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DOCKS AND HARBOR ENGINEERING QUIZ

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.)

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Assertion A : Large size stones are required in stone revetment in shore protection.Reason R : Resistance of stone to wave force is proportional to its volume and wave force is proportional to the exposed area of the stone.Select your answer based on the coding system given below.

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The significant wave height is defined is the average height of the

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

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In multiple point mooring system, vessel is secured to minimum of

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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

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Minimum width of ship clearance shall be (where “B” is beam of the design vessel)

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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

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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.)

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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

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