Freshers India

Assertion A : Marine structures are made specially bulky and strong.
Reason R : Sea insects result in undermining of the hardest and the soundest building material.
Select your answer based on the coding system given below:                        

By increasing the rise of lock gates,
(i)the length of the lock gate will increase
(ii)transverse stress due to water pressure on the gate will increase
(iii)compressive force on the gate will increase Of these statements                        

Consider the following statements in regard to Beaufort scale for wind speeds,
(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 Of these statements                        

Consider the following statements.
(i)Fender is the cushion provided on the face of the jetty for ships to come in contact,
(ii)Slip is the space of water area between two adjacent piers where ships are berthed,
(iii)Pier head is a structure constructed near the tip of a break water near the harbor entrance. Of the statements                        

Dead weight tonnage of a ship
i)varies with latitude and season
ii)is more than displacement tonnage
iii)is the difference between displacement load and displacement light Of these statements                        

For designing the dock, the proportion of ship load assumed to be borne by keel blocks is