Airport Engineering Objective Type Questions and Answers

(21) 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: 3030 m

(22) 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

Answer: formed by the longitudinal axis of the aircraft and the direction of movement of the nose gear

(23) 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

Answer: 36

(24) 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

Answer: 1,2 and 4

(25) 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

Answer: 1 alone is correct

(26) Maximum gross take-off 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: more than the maximum structural landing weight

(27) 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: 30 m

(28) 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: 300 m

(29) The slope of the transitional surface for A, B and C type of runway shall be

[A] 1:5

[B] 1:7

[C] 1:10

[D] 1:12

Answer: 1:7

(30) Which of the following is used for servicing and repairs of the aircraft ?

[A] Apron

[B] Hanger

[C] Terminal building

[D] holding apron

Answer: Hanger

31 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: hot blast is directed towards the terminal building

32 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: Alligator cracking

33 As per UK design criteria, if LCN of aircraft is between 1.25 to 1.5 times the LCN of pavement, then the number of movements allowed are

[A] Zero

[B] 300

[C] 3000

[D] Unrestricted

Answer: 300

34 For supersonic transport aircraft, the minimum turning radius of taxiway is

[A] 60 m

[B] 120 m

[C] 180 m

[D] 240 m

Answer: 180 m

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 are true and R is the correct explanation of A

[B] Both A and R are 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: A is true but R is false

36

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:

[A] Both A and R are true and R is the correct explanation of A

[B] Both A and R are 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: Both A and R are true and R is the correct explanation of A

37 The slope of the obstruction clearance line from the boundary of the heliport should be

[A] 1:2

[B] 1:5

[C] 1:8

[D] 1:40

Answer: 1:8

38 The centre to centre spacing of heliport lighting along the periphery of landing and take off area should be

[A] 2.5 m

[B] 5.0 m

[C] 7.5 m

[D] 10.0 m

Answer: 7.5 m

39 The size of landing area for multiengined helicopters operating under 1FR conditions is

[A] 22.5 m x 22.5 m

[B] 30 m x 30 m

[C] 22.5 m x 30 m

[D] 60 mx 120 m

Answer: 60 mx 120 m

40 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: about 1 km. ahead of the runway threshold

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