When the water produced from most evaporator is supplied for

When the water produced from most evaporator is supplied for drinking purpose, it must be treated to ensure it is biologically pure and _____.

A.slightly acidic

B.slightly alkaline

C.no salty

D.slightly bitter

When is the density of the water required to be logged in the logbook of a ship?

A.Any time the vessel moves from water of one density into waters of a different density

B.Prior to getting underway when the vessel is floating in fresh or brackish water

C.Only when the vessel moves from fresh water into salt water

D.The density of the water is not required to be logged in the unofficial logbook

Which of the following is true?

A.The water in Texas have been reduced by 75%.

B.Most industries in the world suffer from water shortagers.

C.The underground water in Saudi Arabia might run out in 50 years.

D.Good management of water use resulted from the project in the Central Valley.

Heat exhaustion is caused by excessive ______.

A.loss of body temperature

B.loss of water and salt from the body

C.gain in body temperature

D.intake of water when working or exercising

Which of the following is NOT on the list items to be recorded in Oil Record Book Part I (machinery space operation)?

A.accidental discharge of oil

B.disposal of oil residues

C.quantity of water produced by F.W.G

D.discharge of dirty ballast or cleaning water from fuel oil tanks

______is the number of millimeters by which the mean draft changes when a ship passes from salt water to fresh water，or vice versa，whilst floating at the loaded draft．

A.TPC

B.The Fresh Water Allowance

C.Parallel sinking of the ship

D.UKC

The upper piston rings m large, slow-speed, two-stroke/cycle diesel engines are most effectively lubricated by oil ____.

A.fed from mechanical lubricators

B.thrown off from the main bearings

C.supplied from wick fed drip lubricators

D.flow from a centrifugal or banjo oiler