SSC CGL - Airport Engineering 1000+ MCQ [Solved] PDF Download

1. Assertion A : The ratio of arriving and departing aircrafts influences the airport Capacity: Reason R : Landing operation is generally given priority over the taking off operation. Select your answer based on the coding system given below:
A. Both A and R is true and R is the correct explanation of A
B. Both A and R is true and R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer : A

2. The thickness design of the pavement, is decided on the load carried by
A. Main gears
B. Nose wheel
C. Tail wheel
D. All the above
Answer : A

3. For supersonic transport aircraft, the minimum turning radius of taxiway is
A. 60 m
B. 120 m
C. 180 m
D. 240 m
Answer : C

4. The height of the pilot's eye above the runway surface is assumed
A. 1 m
B. 3 m
C. 4 m
D. 5 m
Answer : B

5. 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. 3130 m
Answer : C

6. Pick up the incorrect statement from the following:
A. In single engine aeroplanes, the engine is provided in the nose of the aircraft
B. In double engine aeroplanes, one engine on either wing is placed symmetrically
C. In three engine aeroplanes, two engines are placed on both wings and one engine is placed in the tail
D. None of these
Answer : C

7. 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
A. 2360 m
B. 2460 m
C. 2560 m
D. 2660 m
Answer : C

8. In Intrumental landing system, the middle markers are located
A. Along the extended centre line of runway end
B. About 1 km. ahead of the runway threshold
C. At the runway threshold
D. About 7 km. ahead of the runway threshold
Answer : B

9. 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
Answer : C

10. For the proposed runway stated in if the aerodrome reference temperature is 17°.2, the net designed length of the runway is
A. 2716 m
B. 2816 m
C. 2916 m
D. 3016 m
Answer : B

11. Effective length of a runway is the distance between
A. Ends of the runway
B. Point of intersection of the obstruction clearance line and the extended plane of the runway surface, and the other end of the runway
C. Point of intersection of the glide path and the extended plane of the runway surface and the other end of the runway
D. Ends of the clear way on either side
Answer : B

12. 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
A. 1 aircraft per hour
B. 2 aircrafts per hour
C. 4 aircrafts per hour
D. 16 aircrafts per hour
Answer : C

13. The bearing of the longest line of a wind rose is S 45° E, the bearing of the runway will be numbered
A. 135°
B. 31
C. 13
D. Both (c) and (d)
Answer : D

14. Pick up the incorrect statement from the following:
A. L.O.M. is installed at 7.2 km from the threshold
B. L.M.M. is installed at 1.0 km from the threshold
C. Localizer antenna is installed at 300 m from the other end of the runway
D. Glide slope antenna is installed at the centre of the runway about 150 m on one side
Answer : D

15. 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
A. 150 m
B. 140 m
C. 160 m
D. 175 m
Answer : A

16. Pick up the incorrect statement from the following:
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
Answer : D

17. 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
Answer : D

18. The reduced levels of the ends A and B of a runway are 3025 m and 3035 m and that of its mid-point is 3015 m. The reduced level of the horizontal surface, is
A. 3070 m
B. 3060 m
C. 3075 m
D. 3015 m
Answer : C

19. If lift off distance of an craft is 2000 m, the clear way at the end of the runway should not be less than
A. 145 m
B. 152.5 m
C. 162.5 m
D. 172.5 m
Answer : D

20. Wing loading of an aircraft is
A. Load of the wings
B. Gross total weight of the aircraft/ load of the wings
C. Gross total weight of the aircraft/ wing area
D. Gross total weight of the aircraft/total available H.P of engines
Answer : C

21. Pick up the correct statement from the following:
A. Landing speed is directly proportional to the wing loading
B. Wing loading remaining constant, the take off distance is directly proportional to the powder loading
C. Neither (a) nor (b)
D. Both (a) and (b)
Answer : D

22. Pick up the correct statement from the following:
A. F.I.R. stands for flight information regions
B. Radius of control area is 160 km
C. Radius of control zone is 40 km
D. All the above
Answer : D

23. According to I.C.A.O. all markings on the runways are painted white and on taxiways
A. Black
B. Red
C. Yellow
D. Green
Answer : C

24. Speed of
A. Sound at 0°C is 1190 kmph
B. Sound varies 2.4 kmph per degree centigrade rise in temperature
C. Sound at 0°C is called one Mach
D. All the above
Answer : D

