Docks and Harbor Engineering
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:

A is true but R is false.
A is false but R is true.
Both A and R are true but R is not the correct explanation of A.
Both A and R are true and R is the correct explanation of A.

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Docks and Harbor Engineering
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:

Both A and R are true and R is the correct explanation of
A is true but R is false.
Both A and R are true but R is not the correct explanation of
A is false but R is true.

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Docks and Harbor Engineering
Which of the following are repair docks ?

wet docks, lift docks, marine railways, dry docks
dry docks, wet docks, floating docks, lift docks
marine railways, dry docks, floating docks, wet docks
wet docks, floating docks, lift docks, marine railways

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