Infrastructure engineering

Which of the below does not affect the site-selection of an airport site?
1. Adequate access
1 2. Air traffic potential
3. Sufficient airspace
4. Number of ground staff
Which of the following is used for servicing and repairs of the aircraft?
1. Apron
2 2. Hanger
3. Terminal building
4. Holding apron
The FAA classification of the airport is based on:
1. Function
3 2. Geometric design
3. Airport approach speed
4. Length of Runway
The slope of the transitional surface for A, B and C type of runway shall be
1. 1 : 5
4 2. 1 : 7
3. 1 : 10
4. 1 : 12
Maximum gross takeoff weight of an aircraft is

5 1. Equal to the maximum structural landing weight

2. Less than the maximum structural landing weight
3. More than the maximum structural landing weight
4. Equal to the empty operating weight plus the payload
According to ICAO, all markings on the runways are
1. Yellow
6 2. White
3. Black
4. Red
The application of diagram is used to find the orientation of the runway to get the
desired wind coverage.
1. Wind Butterfly
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2. Wind Cycle
3. Wind Star
4. Wind Rose
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

8 1. 20 m
2. 30 m
3. 45 m
4. 51 m
Which one of the following lines is used for tying a ship with a dock?

1. Bow line
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2. Stern line
3. Spring line
4. All of these

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
10 airport reference temperature is
1. 32°C
2. 35.5°C
3. 48°C
4. 25°C
 In a wet dock system,

1. Minimum required depth of water for the vessels is maintained

11
2. Entrance locks are provided with massive gates
3. The cost of construction is quite heavy
4. All the above
According to I.C.A.O. the recommended length of air ports is decided on
1. Sea level elevation
12 2. Standard sea level temperature (15°C)
3. Effective gradient percentage
4. All the above
For supersonic transport aircraft, the minimum turning radius of taxiway is
1. 60 m
13 2. 120 m
3. 180 m
4. 240 m
Which of the following are repair docks?

1. Marine railways, dry docks, floating docks, wet docks

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2. Dry docks, wet docks, floating docks, lift docks
3. Wet docks, floating docks, lift docks, marine railways
4. Wet docks, lift docks, marine railways, dry docks
Due to the impact of water wave on a sea shore structure
1. Hydrostatic pressure coupled with a strong momentary impact is caused
15 2. Vibrations are subjected
3. Internal pressure is developed
4. All of the above
Pick up the correct statement from the following:

1. The maritime structures should be designed to withstand wave motion of air

16
2. The wind vortex results in conical depression in the air surface
3. A tube of air rotating at hundreds of kilometers per hour forms a tornado
4. All of the above
The minimum width of clearway is
1. 50 m
17 2. 100 m
3. 150 m
4. 250 m
Wing loading of an aircraft is

1. Load of the wings

18
2. Gross total weight of the aircraft/ load of the wings
3. Gross total weight of the aircraft/ wing area
4. Gross total weight of the aircraft/total available H.P of engines

Maximum gross takeoff weight of an aircraft is

19
1. Equal to the maximum structural landing weight
2. Less than the maximum structural landing weight
3. More than the maximum structural landing weight
4. Equal to the empty operating weight plus the payload

20 The depressions and undulations in the pavement, are caused due to

1. Improper compaction of sub-grade
2. Impact of heavy wheel loads
3. Punching effect
4. All the above
 For the proposed air port, the survey project provides

1. Master plan
21
2. Topographic plan
3. Grading plan
4. All the above
The centre to centre spacing of heliport lighting along the periphery of landing and takeoff area
should be

22 1. 2.5 m
2. 5.0 m
3. 7.5 m
4. 10.0 m
What is the Standard atmospheric temperature at mean sea-level?
1. 250C
23 2. 350C
3. 200C
4. 150C
As per ICAO recommendation, minimum width of safety area for instrumental runway should be

