更多"When（）clean ballast water from any "的相关试题:
[单项选择]When（）clean ballast water from any vessel，an application shall be made to Harbor Authorities for approval.
A. discharging
B. recircling
C. loading
D. taking in
[单项选择]In ballast my vessel’s draft is（）.
A. 12 feet
B. 8 miles
C. 7 fathoms
D. 10 foot
[单项选择]To（）sanitary water from any vessel，an application shall be made to Harbor Authorities for approval.
A. discharge
B. recircle
C. load
D. take in
[单项选择]In view of（）bilge water from any vessel，an application shall be made to Harbor Authorities for approval．
A. discharging
B. recircling
C. loading
D. taking in
[单项选择]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
[单项选择]The phrase VESSEL IN BALLAST usually means（）.
A. the ship is fully loaded
B. the ship loaded with water
C. a ship with cargo
D. a ship with no cargo
[单项选择]If in doubt as to the true water level when a boiler is being oil-fired, you should （）.
A. take no measures
B. extinguish the fire as soon as possible
C. feed water to the boiler
D. open the blow down valve
[单项选择]When a tornado moves over the water from land it is called a（）.
A. Tornado
B. Waterspout
C. Hurricane
D. Cyclone
[单项选择]An excessive amount of water is prevented from entering a vessel using a water lubricated stern tube bearing by the use of the （）.
A. propeller hub
B. lignum vitae
C. shaft packing
D. labyrinth seal
[单项选择]When distilling salt water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.
A. to cut down the amount of cooling water needed
B. to prevent an excess amount of cooling water from being discharged to the bilges
C. to supply hot water to the evaporator for more economical operation
D. None of the above is tree
[单项选择]When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.
A. to decrease scale formation
B. for better cooling effect
C. for more economical purpose
D. to raise vacuum
[单项选择]A centrifugal pump may fail to deliver water when first started if the （）.
A. water seal pipe is plugged
B. pump is not primed
C. seal ring is improperly located
D. impeller is flooded
[单项选择]If you have to jump in the water when abandoning a vessel，your legs should be（）.
A. spread apart as far as possible
B. held as tightly against your chest as possible
C. in a kneeling position
D. extended straight down and crossed at the ankles
[单项选择]For the deepest water when rounding a bend in a river，you should navigate your vessel（）.
A. toward the inside of the bend
B. toward the outside of the bend
C. toward the center of the river just before the bend，then change course for the river's center after the bend
D. in the river's center
[单项选择]For the purpose of（）tank or hold washings from any vessel，an application shall be made to Harbor Authorities for approval.
A. discharging
B. recircling
C. loading
D. taking in
[单项选择]Prior to a ship’s departure from any port （） should be tested with deck officer to ensure satisfactory operation.
A. fire fighting pump
B. the steering gear
C. life boat engine
D. the main engine
[单项选择]The oil （） in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.
A. filter
B. hole
C. pollution
D. content
[单项选择]（） is the production of pure water from sea water by evaporation and re-condensing.
A. Evaporation
B. Circulation
C. Condensation
D. Distillation
[单项选择]We use （） to distill fresh water from sea water.
A. engine
B. sea water pump
C. cylinder cooler
D. fresh water generator
