When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.

相似题目

• The master got permission to pump out 500 tons of clean sea water for （）.

  A . the purpose of trimming B . the approval for ballast C . the purpose of voyage D . the approval for operatio

  查看最佳答案

• When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and （） the sea water passing through the tubes.

  A . dispose B . dissolve C . heat D . dissipate

  查看最佳答案

• （）is used to prevent the entry of sea water to the machinery space.

  A . A special sealing gland B . Propeller C . Tailshaft D . Sterntube bearing

  查看最佳答案

• Some sea water came into the wheel house during the voyage due to（）the window thereof.

  A . not close B . not closing C . we didn't close D . not to be closed

  查看最佳答案

• Distilled water from an evaporator may be discharged into a potable water tank （）.

  A . through a detachable hose connection B . after passing through an activated charcoal filter C . after chemical analysis shows it is fit for consumption D . through a solenoid operated three-way valve

  查看最佳答案

• （）is not a process of weathering of the oil spilled in the sea water.

  A . Biodegradation B . Dissolution C . Cleaning up by crew with skimmers D . Oxidation including photooxidatio

  查看最佳答案

• Diesel engine jacket water is used in the distillation process as the （）.

  A . coolant for the distillate B . coolant for the brine cooler C . means of heating the feedwater D . primary means of producing a vacuum within the distiller

  查看最佳答案

• A large, low-speed, main propulsion diesel engine uses sea water to directly cool the （）.

  A . cylinder heads B . exhaust valves C . scavenging air D . injector

  查看最佳答案

• With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pumped out by （）.

  A . a brine pump B . an air ejector C . a feed pump D . distillate pum

  查看最佳答案

• Holes in the bulwark，which allow deck water to drain into the sea，are（）.

  A . doggers B . fidleys C . freeing ports D . swash port

  查看最佳答案

• （） is the production of pure water from sea water by evaporation and re-condensing.

  A . Evaporation B . Circulation C . Condensation D . Distillatio

  查看最佳答案

• Sea water temporarily pumped into tanks to simulate the increased vertical loading of environmental forces is termed（）.

  A . preload B . liquid variable load C . fixed load D . basic load

  查看最佳答案

• In （）, hot diesel engine jacket water passes over the stack and heats the sea water passing through the tubes.

  A . a flash generator B . a flash evaporator C . a vacuum boiling evaporator D . a boiler

  查看最佳答案

• Why will a two stage flash type distilling plant tend to operate more efficiently when operating in cold seawater?（）

  A . The colder seawater passing through the condenser tube bundles of the various stages increases evaporator vacuum B . The amount of heated feed water discharged from the feed water heater after cndenser is increased C . Fewer non-condensable gases are created by the flow of colder seawater D . More seawater is allowed to pass through the flint stage overflow weir

  查看最佳答案

• "Cast iron has poor corrosion resistance to sea water, especially in the presence of bronzes" Implies（）.

  A . east iron is a cheap material B . cast iron can pollute sea water C . cast iron has mere corrosive than bronzes to sea water D . cast iron is more corrosive to sea water when it meets with bronze

  查看最佳答案

• Distilled water is now largely used on board, this may be corrosive (due to presence of dissolves CO2) and （） to the taste.

  A . flat B . slat C . sweet D . acid

  查看最佳答案

• Permission is requested to pump out about 200 tons of clean sea ballast water for （） purposes．

  A . safe manning B . trimming C . avoiding collision D . preventing pollutio

  查看最佳答案

• Holes in the bulwark,Which allow deck water to drain into the sea, are（）.

  A . doggers B . fidleys C . freeing ports D . swash port

  查看最佳答案

• How many people are saved from the icy sea water?

  查看最佳答案

• 1．____is the main channel of water exchange between Indian Ocean and South China Sea.

  查看最佳答案

• 11. The Strait, and adjacent waters of South China Sea to the E, are comparatively______.

  查看最佳答案

• You’re at sea and you’re dying of thirst. Can you drink sea water？

  A．A You can drink it． Sea water is water after all． B．B You should never drink sea water． It would make your body even thirstier． C．C You can drink it, otherwise you may di E．

  查看最佳答案

• Scarcely had the boat reached the open water______it encountered high winds and heavy seas.

  A．than B．as C．when D．since

  查看最佳答案