If ‘Hs’ is the significant wave height, then the average wave height and highest wave height respectively are given by 1.27 Hs and 1.67 Hs 1.27 Hs and 1.87 Hs 0.6 Hs and 1.87 Hs 0.6 Hs and 1.67 Hs TRUE ANSWER : ? YOUR ANSWER : ?
The maximum harbour depth below lowest low water is generally equal to(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 (ii) and (iv) are correct (iii) and (iv) are correct (i) and (iii) are correct (i) and (ii) are correct TRUE ANSWER : ? YOUR ANSWER : ?
A ship strikes the berth generally at an angle 45° with the face of the dock 30° with the face of the dock 10° with the face of the dock 90° with the face of the dock TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following type of sea walls results in greatest protection of shore structures? stepped sea wall sea wall with batter sea wall with concave face vertical sea wall 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 (ii) and (iii) are correct (i) and (ii) are correct (i) and (iii) are correct (i), (ii) and (iii) are correct TRUE ANSWER : ? YOUR ANSWER : ?
The significant wave height is defined is the average height of the one – fourth highest waves one – tenth highest waves one – third highest waves one – fifth highest waves 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 (i) and (iii) are correct (i) and (ii) are correct Only (iii) is correct Only (ii) is correct TRUE ANSWER : ? YOUR ANSWER : ?
If the maximum spring rise is 2 m and height of the waves expected is 4 m , then the breakwater height above the datum will be 4 m 2.5 m 7 m 5 m TRUE ANSWER : ? YOUR ANSWER : ?
Minimum width of ship clearance shall be (where “B” is beam of the design vessel) 1.5 B or 50 m B or 30 m 1.5 B 50 m TRUE ANSWER : ? YOUR ANSWER : ?
In multiple point mooring system, vessel is secured to minimum of Four points Eight points Two points Six points TRUE ANSWER : ? YOUR ANSWER : ?