Assertion A : Basin walls have to be of much grater height than dock walls.Reason R : Tidal basins are subject to fluctuations of levels due to tidal variations.Select your answer based on the coding system given below: Both A and R are true but R is not correct explanation of A. A is false but R is true. Both A and R are true and R is the correct explanation of A. A is true but R is false. TRUE ANSWER : ? YOUR ANSWER : ?
As per Stevenson’s empirical formula, the approximate value of the height of the wave in metres is given by (where F is the fetch in km.) 0.34 VF 1.5 VF 0.5 VF 3.4 VF TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area? Sea walls, bulk heads and revetments Sea walls, revetments and groynes Sea walls, bulk heads and groynes Bulk heads, revetments and groynes TRUE ANSWER : ? YOUR ANSWER : ?
Dead weight tonnage of a ship<br/>(i) varies with latitude and season<br/>(ii) is more than displacement tonnage<br/>(iii) is the difference between displacement load and displacement light of these statements Only (iii) is correct (i) and (iii) are correct (i) and (ii) are correct (ii) and (iii) are correct TRUE ANSWER : ? YOUR ANSWER : ?
Consider the following statements in regard to Beaufort scale for wind speeds,<br/>(i) The Beaufort number ranges from 1 to 12.<br/>(ii) Higher Beaufort number indicates higher speed of wind,<br/>(iii) Beaufort number for calm is smallest and for hurricane is highest of these statements (i) and (ii) are correct (ii) and (iii) are correct (i) and (iii) are correct (i), (ii) and (iii) are correct TRUE ANSWER : ? YOUR ANSWER : ?
By increasing the rise of lock-gates,<br/>(i) The length of the lock gate will increase<br/>(ii) Transverse stress due to water pressure on the gate will increase<br/>(iii) Compressive force on the gate will increase Only (iii) is correct Only (ii) is correct (i) and (iii) are correct (i) and (ii) are correct TRUE ANSWER : ? YOUR ANSWER : ?
When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called Fetch Swell Clapotis Surf TRUE ANSWER : ? YOUR ANSWER : ?
The most popular method of construction of wall breakwaters is Staging method None of these Barge method Low level method TRUE ANSWER : ? YOUR ANSWER : ?
When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as Draft Depth Beam Free-board TRUE ANSWER : ? YOUR ANSWER : ?
As per Berlin's formula, the length of wave in meters is given by(Where ’t’ is the period in seconds for two successive waves to pass the same section.) 1.9412 1.3412 1.7412 1.5612 TRUE ANSWER : ? YOUR ANSWER : ?