Which of the following structures protects the shore by trapping of littoral drift?

(i) The Beaufort number ranges from 1 to 12.
(ii) Higher Beaufort number indicates higher speed of wind,
(iii) Beaufort number for calm is smallest and for hurricane is highest
select the correct statments.
A. (i) and (ii) are correct
B. (ii) and (iii) are correct
C. (i) and (iii) are correct
D. (i), (ii) and (iii) are correct

(i) loaded draft + 1.2 m when bottom is rock
(ii) loaded draft + 1.8 m when bottom is soft
(iii) loaded draft + 1.2 m when bottom is soft
(iv) loaded draft + 1.8 m when bottom is rock
select the correct the correct statements.
A. (i) and (ii) are correct
B. (i) and (iii) are correct
C. (ii) and (iv) are correct
D. (iii) and (iv) are correct

A. 1.3412
B. 1.5612
C. 1.7412
D. 1.9412
where ‘t’ is the period in seconds for two successive waves to pass the same section

A. 90° with the face of the dock
B. 45° with the face of the dock
C. 30° with the face of the dock
D. 10° with the face of the dock

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 a correct explanation of A
C. A is true but R is false
D. A is false but R is true

A. bollard
B. buoys
C. cables
D. anchors