25. The length of runway is increased per 300 m rise above M.S.L.
A. 3 %
B. 4 %
C. 5 %
D. 7 %
Answer : D

26. As per ICAO, for A, B, and C type of airports, maximum effective, transverse and longitudinal grades in percentage respectively are
A. 1.0, 1.5 and 1.5
B. 1.0, 1.5 and 2.0
C. 1.5, 1.5 and 2.0
D. 2.0, 2.0 and 2.0
Answer : A

27. The best direction of a runway is along the direction of
A. Longest line on wind rose diagram
B. Shortest line on the wind rose diagram
C. Line clear of wind rose diagram
D. None of these
Answer : A

28. Pick up the correct statement from the following:
A. Minimum turning radius of aircrafts decides the size of the apron and the radius of the curves at taxi-ends
B. Take off and landing distances for an aircraft, determine the minimum runway length
C. The length of the normal haul of the air craft decides the frequency of operation
D. All the above
Answer : D

29. 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
A. 32°C
B. 35.5°C
C. 48°C
D. 25°C
Answer : C

30. For the proposed air port, the survey project provides
A. Master plan
B. Topographic plan
C. Grading plan
D. All the above
Answer : D

31. The depressions and undulations in the pavement, are caused due to
A. Improper compaction of sub-grade
B. Impact of heavy wheel loads
C. Punching effect
D. All the above
Answer : D

32. 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
A. 1500 m
B. 1200 m
C. 1000 m
D. 800 m
Answer : B

33. The lift off distance is the distance along the centre of the runway between the starting point and
A. End of the runway
B. End of stop-way
C. Point where air craft becomes air borne
D. Point where air craft attains a height of 10.7 m
Answer : A

34. In instrument landing system
A. L.O.M. and L.M.M. are installed on one side and Localizer antenna on the other side
B. L.O.M. and Localizer are installed on one side and L.M.M. on the other side
C. Localizer and L.M.M. are installed on one side and L.O.M. on the other side
D. None of these
Answer : A

35. Assertion A: The width of a taxiway is smaller than the runway width. Reason R: The speed of the aircraft on a taxiway is greater than that on runway. Select your answer based on coding system given below
A. Both A and R is true and R is the correct explanation of A
B. Both A and R is true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer : C

36. Beaufort scale is used to determine
A. Strength of winds
B. Direction of winds
C. Height of air-crafts
D. None of these
Answer : A

37. The strength of winds is measured with the help of
A. Beaufort scale
B. Wind indicator
C. Barometers
D. None of these
Answer : A

38. The minimum width of clearway is
A. 50 m
B. 100 m
C. 150 m
D. 250 m
Answer : C

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

40. For night landing, the thresholds are lighted
A. Green
B. Red
C. White
D. Yellow
Answer : A

41. Maximum gross takeoff weight of an aircraft is
A. Equal to the maximum structural landing weight
B. Less than the maximum structural landing weight
C. More than the maximum structural landing weight
D. Equal to the empty operating weight plus the payload
Answer : C

42. The main disadvantage of angle nose out parking configuration of aircraft is that the
A. Aircraft rear loading door is far away from terminal building.
B. Hot blast is directed towards the terminal building
C. Overall apron area required is more
D. All the above
Answer : B

43. The reduced level of the proposed site of an air port is 2500 m above M.S.L. If the recommended length by I.C.A.O. for the runway at sea level is 2500 m, the required length of the runway is
A. 2500 m
B. 3725 m
C. 3000 m
D. 3250 m
Answer : B

44. The length of clear zone for none instrument runway of a small aircraft is
A. 150 m
B. 300 m
C. 600 m
D. 750 m
Answer : B

45. According to the International Civil Aviation Organisation (I.C.A.O.) the strength of runway pavements, have been coded by
A. Seven English alphabets
B. Last Seven English alphabets
C. First Seven English alphabets
D. First seven numbers
Answer : D

46. Pick up the correct statement from the following:
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. All the above
Answer : D

47. Pick up the correct statement from the following:
A. 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
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
Answer : D

48. As per ICAO recommendation, minimum width of safety area for instrumental runway should be
A. 78 m
B. 150 m
C. 300 m
D. 450 m
Answer : C

49. Which of the following is an example of failure in flexible pavements?
A. Alligator cracking
B. Mud pumping
C. Warping cracks
D. Shrinkage cracks
Answer : A

50. 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
A. 20 m
B. 30 m
C. 45 m
D. 51 m
Answer : B