CURRENT AFFAIRS

Detailed explanation-1: -China’s first 25, 000-ton-class floating dock Huangshan was completed in 1974, and the 300, 000-ton-class Dalian and 200, 000-ton-class Zhonghai Mount Jiuhua and Zhonghai Mount E’mei followed.

Detailed explanation-2: -In 1775 Hull’s Old Dock was opened. This was the first commercial floating dock, isolated by a lock rather than a single lock gate. This allowed the dock’s water level to be maintained and, more importantly, it increased the time for which tidal access was possible.

Detailed explanation-3: -The No. 5 Royal Dock is a floating dry dock being built by Daewoo Shipbuilding & Marine Engineering (DSME); when complete, it will be the largest floating drydock in the world.

Detailed explanation-4: -Floating Dry Dock-a structure with sealed wing walls between which the ship is positioned. Water is pumped out of the wing walls to raise the ship clear of the water line. Water is pumped back into the wing walls to lower the ship back into the water.

Detailed explanation-5: -A wet dock or impounded dock is a variant in which the water is impounded either by dock gates or by a lock, thus allowing ships to remain afloat at low tide in places with high tidal ranges. The level of water in the dock is maintained despite the rising and falling of the tide. This makes transfer of cargo easier.