1. 78 m
24
2. 150 m
3. 300 m
4. 450 m
A ship is berthed in a chamber and lifted by principles of buoyancy, such a chamber is called.
1. Dry dock
25 2. Wet dock
3. Floating dock
4. Refuge dock
Which of the following conditions of loading imposes the greatest load on the foundation in case
of dry docks?
1. When the dock is empty
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2. When the dock is empty with the ship of maximum tonnage
3. When the dock is full of water
4. When the dock is dry and is under construction
As compared to wall type breakwater, mound type breakwater
1. Requires skilled labour
27 2. Requires low maintenance cost
3. Requires less material
4. Results in less damage due to gradual failure
Consider the following statements: Wind rose diagram is used for the purposes of
a) Runway orientation
b) Estimating the runway capacity
c) Geometric design of holding apron of these statements
28
1. 1 and 2 are correct
2. 2 and 3 are correct
3. 1 and 3 are correct
4. 1 alone is correct

The difference in height between highest high water and lowest low water is called
29 1. Mean range
2. Maximum range
3. Maximum rise
4. Mean rise
The fixed mooring does not require
1. Mooring post
30 2. Bollard
3. Anchors
4. Capstan
 Which one of the following lines is used for tying a ship with a dock?
1. Bow line
31 2. Stern line
3. Spring line
4. All of these
What are the Basic Runway correction?
1. Correction for elevation
32 2. Correction for gradient
3. Correction for temperature
4. All of the above
another advancing wave of similar amplitude merges and rises vertically in a wall of water. This
phenomenon is called
1. Surf
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2. Clapotis
3. Fetch
4. Swell
Pick up the correct statement from the following:
1. Minimum turning radius of aircrafts decides the size of the apron and the radius of the
curves at taxi-ends
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2. Take off and landing distances for an aircraft, determine the minimum runway length
3. The length of the normal haul of the air craft decides the frequency of operation
4. All the above
For night landing, the thresholds are lighted

1. Green
35
2. Red
3. White
4. Yellow
Which of the following is a fixed type mooring accessory?
1. Bollard
36 2. Buoys
3. Cables
4. Anchors
The significant wave height is defined is the average height of the
1. One-third highest waves
37 2. One-fourth highest waves
3. One-fifth highest waves
4. One-tenth highest waves
Which of the following factors are taken into account for estimating the runway length required
for aircraft landing?
a) Normal maximum temperature
b) Airport elevation
c) Maximum landing weight
38 d) Effective runway gradient
Select the correct answer using the codes given below Codes:
1. 1, 2, 3 and 4
2. 1, 3 and 4
3. 2 and 3
4. 1, 2 and 4

The threshold markings are

39 1. 4 m wide
2. 1 m clear space between adjacent
3. Placed symmetrically on either side of the runway centre line
4. All the above
The height of the pilot's eye above the runway surface is assumed
1. 1 m
40 2. 3 m
3. 4 m
4. 5 m
 A roadstead:
1. Is a protected area of water where boats can move safely
41 2. Is the end of the road at the harbour
3. May be protected by break water walls
4. None of these
The difference in height between highest high water and lowest low water is called
1. Mean range
42 2. Maximum range
3. Maximum rise
4. Mean rise
Which of the following structures protects the shore by trapping of littoral drift?

1. Groynes
43
2. Sea walls
3. Revetments
4. Moles
According to ICAO what is the maximum percentage increase in Runway length
1. 45%
44 2. 35%
3. 50%
4. 15%
The width of the entrances of the harbours is restricted to
1. 100 m
45 2. 125 m
3. 150 m
4. 180 m
A dock
1. Is a marine structure for berthing of vessels for loading and unloading cargo and
passengers?
46
2. Is provided with a dock gate
3. Is provided with an arrangement to pump out water when required
4. All the above
The beach is built:
1. With largest material locally available to the waves
47 2. With large material locally available to the waves
3. With fine material locally available to the waves
4. With finest material locally available to the waves
Depth of borings for soil investigation, is generally kept below low water level
1. 30 m
48 2. 35 m
3. 45 m
4. 40 m
ICAO (International Civil Aviation Organization) recommends that the basic runway length
should be increased at the rate of
1. 7% per 600 m
49
2. 7% per 300 m
3. 14% per 300 m
4. 14% per 600 m
The low water datum for a lake is defined as the surface of the lake when it is at elevation
1. 180.5 m above M.S.L.
50 2. 190.5 m above M.S.L.
3. 170.5 m above M.S.L.
4. 200.0 m above M.S.L.