Civil Engineering MCQs

Page No. 107

The difference in height between highest high water and lowest low water is called_______________?


a mean range

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bmaximum range

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cmaximum rise

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dmean rise

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View Answer maximum range

If H is the height of the wave expected, then the height of the breakwater is generally taken as______________________?


a1.2 H to 1.25 H above the datum

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b1.2 H to 1.25 H above the low water level

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c1.2 H to 1.25 H above the high water level

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d1.2 H to 1.25 H above the mean sea level

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By increasing the rise of lockgates_______________?


athe length of the lock gate will increase

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b transverse stress due to water pressure on the gate will increase

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ccompressive force on the gate will increa

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d (A) and (B) are correct

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


aone – third highest waves

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b one – fourth highest waves

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c one – fifth highest waves

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done – tenth highest waves

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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_________________?


aSurf

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bClapotis

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cFetch

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dSwell

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View Answer Clapotis

Which of the following type of sea walls results in greatest protection of shore structures?


avertical sea wall

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b sea wall with batter

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cstepped sea wall

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dsea wall with concave face

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Which of the following are repair docks ?


a marine railways, dry docks, floating docks, wet docks

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bdry docks, wet docks, floating docks, lift docks

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cwet docks, floating docks, lift docks, marine railways

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dwet docks, lift docks, marine railways, dry docks

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Which of the following conditions of loading imposes the greatest load on the foundation in case of dry docks?


awhen the dock is empty

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bwhen the dock is empty with the ship of maximum tonnage

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c when the dock is full of water

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dwhen the dock is dry and is under construction

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A ship strikes the berth generally at an angle_________________?


a90° with the face of the dock

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b45° with the face of the dock

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c 30° with the face of the dock

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d10° with the face of the dock

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A ship is berthed in a chamber and lifted by principles of buoyancy Such a chamber is called_________________?


a Dry dock

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bWet dock

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c Floating dock

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dRefuge dock

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View Answer Floating dock

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