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
For supersonic transport aircraft, the minimum turning radius of taxiway is________________?
(A) 60 m
(B) 120 m
(C) 180 m
(D) 240 m
Which of the following is an example of failure in flexible pavements ?
(A) Alligator cracking
(B) Mud pumping
(C) Warping cracks
(D) Shrinkage cracks
As compared to wall type breakwater, mound type breakwater_________________?
(A) requires skilled labour
(B) requires low maintenance cost
(C) requires less material
(D) results in less damage due to gradual failure
Minimum width of ship clearance shall be__________________?
(A) B or 30 m
(B) 1.5 B or 50 m
(C) 1.5 B
(D) 50 m
At a given port, the fetch is 400 nautical miles, the maximum height of storm wave will be_______________?
(A) 2.073 m
(B) 8.169 m
(C) 9.144 m
(D) 6.8 m
As per Stevenson’s empirical formula, the approximate value of the height of the wave in metres is given by__________________?
(A) 0.34 VF
(B) 0.5 VF
(C) 1.5 VF
(D) 3.4 VF where F is the fetch in km
The minimum diameter of turning besin, where ships turn by going ahead and without tug assistance should be___________________?
(A) L
(B) 1.5 L
(C) 2.0 L
(D) 4.0 L
When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as________________?
(A) beam
(B) depth
(C) freeboard
(D) draft
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