Docks and Harbor Engineering
By increasing the rise of lock-gates,
(i) The length of the lock gate will increase
(ii) Transverse stress due to water pressure on the gate will increase
(iii) Compressive force on the gate will increase

Only (ii) is correct
Only (iii) is correct
(i) and (iii) are correct
(i) and (ii) are correct

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Docks and Harbor Engineering
In a two lane channel, bottom width of channel is given by

Manoeuvring lane + (2 × Bank clearance lane) + ship clearance lane
(2 × Manoeuvring lane) + (2 × Bank clearance lane)
(2 × Manoeuvring lane) + (2 × Bank clearance lane + ship clearance lane)
Manoeuvring lane + (2 × Bank clearance lane)

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

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

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