3. The runway length after having been corrected for elevation and temperature should be further increased at the rate of 20% for every 1 percent of effective gradient.
Of these statements
a) 1 and 2 are correct
b) 2 and 3 are correct
c) 1 and 3 are correct
d) 1,2 and 3 are correct
Ans: a

12. 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.
a) 0.10%
b) 0.26%
c) 0.43 %
d) 0.65%
Ans: b

13. 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
a) 2500 m
b) 2600 m
c) 2700 m
d) 2800 m
Ans: c

14. As per ICAO, the minimum basic runway length for A and E type of airport will be
a) 1500 m and 600 m
b) 2100 m and 750 m
c) 1500 m and 750 m
d) 2100 m and 600 m
Ans: d

15. Zero fuel weight of an aircraft is:
a) equal to empty operating weight
b) equal to maximum landing weight
c) less than empty operating weight
d) equal to sum of empty operating weight and the maximum pay load.
Ans: d

17. 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
a) 450 kmph and 500 kmph
b) 500 kmph and 450 kmph
c) 450 kmph and 450 kmph
d) 500 kmph and 500 kmph
Ans: a

19. As per ICAO, for airports serving big aircrafts, the crosswind component should not exceed
a) 15 kmph
b) 25 kmph
c) 35 kmph
d) 45 kmph
Ans: c

20. Calm period is the percentage of time during which wind intensity is less than
a) 4.8 kmph
b) 6.4 kmph
c) 8.0 kmph
d) 9.6 kmph
Ans: b

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